| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 254089000 | MULTIPLE LIFTERS (E.G., VEHICLE LIFTS) | 42 |
| 20090289238 | Horizontal universal frame lift system - The Horizontal Universal Frame Lift System is compromised of four telescoping posts located in each corner of a vehicle or trailer on which a universal metal frame is mounted to each of the four corners. The telescoping posts are raised and/or lowered with electronic actuators and drive screws. An electronic control module activates the actuators with the use of a toggle switch or hand held remote transmitter. When the actuators are activated with the toggle switch or remote control it raises and/or lowers the frame to the desired position. The frame itself mounts on the top inside of the cargo area of vehicle or trailer and as such a person may also mount any type of cover onto the frame which would also be raised or lowered with the frame. | 11-26-2009 |
| 20100213429 | JACK ASSEMBLY WITH MULTIPLE DEGREES OF FREEDOM - A jack assembly having multiple degrees of freedom is described. The jack assembly may provide the user the ability to select single degrees of freedom as desired. The jack assembly may include a pair of jacks, a connecting rod assembly, and a pivot adapter. The jacks may be engaged with a trailer and are adjustable along a Z-axis. The jacks may include an outer tube in a telescopic relationship with an inner tube and a drop leg in a telescopic relationship with the inner tube. The connecting rod assembly may be located between the jacks and be adjustable along an X-axis. The pivot adapter may be capable of pivoting the jacks in a Y-Z plane. The adapter may include a first end secured to an end of the connecting rod assembly and a second end secured to one of the jacks. | 08-26-2010 |
| 20100258774 | Lift Assembly And System - A portable, lightweight lift system employing one or more lift assemblies that counters effects of staging is disclosed. The lift system includes multiple lift assemblies, wherein each assembly may be connected to a lifting device such as a hydraulic or motorized jack. A lifting device comprises moving parts which are nested such that the difference in diameters of each of the moving parts is minimized. In one aspect, the lifting device is provided with an arrangement of seals such that, the working area of a smaller diameter tube is greater than the working area of a larger diameter tube causing the smaller tube to move before the larger tube. | 10-14-2010 |
| 20100276651 | Method and apparatus for leveling travel trailers - A method and apparatus for leveling travel trailers is provided by placing a first pair of remotely operable jacks at the lower front corners of the trailer, placing a left and right pair of remotely operable jacks on each side of the trailer close to the axle hangers, mounting front to back and side to side level sensor on the trailer, and then operating the first pair of jacks to elevate the trailer when disconnecting the trailer from the towing vehicle and establishing a front to back level status by reference to the sensor output and then operating the left and/or right pair of jacks to establish a side to side level status by reference to the sensor output. | 11-04-2010 |
| 20110037041 | System with Position-Determination for Lifting Columns, and Method Therefor - A system and method for lifting and lowering an object such as a vehicle, comprising: at least two lifting columns; communication means for communication with the at least two lifting columns; position-determining means for carrying out a position determination for each of the at least two lifting columns; selection means for selecting at least one of the lifting columns on the basis of the position determinations; and at least one control unit co-acting with the communication means during use for the purpose of controlling the lifting columns selected with the selection means. | 02-17-2011 |
| 20120025158 | UNDER-FLOOR LIFTING JACK FOR HIGH-SPEED ELECTRIC MULTIPLE UNIT TRAINSET - The invention discloses an Under-Floor Lifting Jack for High-Speed EMU trainset, comprising: a Main Electric Control Part for controlling the Jack, multiple Bogie Lifting Means arranged in pits, Fixed Rails on the ground between adjacent pits, and Body Hoists movable along dedicated rails on both sides of the Bogie Lifting Means, wherein Lifting Rails of the Bogie Lifting Means and the Fixed Rails form continuous rails, and one or more of the Bogie Lifting Means are set in each pit and adapted for lifting individually or synchronously in combination according to the wheel positions of different types of Electric Multiple Unit Trainsets under the control of the Main Electric Control Part. The invention is compatible with the maintenance of various EMU trainsets, thus the same lifting jack can satisfy maintenance requirements of various EMU trainsets, resulting in high compatibility and construction cost-reduction of the maintenance base for the EMU trainset. | 02-02-2012 |
| 20120080653 | MULTIPLE AXLE LIFT SYSTEM AND METHOD - A multiple axle lift system having a column mechanism and a carriage assembly is provided. The column mechanism has a base member with a central support member extending therefrom. The carriage assembly is slidably connected to the column mechanism and includes a centerline, a first lift pad assembly with a first lift pad for engaging a vehicle tire and a second lift pad assembly with a second lift pad for engaging a vehicle tire. The first and second lift pads are configured to face away from the centerline. | 04-05-2012 |
| 20120326107 | CONVEYING APPARATUS - A conveying apparatus is configured to attach a battery unit to a vehicle body at an attachment position by engaging at least three first fastening portions, which are arranged in the vehicle body, respectively with at least three corresponding second fastening portions, which are arranged in the battery unit. The conveying apparatus includes at least three mounts, at least three individual lifting mechanisms, and an individual control unit. The second fastening portions are respectively mounted on the mounts. The individual lifting mechanisms individually lift the mounts to raise the battery unit to the attachment position. The individual control unit is configured to individually control the individual lifting mechanisms. | 12-27-2012 |
| 20140103277 | Hybrid Wedge Jack/Scissor Lift Lifting Apparatus and Method of Operation Thereof - A hybrid wedge jack/scissor lift device for lifting heavy loads is provided, the device having a horizontally-oriented actuator coupled to a wedge that acts on lower and upper rollers coupled to a scissor lift. In operation, the actuator can drive the wedge in between the rollers, spreading them apart to raise the scissor lift. When the actuator retracts, the wedge is removed and the scissor lift collapses under the weight of the load. The wedge can be shaped in such a way that the lift has one or more intrinsically safe positions in which the rollers on the scissor lift fit into seats on the wedge, preventing the scissor lift from collapsing in the event of an actuator failure. An optional restraint bar safety mechanism is also provided. | 04-17-2014 |
