| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 198813000 | Device for tensioning belt | 32 |
| 20080289935 | DYNAMIC TENSION CONTROL APPARATUS AND METHOD FOR AERO-MECHANICAL CONVEYOR - A tensioning assembly for use in an aero-mechanical conveyor for moving bulk materials. The conveyor includes upper and lower housings having head and tail pulley assemblies mounted therein. The tensioning assembly includes first and second extendable tubes that define sections of inflow and outflow conveyor tubes that interconnect the upper and lower housings. An endless rope assembly is disposed within the conveyor tubes and around the head and tail pulleys. An adjustable actuator is positioned in cooperative engagement with the first and second extendable tubes. When the actuator is in a first position, the extendable tubes have a first length and when the actuator is in a second position, the extendable tubes have a second length. The actuator is configured to move between the first position and the second position in response to changes in tension within the endless rope assembly as indicated by a signal from a tension measuring device. | 11-27-2008 |
| 20080296131 | COMBINE HEADER BELT TENSIONING APPARATUS AND METHOD - A belt tensioning apparatus for a combine or harvester header has a frame with two spaced apart longitudinal support members and at least one transverse member attached to each of the longitudinal support members. An end roller support bracket has two bracket extensions extending longitudinally and disposed to slidingly engage with bracket extension receivers attached to the longitudinal support members. A push rod is longitudinally oriented and slidingly mounted on the transverse member intermediate to the longitudinal support members. The push rod is attached to the end roller support bracket and mounted to have a retracted position and an extended position. An actuator is attached to the longitudinal support members and exerts a substantially uniform force to the push rod along a range of travel of the push rod between the retracted position and the extended position. The actuator may be a scissors assembly or a hydraulic cylinder. | 12-04-2008 |
| 20090008223 | Feed conveying apparatus - There is provided a feed conveying apparatus in which the occurrence of a trouble due to a looseness of a disk cable is certainly prevented and feed is efficiently and stably conveyed into a feed conveying path by the disk cable without being left in the path. | 01-08-2009 |
| 20090078543 | Belt unit and image forming apparatus - A belt unit includes a first roller; a second roller; a belt extended with at least the first roller and the second roller; a first supporting member for supporting the first roller; a second supporting member disposed to be freely rotatable relative to the first supporting member for supporting the second roller; a switching member for switching the first supporting member and the second supporting member between a first state for applying tension to the belt and a second state for loosening the belt; and a regulating member for regulating the second supporting member to rotate. | 03-26-2009 |
| 20090114510 | CONVEYOR-BELT APPARATUS AND IMAGE HEATING APPARATUS - A conveyor-belt apparatus, including: a belt; a supporting member that rotatably supports the belt; a moving unit that displaces at least one end of the supporting member in a longitudinal direction to move the belt in the longitudinal direction; a tension changing unit that changes a tension of the belt in accordance with a moving state of the belt in the longitudinal direction when the moving unit displaces the end of the supporting member. | 05-07-2009 |
| 20100213036 | Tensioning Apparatus of a Circulating Element - A tensioning apparatus for a circulating element, such as a belt or a band, has a basic body in which a first chamber is formed. A piston is positioned in the first chamber and carries a piston rod. The piston can be displaced in the first chamber by the use of a pressure fluid. Either the piston rod or the base body is attached to the carrier for the belt or band. Either the piston rod or the basic body carries a head piece which can be moved in contact with the circulating element. A locking mechanism for the piston rod can be engaged and disengaged by the use of fluid pressure. | 08-26-2010 |
| 20100230248 | BELT DEVICE AND FIXING DEVICE - A belt device includes a belt; a driving unit that is provided inside the belt and drives the belt; a supporting unit that is provided inside the belt and supports the belt; and a position determination member that is fixed to one end in an axial direction of the driving unit or the supporting unit and comes in contact with an edge portion of the belt in the case where the belt is mounted so as to determine a position of the belt. | 09-16-2010 |
| 20100276259 | Tensioning device for drag conveyor - An automatic chain tensioner for a tubular drag conveyor tensions the conveyor chain hydraulically utilizing an air-over-oil hydraulic system. A hydraulic cylinder acts on chain idler sprocket to tension the chain. | 11-04-2010 |