| 20140151618 | COMPUTER RACK LIFTER ASSEMBLY - An apparatus is described that forms a lifting and lowering assembly for equipment racks, or other equipment items, by attaching lifters onto a computer equipment rack, and other datacenter equipment, in order to allow the equipment or equipment rack to be raised or lowered vertically without unloading the equipment rack. The lifters mounted on the equipment rack are controlled by a remote control passing signals through a power supply/relay control box that are connected to the rack mounted lifters. Through the attachment and activation of rack mounted lifters, the assembly may raise and lower fully loaded equipment racks in a vertical direction to assist in the maintenance and relocation of equipment racks or other data center equipment. | 06-05-2014 |
| 20140284532 | BRIDGE LIFTING SUPPORT BRACKET - A bridge lifting support bracket is disclosed, which comprises a supporting mechanism, comprising a bracket having a depressed area at a face thereof and a raising portion disposed at two sides of the bracket, respectively; and at least two jacks, disposed on a bottom face of the raising portions, respectively. As such, a space for receiving a jack properly is secured by digging out a space of a concrete protection layer of a lower structure and using a supporting mechanism cooperating therewith when only a small space or a closely tight bonding with no seam existing between a bridge and a pier, whereby a raising process of the bridge may be safely performed. | 09-25-2014 |
| 20140346421 | APPARATUS, SYSTEM AND METHOD FOR LIFTING A BUILDING - An apparatus, system and method for raising and lowering a building, wherein a yoke receives the end of a building lifting beam and travels vertically on a vertical guide. The yoke is connected to a jack, and the yoke and jack are provided with independently releasable locking means. In operation, the jack is locked on the guide at an initial supporting position to allow the yoke to move, and then the yoke is locked on the guide to allow the jack to move to a new supporting position on the guide, allowing the yoke to climb up and down the guide through alternating component lockings and movements. | 11-27-2014 |
| 20150097150 | BRIDGE LIFTING USED THREE-AXIAL PARALLEL MECHANISM - A bridge lifting support bracket is disclosed, which comprises a supporting mechanism, comprising a bracket having a depressed area at a face thereof and a lifting portion disposed at two sides of the bracket, respectively; and at least two jacks, disposed on a bottom face of the lifting portions, respectively. As such, a space for receiving a jack properly is secured by digging out a space of a concrete protection layer of a lower structure and using a supporting mechanism cooperating therewith when only a small space or a closely tight bonding with no seam existing between a bridge and a pier, whereby a lifting process of the bridge may be safely performed. | 04-09-2015 |
| 20160002014 | Lifting Column with Modular Power System for Lifting a Vehicle and System and Method Therefor - The present invention relates to a lifting column, lifting system and method for lifting a vehicle. The lifting column according to the invention includes a frame with a carrier configured for carrying the vehicle; a drive for driving the carrier in at least one of the ascent or descent of the carrier; and a modular power system configured for providing power to the drive and adapted to comprise a variable number of energy storage systems. | 01-07-2016 |
| 20160039646 | Low Profile Drop Table - A lifting apparatus having two rails spaced apart at a distance and two lifting mechanisms, each lifting mechanism supporting one of the two rails. A platform is disposed between the two rails such that movement of the lifting mechanisms causes the rails to displace relative to the platform. A base has the two lifting mechanisms connected thereto and the platform is connected to the base. The base moves horizontally along a floor. Further, the floor may be disposed in a pit and the travel of the rails between minimum and maximum rail heights may be greater than 62.5% of the depth of the pit. The minimum rail height may be less than 50% of the depth of the pit. | 02-11-2016 |
| 20160046470 | LIFTING DEVICE - A lifting device, in particular for lifting and lowering loads, vehicles or similar, having a vertical lifting column, having a support arranged on the lifting column, which is guided by a guide on the lifting column and is able to be driven vertically along the lifting column, having a drive device for lifting and lowering the support and a load receiver arranged on the support, wherein the load receiver is able to be driven over and has a drive-on region, a support region and a drive-off region which are arranged in a row along a mutual axis in the drive-over direction and the load receiver has a holding arm outside of the support region and outside of the drive-over direction of the drive-on region or drive-off region. | 02-18-2016 |
| 20190144248 | An improved method for the set-up and control of a lift system | 05-16-2019 |
| 20090057636 | PORTABLE LIFT DEVICE AND SYSTEM - A lift device having a lift structure and a control structure. The lift structure includes a plurality of hydraulic cylinders concentrically arranged. Each cylinder includes a first chamber and a second chamber. At least one of the cylinders includes the second chamber being in fluid communication the first chamber of an adjacent cylinder. The cylinders are operably disposed to extend or retract in response to fluid pressure applied to a first chamber of at least one of the cylinders. The control structure is arranged and disposed to apply a control force to at least one of the cylinders to controllably extend or retract the plurality of cylinders. A portable lift system and method for lifting a platform is also disclosed. | 03-05-2009 |
| 20110210298 | Post lift for vehicles - The post lift ( | 09-01-2011 |
| 20110309316 | SEMI-SCISSOR LIFT - A semi-scissor lift includes a pair of vehicle loading plates parallel to one another, two pairs of lift units, each of which is configured to lift a corresponding vehicle loading plate, and a power unit configured to operate the two pairs of lift units. The power unit includes a number of hydraulic cylinder-piston assemblies, each having an end coupled to appropriate lift units. The number of hydraulic cylinder-piston assemblies includes a first hydraulic cylinder-piston assembly and a second hydraulic cylinder-piston assembly provided under different vehicle loading plates and at different sides thereof, and a third hydraulic cylinder-piston assembly provided under the same vehicle loading plate as the second hydraulic cylinder-piston assembly. Hydraulic cylinders associated with the first hydraulic cylinder-piston assembly and the second hydraulic cylinder-piston assembly and hydraulic cylinders associated with the second hydraulic cylinder-piston assembly and the third hydraulic cylinder-piston assembly are coupled in series to one another. | 12-22-2011 |
| 20120168701 | Vehicle Lift - A motor vehicle lift includes two parallel runways, each provided with at least two elevating devices each having first and second uprights hinged to each other, to the floor (runway) and to the runway (floor) respectively; first and second arms hinged together, the second arm being further hinged to the second upright along a hinging axis equidistant from the axis on which the second upright is hinged to the runway (floor) and from the end of the second arm, which is slidable along a guide provided in the runway (floor), the first arm being also hinged to the first upright; and an actuator device securable selectively to two elements of the quadrilateral formed from the first/second uprights and the first/second arms, at least one of the parts of the quadrilateral being provided with elastic means to vary the dimension between the two hinged ends. | 07-05-2012 |
| 20130240812 | ELECTRONICALLY CONTROLLED WHEEL LIFT SYSTEM - A wheel lift system capable of performing an electronically synchronized lift using two or more individual lifts. In one embodiment, the wheel lift system is pneumatically powered via an external source of compressed air, and the system is electronically controlled from a common control station/module. The common control station/module can include a moveable cart and/or a wireless handheld control module. In one embodiment, each lift of the wheel lift system is connected to a common movable cart and a user control interface is also connected, either physically or wirelessly, to the movable cart. | 09-19-2013 |
| 20140048760 | SYNCHRONIZED LIFTING AND LOWERING APPARATUS - A synchronous lifting or lowering system with hydraulic cylinders controlled by parallel-connected lift valves having two fluid passages. Hydraulic fluid for extending or retracting the actuators is delivered by a hydraulic supply system alternating between the two passages. Each time the supply circuit alternates passages, a fixed volume of hydraulic fluid is transferred during lifting or received during lowering by the respective lift or lowering valves to or from the cylinders causing the rods to lift or lower a proportionate amount. All of the rods extend during advancement or retract during lowering by approximately the same increment each time the supply circuit alternates passages. Because the rods all extend or retract the same increment each cycle, the load is lifted or lowered evenly and the need for height sensors or transducers is eliminated. | 02-20-2014 |
| 20140084230 | CONTAINER DATA CENTER AND ADJUSTMENT MEMBER THEREOF - A container data center includes a container and a number of adjustment members. Each adjustment member includes a base, a jack fixed on the base, and a supporting block fastened between a bottom of the container and the jack. The jack is operated to move the supporting block up and down. | 03-27-2014 |
| 20150014616 | LIFTING DEVICE AND LIFTING PLATFORM WITH SUCH A LIFTING DEVICE - A pneumatically or hydraulically activated lifting device has a main carrier with a first cavity having a first lifting element arranged inside the first cavity. The main carrier also has a second cavity arranged in fixed movement with respect to the first cavity. A second lifting element is arranged inside this second cavity and is movable in the two mutually opposed directions of movement with respect to this cavity. | 01-15-2015 |
| 20150076431 | PORTABLE AUTOMOBILE LIFT - A jack assembly includes a base, a support platform, a pair of links connecting the base to the support platform and an actuator connected between the base and the support platform. The actuator is operable to move the support platform between lowered and raised positions. The actuator may be coupled to a power assist cylinder which utilizes pressurized compressible fluid to assist in lowering the support platform. A safety lock system includes a lock bar pivotally connected to the support platform and one or more pockets on the base positioned to receive a free end of the lock bar to retain the support platform in a selected raised position. A preferred support platform includes trays which receive contact blocks selected from a set of varied contact blocks. A portable automobile lift comprises a pair of the jack assemblies in combination with a portable power unit. | 03-19-2015 |
| 20150102275 | Jackable Building Foundation - A jackable building foundation includes a steel beam support frame platform to which one or more hydraulic jacks are attached. Vertical movement of the platform in response to jacking is constrained by cuboidal column guides at the four corners. Each of the column guides comprises two tiers of square roller frames, within each of which is an I-beam engaged between the flanges on either side by two rollers supported on horizontal axes. The orientations of the I-beams and rollers alternate orthogonally at each corner of the platform, so that torques generated by uneven jacking are suppressed and do not result in jamming of the platform as it rises. | 04-16-2015 |
| 20150144853 | LIFT APPARATUS FOR LIFTING HEAVY LOADS - A lift apparatus having a plurality of cylinder-piston assemblies arranged in pairs with respectively one hydraulic medium supply and drain. For each pair of assemblies, one cylinder-piston assembly is a command assembly and connected thereto is a hydraulic pressure supply. The respective other cylinder-piston assembly is a response assembly, with its supply connected to the drain of the command assembly. For synchronized lifting at several lift points without active regulation, at least three pairs of assemblies hydraulically cooperate with each other in a serial circuit with the hydraulic medium drain of the command assembly of an upstream pair of assemblies is connected to the hydraulic medium supply of the response assembly of the next downstream pair of assemblies and the hydraulic medium drain of the command assembly of the last pair of assemblies is connected to the hydraulic medium supply of the response assembly of a first assembly pair. | 05-28-2015 |