| 20110073443 | MODULAR CONVEYOR SYSTEM AND METHOD - A low profile, portable, modular conveyor system is provided. The conveyor system includes three main components: a drive end, having a motor and gearboxes used to drive a pair of drive wheels, a center section, and an idle section comprising a stationary component attached to the center section and a pivoting component allowing the distal portion of the idle end to pivot in a transverse direction. The conveyor system includes means for hydraulically or mechanically adjusting the tension and tracking of the conveyor belt. The drive end may be removed from the conveyor system in a transverse direction relative to the longitudinal direction of the conveyor system. | 03-31-2011 |
| 20120255837 | TRANSMISSION MECHANISM AND SURFACE MOUNT DEVICE USING THE SAME - A transmission mechanism includes a feeder, a belt furling module, a tension maintaining module, and a carrier belt. The tension maintaining module and the belt furling module are positioned on the feeder, and the carrier belt runs along the feeder, the tension maintaining module, and the belt furling module in that order. The tension maintaining module includes a base, a pivot shaft slidably positioned on the base, and an elastic member sleeved on the pivot shaft. When the carrier belt relaxes, the elastic member releases its compression force to drive the pivot shaft to move away relative to the base, thereby maintaining the tension force of the carrier belt. The disclosure also provides a surface mount device using the transmission mechanism, which reduces the likelihood of the carrier belt breaking or jamming, thereby promoting improved precision and yield rate of the surface mounted equipment. | 10-11-2012 |
| 20130062167 | QUICK-REMOVE CONVEYOR BELT, IN PARTICULAR FOR TRANSPORTING FOOD PRODUCTS TO A PACKAGING STATION - A belt conveyor configured to convey foodstuff products to a packaging station. The belt conveyor includes a stationary structure and a supporting surface comprising a plurality of plates removably carried by the stationary structure. The belt conveyor also includes a belt having a rectilinear conveying branch in contact with the supporting surface and a return branch. The belt conveyor includes a motor-driven roller co-operating with the belt for continuously feeding the belt in a conveying direction. The belt conveyor further includes a return assembly for sending the belt back between the return branch and the conveying branch. The return assembly comprising at least one return member supported at its ends by a pair of arms having at least one pair of fork-like seats. The belt conveyor further includes a control device for displacing the motor-driven roller between a working position and a disassembly position. | 03-14-2013 |
| 20130098739 | BELT CONVEYANCE DEVICE - An intermediate transfer unit includes a shaft, a joint member, an apparatus frame and a supporting member. The joint member includes a first concave portion in which a first end portion in a longitudinal direction of the shaft is fittable at a plurality of angles around a first axis of the shaft, and a first peripheral portion having a second axis that is parallel to but does not share the same straight line with the first axis. The apparatus frame has a through hole. The supporting member has a second concave portion which the first peripheral portion is attachable to and removable from at a plurality of angles around the second axis, and is insertable into and removable from the through hole in the longitudinal direction. | 04-25-2013 |
| 20130199900 | BELT CONVEYOR ASSEMBLY - A belt conveyor assembly comprising a pair of elongate profile frames that are mounted in parallel; a conveyor belt positioned in between the profile frames; and a plurality of auxiliary components removably mounted to outer walls of the profile frames at any position along the length of the profile frames; and wherein the surface of the inner walls of the profile frames are planar over their length and height at least in a region where the conveyor belt is positioned. | 08-08-2013 |
| 20130277178 | Device for tensioning a tension mechanism of a conveying device - A device for tensioning a tension mechanism of a conveying device includes a number of feeder aids extending between a drive wheel and at least one guide wheel. At least one hydraulic cylinder (including a hydraulic piston) adjusts a wheel center distance between the at least one guide wheel and the drive wheel in order to change the tension of the tension mechanism. The at least one hydraulic cylinder acts directly on the guide wheel. In order to tension the tension mechanism, the hydraulic piston is displaceably disposed in a pressure chamber and acted upon by pressure medium from a pressure source via a check valve that opens toward the pressure chamber. Once a blocked state of the check valve is reached, the pressure chamber is connected to a device for receiving a defined volume of pressure medium. | 10-24-2013 |