| 20150298947 | GAS REGENERATION SYSTEM AND HYDRAULIC LIFT INCLUDING THE SAME - A hydraulic lift is provided. The hydraulic lift may include a hydraulic cylinder defining a fluid chamber. The hydraulic cylinder may have a piston rod extending into the fluid chamber, a seal dividing the fluid chamber into a liquid chamber and a gas chamber, and a gas outlet from the gas chamber. The hydraulic lift may further include a pneumatic line in fluid communication with the gas outlet. The line may accumulate gas that is compressed in the gas chamber when the hydraulic cylinder is energized. The hydraulic lift may further include a load support for carrying a load and coupled to the hydraulic cylinder such that energizing the hydraulic cylinder raises the load support. The hydraulic lift is free of pneumatic tanks for compressed gas storage. A gas regeneration system and method of regenerating gas is also provided. | 10-22-2015 |
| 20150329336 | LOAD INDICATOR FOR VEHICLE LIFT - An apparatus comprises a frame, a vehicle engagement assembly, a lift actuation assembly, a locking assembly, and an indicator system. The vehicle engagement assembly is designed to vertically lift a vehicle. The frame comprises at least one slot to provide a predetermined path for the vehicle engagement assembly. The lift assembly provides the force required to lift the vehicle while the locking assembly stabilizes the vehicles without further force required by the lift assembly. The indicator system determines whether the locking assembly or the lift assembly is predominantly keeping the vehicle lifted. | 11-19-2015 |
| 20150367962 | SYSTEM FOR FOLLOWING THE HANDLING OF AN AIRCRAFT ENGINE - The disclosure herein relates to an engine-handling following system for handling of an aircraft engine, including a cradle which supports the engine, and stands spread out under the cradle. Each stand includes seating intended for seating the stand on the ground, an actuating cylinder secured to the seating and having a translationally mobile piston, fixing structure secured to the exterior end of the piston and intended to be fixed to the cradle, and a supply intended alternately to cause the piston to be raised or lowered. Each stand also includes a detector to detect an inappropriate movement of the piston, and blocking to block the movement of the piston when the detector detects an inappropriate movement of the piston. Thus, when an inappropriate movement of the piston is detected, the blocking blocks the cradle and prevents it from tipping. | 12-24-2015 |
| 20160052757 | Lifting Device and System with Integrated Drive Unit for Lifting a Vehicle, and Method There For - Provided is a lifting device, lifting system and method for lifting a vehicle. The lifting device according to the invention includes a frame with a carrier configured for carrying the vehicle; a drive which acts on the carrier, wherein the drive includes an integrated hydraulic cylinder drive unit configured for raising the carrier with the integrated hydraulic cylinder drive unit including: a housing of a cylinder; a piston rod movable in the housing; a height measuring system configured for measuring the displacement of the piston rod; and an integrated hydraulic fluid tank and motor unit that is configured for driving the piston rod. | 02-25-2016 |
| 20160107870 | HYDRAULIC SYNCHRONIZER - An apparatus includes a housing, a piston, an input cavity, a first actuating shaft, a first output cavity, and a second output cavity. The housing comprise an input port, a first output port, a second output port, a first end, a second end, a first wide wall having a first internal surface, and a chamber at least partially defined by the first end and the first internal surface. The piston is able to actuate along the first internal surface of the first side wall. The input cavity is in fluid communication with the input port. The first output cavity is in fluid communication with the first output port. The second output cavity is in fluid communication with the second output port. The first actuating shaft is fixed to the piston and helps fluidly isolate the first output port from the second output port. | 04-21-2016 |
| 254090000 | Track-straddling platform | 1 |
| 20090020736 | Parallelogram Lift for Motor Vehicles - Parallelogram lift for motor vehicles, comprising a pair of base longitudinal members ( | 01-22-2009 |
| 254091000 | Swinging platform | 2 |
| 20090127522 | Apparatus for Lifting a Vehicle - Dislosed is an apparatus for lifting a vehicle. The apparatus comprises a frame assembly, an arm assembly and a lever. The frame assembly comprises a pair of distanced apart frame links and a plurality of connecting members connected in-between the pair of frame links. The arm assembly is coupled to the frame assembly for providing support to the frame assembly. The lever coupled to a connecting member of the plurality of connecting members, is capable of pivotally rotating the frame assembly from a rest position to an upright position. The apparatus is positioned below a frame of the vehicle and the frame assembly is rotated from the rest position to the upright position to lift the vehicle above a ground surface. | 05-21-2009 |
| 20110278516 | Vehicle lift - The present invention is a vehicle lift. In particular, the present invention is directed to a vehicle lift that can be mounted to the rear of a vehicle or be used as a stand-alone device to lift vehicles. The preferred embodiment comprises a vehicle platform supported by a first lifting arm and a second lifting arm. The lifting arms are mounted to shafts mounted on gears. Each shaft and lifting arm has a corresponding castellated end. A star plate attaches to the shaft, fitting within the castellated ends, and joins the shaft and lifting arm. A chain engages the gears and comprises two segments joined by adjustment rods. The rods adjust chain tension and gear timing. The chain is connected to an arm of a drive. When the arm extends, it moves the chain that rotates the gears and lifting arms and lifts the platform. | 11-17-2011 |
| 254092000 | Screw | 6 |
| 20100051885 | Lifting Method and Apparatus - A lifting apparatus and associated lifting method provide for safe and quick lifting of equipment, such as for pallet removal. The lifting apparatus comprises a lifting rail that incorporates a spindle assembly at each end. Each spindle assembly moves on a threaded rod, vertically retained in a lift stand. Rotating the spindle assembly causes it to move up or down on the threaded rod, depending on the direction of rotation. In one embodiment, one of the spindle assemblies includes a drive input that interfaces with an external driver that provides motive force for rotating the spindle assembly. A chain, for example, interconnects the driven spindle assembly with the other spindle assembly, such that both spindle assemblies rotate together, and the lifting rail therefore remains level as it moves up and down. A pair of lifting apparatuses may be placed along opposite sides of a given machine and operated together. | 03-04-2010 |
| 20110062399 | GRAIN BIN LIFTING SYSTEM AND METHOD - A building and grain bin lifting system utilizing a combination of lifting assemblies for lifting building and grain bin components. The lifting assembly includes a mobile supporting structure, a jack disposed within the mobile supporting structure configured to linearly travel, a mounting bracket attached to the jack, connectably interfacing with a building component, an exclusive power source for providing operating power to the jack, an onboard controller enabling selective raise/lower activation of the jack, and a remote control unit in communication with the controller allowing an operator to operate one or more controls associated with the lifting assembly. | 03-17-2011 |
| 20120132872 | Jacking Mechanism - A jacking mechanism for industrial equipment includes an insert securable in a casing hole of a first casing half of an item of industrial equipment and a jacking bolt insertable in the insert. The jacking bolt includes a jacking bolt thread meshable with an insert thread and a bearing tip secured to the jacking bolt. Advancing the jacking bolt through the insert brings the bearing tip into contact with a second casing half thus moving the first casing half relative to the second casing half. A jacking system for industrial equipment includes a plurality of jacking mechanisms configured to evenly change a gap between the first casing half and the second casing half. | 05-31-2012 |
| 20120193590 | LIFTING BRACKET ASSEMBLY INCLUDING JACK SCREW CONNECTOR - A lifting bracket assembly is disclosed. The lifting bracket assembly includes a motor, a pair of gear heads mechanically coupled to the motor such that each of the gear heads is coupled to a jack screw connector, a first and second jack screw, wherein each of the jack screws is coupled to one of the jack screw connectors and one of the gear heads, a first lifting bracket rotatably coupled to the first jack screw, a second lifting bracket rotatably coupled to the second jack screw, wherein the first and second jacks screws are different, a first guide tube fixedly coupled at a first end to the first lifting bracket and coupled to a first rail beam at a second end, and a second guide tube fixedly coupled at a first end to the second lifting bracket and coupled to a second rail beam at a second end. | 08-02-2012 |
| 20120298934 | TELESCOPIC STRUCTURE AND LIFTING SYSTEM - A telescopic structure formed by various bodies that are raised by a raising system which comprises a multitude of base pieces ( | 11-29-2012 |
| 20130146824 | APPARATUS & METHODS FOR AN IMPROVED VEHICLE JACK HAVING A SCREW JACK ASSEMBLY - A support frame for elevating an object includes an object engaging portion connected to a guide assembly. The guide moves along a support assembly by actuation of an elevation assembly. The support assembly may be releasably connected to a base by a removable pin allowing the device to fold for storage. The guide includes a safety mechanism whereby a pin connected to the guide slidably engages apertures in the support assembly. The elevation assembly may include a threaded member connected to the guide, and an elongated support member threadably engaging the threaded member. Rotation of the elongated support member moves the guide along the support and elevates the object engaging portion. The elevation assembly may include a pulling force member connected to the guide assembly. | 06-13-2013 |
| 254089000 | Fluid pressure | 16 |
| 20090289238 | Horizontal universal frame lift system - The Horizontal Universal Frame Lift System is compromised of four telescoping posts located in each corner of a vehicle or trailer on which a universal metal frame is mounted to each of the four corners. The telescoping posts are raised and/or lowered with electronic actuators and drive screws. An electronic control module activates the actuators with the use of a toggle switch or hand held remote transmitter. When the actuators are activated with the toggle switch or remote control it raises and/or lowers the frame to the desired position. The frame itself mounts on the top inside of the cargo area of vehicle or trailer and as such a person may also mount any type of cover onto the frame which would also be raised or lowered with the frame. | 11-26-2009 |
| 20100213429 | JACK ASSEMBLY WITH MULTIPLE DEGREES OF FREEDOM - A jack assembly having multiple degrees of freedom is described. The jack assembly may provide the user the ability to select single degrees of freedom as desired. The jack assembly may include a pair of jacks, a connecting rod assembly, and a pivot adapter. The jacks may be engaged with a trailer and are adjustable along a Z-axis. The jacks may include an outer tube in a telescopic relationship with an inner tube and a drop leg in a telescopic relationship with the inner tube. The connecting rod assembly may be located between the jacks and be adjustable along an X-axis. The pivot adapter may be capable of pivoting the jacks in a Y-Z plane. The adapter may include a first end secured to an end of the connecting rod assembly and a second end secured to one of the jacks. | 08-26-2010 |
| 20100258774 | Lift Assembly And System - A portable, lightweight lift system employing one or more lift assemblies that counters effects of staging is disclosed. The lift system includes multiple lift assemblies, wherein each assembly may be connected to a lifting device such as a hydraulic or motorized jack. A lifting device comprises moving parts which are nested such that the difference in diameters of each of the moving parts is minimized. In one aspect, the lifting device is provided with an arrangement of seals such that, the working area of a smaller diameter tube is greater than the working area of a larger diameter tube causing the smaller tube to move before the larger tube. | 10-14-2010 |
| 20100276651 | Method and apparatus for leveling travel trailers - A method and apparatus for leveling travel trailers is provided by placing a first pair of remotely operable jacks at the lower front corners of the trailer, placing a left and right pair of remotely operable jacks on each side of the trailer close to the axle hangers, mounting front to back and side to side level sensor on the trailer, and then operating the first pair of jacks to elevate the trailer when disconnecting the trailer from the towing vehicle and establishing a front to back level status by reference to the sensor output and then operating the left and/or right pair of jacks to establish a side to side level status by reference to the sensor output. | 11-04-2010 |
| 20110037041 | System with Position-Determination for Lifting Columns, and Method Therefor - A system and method for lifting and lowering an object such as a vehicle, comprising: at least two lifting columns; communication means for communication with the at least two lifting columns; position-determining means for carrying out a position determination for each of the at least two lifting columns; selection means for selecting at least one of the lifting columns on the basis of the position determinations; and at least one control unit co-acting with the communication means during use for the purpose of controlling the lifting columns selected with the selection means. | 02-17-2011 |