| 20140144758 | CONVEYOR - A conveyor, comprising; two opposite rolls ( | 05-29-2014 |
| 20140144759 | BELT TRANSPORTING DEVICE AND IMAGE FORMING APPARATUS - A belt transporting device includes a belt; first and second adjustment members provided at two respective ends of a tension roller in a belt width direction orthogonal to a direction of rotation of the belt, the first and second adjustment members each being movable by receiving a force from the belt; and a link member that interlocks the movement of the first adjustment member and the movement of the second adjustment member. If the belt is laterally shifted in the belt width direction, one of the first and second adjustment members moves by receiving a force from the belt while the other is moved by the link member such that the tension roller is tilted with respect to a driving roller. | 05-29-2014 |
| 20140151195 | LOW COST HIGH THROUGHPUT PROCESSING PLATFORM - As part of a system for processing workpieces, a workpiece support arrangement, separate from a process chamber arrangement supports at least two workpieces at least generally in a stacked relationship to form a workpiece column. A transfer arrangement transports at least two of the workpieces between the workpiece column and the process chamber arrangement by simultaneously moving the two workpieces at least generally along first and second transfer paths, respectively, that are defined between the workpiece column and the first and second process stations. The transfer arrangement can simultaneously move untreated and treated workpieces. Vertical motion swing arms and coaxial swing arms are described. A pair of spaced apart swing arms, the workpiece column and the processing stations can cooperatively define a pentagonal shape. Timing belt backlash elimination, a dual degree of freedom slot valve and low point chamber pumping, for removing chamber contaminants, are also described. | 06-05-2014 |
| 20140183008 | BELT FEEDING DEVICE FOR IMAGE FORMING APPARATUS - A belt feeding device for an image forming apparatus includes a roller unit for supporting an endless belt, the roller unit including a driven rotatable member, and a pair of shaft supporting members for supporting opposite end portions of the rotatable member with respect to a widthwise direction crossing with a feeding direction of the endless belt, the shaft supporting members being provided with respective sliding surfaces for applying frictional forces by sliding relative to an inner surface of the endless belt; a stretching roller cooperative with the roller unit to support the endless belt; and a supporting mechanism for inclinably supporting the roller unit so as to incline a rotational axis of the rotatable member relative to a rotational axis of the stretching roller by the frictional force. | 07-03-2014 |
| 20140262693 | WINCH DRUM TENSION ISOLATION SYSTEM - A winch drum tension isolation system includes a winch drum including an outwardly extending flange, the flange including a plurality of holes spaced along the flange. The winch drum tension isolation system also includes a locking mechanism positioned proximate the winch drum and including a locking member engageable with the flange. The locking member is movable between a first position, in which the locking member is received in one of the plurality of holes to prevent rotation of the winch drum, and a second position, in which the locking member is spaced apart from the flange to permit rotation of the winch drum. | 09-18-2014 |
| 20140311875 | TAKE-UP DRUM CARRIAGE ASSEMBLY FOR VEHICLE WASH CONVEYOR - A take-up drum carriage assembly may include a tensioning take-up drum, a carriage for supporting the tensioning take-up drum, a plurality of pivot arms for pivotably supporting the carriage relative to a vehicle wash conveyor frame, and for each of the pivot arms, at least one interconnector for pivotably interconnecting the pivot arm and the carriage. Each interconnector may include a resilient support that supports at least part of the weight of the carriage. The interconnector may fix the resilient support relative to one of the pivot arm and the carriage. The other of the pivot arm and the carriage may rock relative to, and against, the resilient support upon longitudinal movement of the carriage relative to the vehicle wash conveyor frame during tensioning. The pivot arms may be swing arms. | 10-23-2014 |
| 20140339056 | BELT CONVEYOR UNIT AND IMAGE FORMING APPARATUS - An inclined flange roller is located outward of an end portion of a tension roller in the belt width direction. The inclined flange roller includes a flange surface capable of being in contact with the edge portion of a belt in a region in which the belt is wound around the tension roller and a roller surface capable of being in contact with an inner peripheral surface of the belt between the flange surface and an end portion of the tension roller in the belt width direction. | 11-20-2014 |