| 20120025158 | UNDER-FLOOR LIFTING JACK FOR HIGH-SPEED ELECTRIC MULTIPLE UNIT TRAINSET - The invention discloses an Under-Floor Lifting Jack for High-Speed EMU trainset, comprising: a Main Electric Control Part for controlling the Jack, multiple Bogie Lifting Means arranged in pits, Fixed Rails on the ground between adjacent pits, and Body Hoists movable along dedicated rails on both sides of the Bogie Lifting Means, wherein Lifting Rails of the Bogie Lifting Means and the Fixed Rails form continuous rails, and one or more of the Bogie Lifting Means are set in each pit and adapted for lifting individually or synchronously in combination according to the wheel positions of different types of Electric Multiple Unit Trainsets under the control of the Main Electric Control Part. The invention is compatible with the maintenance of various EMU trainsets, thus the same lifting jack can satisfy maintenance requirements of various EMU trainsets, resulting in high compatibility and construction cost-reduction of the maintenance base for the EMU trainset. | 02-02-2012 |
| 20120080653 | MULTIPLE AXLE LIFT SYSTEM AND METHOD - A multiple axle lift system having a column mechanism and a carriage assembly is provided. The column mechanism has a base member with a central support member extending therefrom. The carriage assembly is slidably connected to the column mechanism and includes a centerline, a first lift pad assembly with a first lift pad for engaging a vehicle tire and a second lift pad assembly with a second lift pad for engaging a vehicle tire. The first and second lift pads are configured to face away from the centerline. | 04-05-2012 |
| 20120326107 | CONVEYING APPARATUS - A conveying apparatus is configured to attach a battery unit to a vehicle body at an attachment position by engaging at least three first fastening portions, which are arranged in the vehicle body, respectively with at least three corresponding second fastening portions, which are arranged in the battery unit. The conveying apparatus includes at least three mounts, at least three individual lifting mechanisms, and an individual control unit. The second fastening portions are respectively mounted on the mounts. The individual lifting mechanisms individually lift the mounts to raise the battery unit to the attachment position. The individual control unit is configured to individually control the individual lifting mechanisms. | 12-27-2012 |
| 20140103277 | Hybrid Wedge Jack/Scissor Lift Lifting Apparatus and Method of Operation Thereof - A hybrid wedge jack/scissor lift device for lifting heavy loads is provided, the device having a horizontally-oriented actuator coupled to a wedge that acts on lower and upper rollers coupled to a scissor lift. In operation, the actuator can drive the wedge in between the rollers, spreading them apart to raise the scissor lift. When the actuator retracts, the wedge is removed and the scissor lift collapses under the weight of the load. The wedge can be shaped in such a way that the lift has one or more intrinsically safe positions in which the rollers on the scissor lift fit into seats on the wedge, preventing the scissor lift from collapsing in the event of an actuator failure. An optional restraint bar safety mechanism is also provided. | 04-17-2014 |
| 20140151618 | COMPUTER RACK LIFTER ASSEMBLY - An apparatus is described that forms a lifting and lowering assembly for equipment racks, or other equipment items, by attaching lifters onto a computer equipment rack, and other datacenter equipment, in order to allow the equipment or equipment rack to be raised or lowered vertically without unloading the equipment rack. The lifters mounted on the equipment rack are controlled by a remote control passing signals through a power supply/relay control box that are connected to the rack mounted lifters. Through the attachment and activation of rack mounted lifters, the assembly may raise and lower fully loaded equipment racks in a vertical direction to assist in the maintenance and relocation of equipment racks or other data center equipment. | 06-05-2014 |
| 20140284532 | BRIDGE LIFTING SUPPORT BRACKET - A bridge lifting support bracket is disclosed, which comprises a supporting mechanism, comprising a bracket having a depressed area at a face thereof and a raising portion disposed at two sides of the bracket, respectively; and at least two jacks, disposed on a bottom face of the raising portions, respectively. As such, a space for receiving a jack properly is secured by digging out a space of a concrete protection layer of a lower structure and using a supporting mechanism cooperating therewith when only a small space or a closely tight bonding with no seam existing between a bridge and a pier, whereby a raising process of the bridge may be safely performed. | 09-25-2014 |
| 20140346421 | APPARATUS, SYSTEM AND METHOD FOR LIFTING A BUILDING - An apparatus, system and method for raising and lowering a building, wherein a yoke receives the end of a building lifting beam and travels vertically on a vertical guide. The yoke is connected to a jack, and the yoke and jack are provided with independently releasable locking means. In operation, the jack is locked on the guide at an initial supporting position to allow the yoke to move, and then the yoke is locked on the guide to allow the jack to move to a new supporting position on the guide, allowing the yoke to climb up and down the guide through alternating component lockings and movements. | 11-27-2014 |
| 20150097150 | BRIDGE LIFTING USED THREE-AXIAL PARALLEL MECHANISM - A bridge lifting support bracket is disclosed, which comprises a supporting mechanism, comprising a bracket having a depressed area at a face thereof and a lifting portion disposed at two sides of the bracket, respectively; and at least two jacks, disposed on a bottom face of the lifting portions, respectively. As such, a space for receiving a jack properly is secured by digging out a space of a concrete protection layer of a lower structure and using a supporting mechanism cooperating therewith when only a small space or a closely tight bonding with no seam existing between a bridge and a pier, whereby a lifting process of the bridge may be safely performed. | 04-09-2015 |
| 20160002014 | Lifting Column with Modular Power System for Lifting a Vehicle and System and Method Therefor - The present invention relates to a lifting column, lifting system and method for lifting a vehicle. The lifting column according to the invention includes a frame with a carrier configured for carrying the vehicle; a drive for driving the carrier in at least one of the ascent or descent of the carrier; and a modular power system configured for providing power to the drive and adapted to comprise a variable number of energy storage systems. | 01-07-2016 |
| 20160039646 | Low Profile Drop Table - A lifting apparatus having two rails spaced apart at a distance and two lifting mechanisms, each lifting mechanism supporting one of the two rails. A platform is disposed between the two rails such that movement of the lifting mechanisms causes the rails to displace relative to the platform. A base has the two lifting mechanisms connected thereto and the platform is connected to the base. The base moves horizontally along a floor. Further, the floor may be disposed in a pit and the travel of the rails between minimum and maximum rail heights may be greater than 62.5% of the depth of the pit. The minimum rail height may be less than 50% of the depth of the pit. | 02-11-2016 |
| 20160046470 | LIFTING DEVICE - A lifting device, in particular for lifting and lowering loads, vehicles or similar, having a vertical lifting column, having a support arranged on the lifting column, which is guided by a guide on the lifting column and is able to be driven vertically along the lifting column, having a drive device for lifting and lowering the support and a load receiver arranged on the support, wherein the load receiver is able to be driven over and has a drive-on region, a support region and a drive-off region which are arranged in a row along a mutual axis in the drive-over direction and the load receiver has a holding arm outside of the support region and outside of the drive-over direction of the drive-on region or drive-off region. | 02-18-2016 |
| 20190144248 | An improved method for the set-up and control of a lift system | 05-16-2019 |
| 20090057636 | PORTABLE LIFT DEVICE AND SYSTEM - A lift device having a lift structure and a control structure. The lift structure includes a plurality of hydraulic cylinders concentrically arranged. Each cylinder includes a first chamber and a second chamber. At least one of the cylinders includes the second chamber being in fluid communication the first chamber of an adjacent cylinder. The cylinders are operably disposed to extend or retract in response to fluid pressure applied to a first chamber of at least one of the cylinders. The control structure is arranged and disposed to apply a control force to at least one of the cylinders to controllably extend or retract the plurality of cylinders. A portable lift system and method for lifting a platform is also disclosed. | 03-05-2009 |
| 20110210298 | Post lift for vehicles - The post lift ( | 09-01-2011 |
| 20110309316 | SEMI-SCISSOR LIFT - A semi-scissor lift includes a pair of vehicle loading plates parallel to one another, two pairs of lift units, each of which is configured to lift a corresponding vehicle loading plate, and a power unit configured to operate the two pairs of lift units. The power unit includes a number of hydraulic cylinder-piston assemblies, each having an end coupled to appropriate lift units. The number of hydraulic cylinder-piston assemblies includes a first hydraulic cylinder-piston assembly and a second hydraulic cylinder-piston assembly provided under different vehicle loading plates and at different sides thereof, and a third hydraulic cylinder-piston assembly provided under the same vehicle loading plate as the second hydraulic cylinder-piston assembly. Hydraulic cylinders associated with the first hydraulic cylinder-piston assembly and the second hydraulic cylinder-piston assembly and hydraulic cylinders associated with the second hydraulic cylinder-piston assembly and the third hydraulic cylinder-piston assembly are coupled in series to one another. | 12-22-2011 |
| 20120168701 | Vehicle Lift - A motor vehicle lift includes two parallel runways, each provided with at least two elevating devices each having first and second uprights hinged to each other, to the floor (runway) and to the runway (floor) respectively; first and second arms hinged together, the second arm being further hinged to the second upright along a hinging axis equidistant from the axis on which the second upright is hinged to the runway (floor) and from the end of the second arm, which is slidable along a guide provided in the runway (floor), the first arm being also hinged to the first upright; and an actuator device securable selectively to two elements of the quadrilateral formed from the first/second uprights and the first/second arms, at least one of the parts of the quadrilateral being provided with elastic means to vary the dimension between the two hinged ends. | 07-05-2012 |
| 20130240812 | ELECTRONICALLY CONTROLLED WHEEL LIFT SYSTEM - A wheel lift system capable of performing an electronically synchronized lift using two or more individual lifts. In one embodiment, the wheel lift system is pneumatically powered via an external source of compressed air, and the system is electronically controlled from a common control station/module. The common control station/module can include a moveable cart and/or a wireless handheld control module. In one embodiment, each lift of the wheel lift system is connected to a common movable cart and a user control interface is also connected, either physically or wirelessly, to the movable cart. | 09-19-2013 |
| 20140048760 | SYNCHRONIZED LIFTING AND LOWERING APPARATUS - A synchronous lifting or lowering system with hydraulic cylinders controlled by parallel-connected lift valves having two fluid passages. Hydraulic fluid for extending or retracting the actuators is delivered by a hydraulic supply system alternating between the two passages. Each time the supply circuit alternates passages, a fixed volume of hydraulic fluid is transferred during lifting or received during lowering by the respective lift or lowering valves to or from the cylinders causing the rods to lift or lower a proportionate amount. All of the rods extend during advancement or retract during lowering by approximately the same increment each time the supply circuit alternates passages. Because the rods all extend or retract the same increment each cycle, the load is lifted or lowered evenly and the need for height sensors or transducers is eliminated. | 02-20-2014 |
| 20140084230 | CONTAINER DATA CENTER AND ADJUSTMENT MEMBER THEREOF - A container data center includes a container and a number of adjustment members. Each adjustment member includes a base, a jack fixed on the base, and a supporting block fastened between a bottom of the container and the jack. The jack is operated to move the supporting block up and down. | 03-27-2014 |
| 20150014616 | LIFTING DEVICE AND LIFTING PLATFORM WITH SUCH A LIFTING DEVICE - A pneumatically or hydraulically activated lifting device has a main carrier with a first cavity having a first lifting element arranged inside the first cavity. The main carrier also has a second cavity arranged in fixed movement with respect to the first cavity. A second lifting element is arranged inside this second cavity and is movable in the two mutually opposed directions of movement with respect to this cavity. | 01-15-2015 |
| 20150076431 | PORTABLE AUTOMOBILE LIFT - A jack assembly includes a base, a support platform, a pair of links connecting the base to the support platform and an actuator connected between the base and the support platform. The actuator is operable to move the support platform between lowered and raised positions. The actuator may be coupled to a power assist cylinder which utilizes pressurized compressible fluid to assist in lowering the support platform. A safety lock system includes a lock bar pivotally connected to the support platform and one or more pockets on the base positioned to receive a free end of the lock bar to retain the support platform in a selected raised position. A preferred support platform includes trays which receive contact blocks selected from a set of varied contact blocks. A portable automobile lift comprises a pair of the jack assemblies in combination with a portable power unit. | 03-19-2015 |
| 20150102275 | Jackable Building Foundation - A jackable building foundation includes a steel beam support frame platform to which one or more hydraulic jacks are attached. Vertical movement of the platform in response to jacking is constrained by cuboidal column guides at the four corners. Each of the column guides comprises two tiers of square roller frames, within each of which is an I-beam engaged between the flanges on either side by two rollers supported on horizontal axes. The orientations of the I-beams and rollers alternate orthogonally at each corner of the platform, so that torques generated by uneven jacking are suppressed and do not result in jamming of the platform as it rises. | 04-16-2015 |
| 20150144853 | LIFT APPARATUS FOR LIFTING HEAVY LOADS - A lift apparatus having a plurality of cylinder-piston assemblies arranged in pairs with respectively one hydraulic medium supply and drain. For each pair of assemblies, one cylinder-piston assembly is a command assembly and connected thereto is a hydraulic pressure supply. The respective other cylinder-piston assembly is a response assembly, with its supply connected to the drain of the command assembly. For synchronized lifting at several lift points without active regulation, at least three pairs of assemblies hydraulically cooperate with each other in a serial circuit with the hydraulic medium drain of the command assembly of an upstream pair of assemblies is connected to the hydraulic medium supply of the response assembly of the next downstream pair of assemblies and the hydraulic medium drain of the command assembly of the last pair of assemblies is connected to the hydraulic medium supply of the response assembly of a first assembly pair. | 05-28-2015 |
| 20150298947 | GAS REGENERATION SYSTEM AND HYDRAULIC LIFT INCLUDING THE SAME - A hydraulic lift is provided. The hydraulic lift may include a hydraulic cylinder defining a fluid chamber. The hydraulic cylinder may have a piston rod extending into the fluid chamber, a seal dividing the fluid chamber into a liquid chamber and a gas chamber, and a gas outlet from the gas chamber. The hydraulic lift may further include a pneumatic line in fluid communication with the gas outlet. The line may accumulate gas that is compressed in the gas chamber when the hydraulic cylinder is energized. The hydraulic lift may further include a load support for carrying a load and coupled to the hydraulic cylinder such that energizing the hydraulic cylinder raises the load support. The hydraulic lift is free of pneumatic tanks for compressed gas storage. A gas regeneration system and method of regenerating gas is also provided. | 10-22-2015 |
| 20150329336 | LOAD INDICATOR FOR VEHICLE LIFT - An apparatus comprises a frame, a vehicle engagement assembly, a lift actuation assembly, a locking assembly, and an indicator system. The vehicle engagement assembly is designed to vertically lift a vehicle. The frame comprises at least one slot to provide a predetermined path for the vehicle engagement assembly. The lift assembly provides the force required to lift the vehicle while the locking assembly stabilizes the vehicles without further force required by the lift assembly. The indicator system determines whether the locking assembly or the lift assembly is predominantly keeping the vehicle lifted. | 11-19-2015 |
| 20150367962 | SYSTEM FOR FOLLOWING THE HANDLING OF AN AIRCRAFT ENGINE - The disclosure herein relates to an engine-handling following system for handling of an aircraft engine, including a cradle which supports the engine, and stands spread out under the cradle. Each stand includes seating intended for seating the stand on the ground, an actuating cylinder secured to the seating and having a translationally mobile piston, fixing structure secured to the exterior end of the piston and intended to be fixed to the cradle, and a supply intended alternately to cause the piston to be raised or lowered. Each stand also includes a detector to detect an inappropriate movement of the piston, and blocking to block the movement of the piston when the detector detects an inappropriate movement of the piston. Thus, when an inappropriate movement of the piston is detected, the blocking blocks the cradle and prevents it from tipping. | 12-24-2015 |
| 20160052757 | Lifting Device and System with Integrated Drive Unit for Lifting a Vehicle, and Method There For - Provided is a lifting device, lifting system and method for lifting a vehicle. The lifting device according to the invention includes a frame with a carrier configured for carrying the vehicle; a drive which acts on the carrier, wherein the drive includes an integrated hydraulic cylinder drive unit configured for raising the carrier with the integrated hydraulic cylinder drive unit including: a housing of a cylinder; a piston rod movable in the housing; a height measuring system configured for measuring the displacement of the piston rod; and an integrated hydraulic fluid tank and motor unit that is configured for driving the piston rod. | 02-25-2016 |
| 20160107870 | HYDRAULIC SYNCHRONIZER - An apparatus includes a housing, a piston, an input cavity, a first actuating shaft, a first output cavity, and a second output cavity. The housing comprise an input port, a first output port, a second output port, a first end, a second end, a first wide wall having a first internal surface, and a chamber at least partially defined by the first end and the first internal surface. The piston is able to actuate along the first internal surface of the first side wall. The input cavity is in fluid communication with the input port. The first output cavity is in fluid communication with the first output port. The second output cavity is in fluid communication with the second output port. The first actuating shaft is fixed to the piston and helps fluidly isolate the first output port from the second output port. | 04-21-2016 |