| 20140353128 | CONVEYOR BELT TRACKING AND CONTINUOUS TAKE-UP TENSIONING - A tracking and tensioning device for a belt conveyor that provides a tracking assembly that is mounted to the conveyor frame. The tracking assembly is capable of sliding along the length of the conveyor frame. An idler roller is mounted to the tracking assembly that is held under constant tension by an adjustable tensioner. The adjustable tensioner provides take-up tensioning at the portion of the belt with the lowest operating tension. | 12-04-2014 |
| 20150075949 | CONVEYOR SYSTEM - A conveyor system including a track extending between a loading region and a discharge region, an endless belt bendable into a tubular shape, the endless belt having thickened edges, a number of carriages moveably mounted to the track, the carriages including belt rollers for engaging the edges of the belt to thereby support the belt, a loading carriage for allowing material to be loaded onto the belt, the loading station being moveable at least within the loading region, a discharge carriage for allowing material to be discharged from the belt, the discharge station being moveable at least within the discharge region and a number of intermediate carriages positioned between the loading and discharge carriages for supporting the belt along transport and return paths with the tubular shape. | 03-19-2015 |
| 20150329292 | BELT TRANSPORTING DEVICE AND IMAGE FORMING APPARATUS - A belt transporting device includes a belt; first and second adjustment members provided at two respective ends of a tension roller in a belt width direction orthogonal to a direction of rotation of the belt, the first and second adjustment members each being movable by receiving a force from the belt; and a link member that interlocks the movement of the first adjustment member and the movement of the second adjustment member. If the belt is laterally shifted in the belt width direction, one of the first and second adjustment members moves by receiving a force from the belt while the other is moved by the link member such that the tension roller is tilted with respect to a driving roller. | 11-19-2015 |
| 20160083191 | DRIVE CONNECTION WITH INTEGRATED CHAIN TENSIONING APPARATUS FOR FACE CONVEYORS - A drive connection is disclosed. The drive connection may be configured to be interconnected between a main driving unit and a main gear unit of a driving device configured to drive a chain of a conveyor of a longwall device. The drive connection may have a housing configured to be connected to the main driving unit and to the main gear unit. The drive connection may also have a drive shaft disposed within the housing and configured to transmit torque from the main driving unit to the main gear unit. In addition, the drive connection may have a chain tensioning apparatus disposed within the housing. The chain tensioning apparatus may have a worm drive interacting with the drive shaft. The chain tensioning apparatus may be configured to drive the drive shaft for tensioning the chain of the conveyor when the main driving unit is in a non-operative state. | 03-24-2016 |
| 20160107839 | Apparatus For Transporting Substantially Non-Rigid Shaped Bodies - An apparatus for transporting endless dough strips or substantially non-rigid shaped bodies such as, in particular, biscuit dough shaped bodies and the like, includes a machine frame, a closed circulating conveyor belt, a deflecting roller which contacts the conveyor belt on the inner side for deflection and has a deflection axle or shaft which is mounted rotationally laterally on the machine frame, and a drive roller which contacts the conveyor belt on the inner side for driving and has a drive shaft which is mounted rotationally laterally on the machine frame and is driven by a drive. The drive roller is connected to the machine frame by a pivoting apparatus. | 04-21-2016 |
| 198814000 | With spring biasing means | 2 |
| 20130037391 | TIGHTENER - The invention relates to a tensioning device ( | 02-14-2013 |
| 20130105282 | Conveyor Belt Tensioner for an Agricultural Harvesting Header | 05-02-2013 |
| 198815000 | With counterweight | 1 |
| 20140048390 | TAKE-UP DEVICE - A conveyor take-up device may include a carriage, a pulley, a counterweight assembly, at least one connector, and at least one safety restraint. The carriage may be movably joined to a support structure and may support the pulley, which may be configured for operative association with an endless conveyor belt. The counterweight assembly may include a counterweight arm, a tension arm, and a counterweight. The counterweight arm may be pivotally joined to the support structure and configured to move between upper and lower limit positions. The tension arm may extend generally transversely from a first end portion of the counterweight arm with the counterweight supported by the counterweight arm distal from the tension arm. The connector may be joined to the carriage at one end portion of connector and to the tension arm at a second end portion that is distal the first end portion of the connector. | 02-20-2014 |
| 198816000 | With screw adjusting means | 3 |
| 20080223696 | Multipurpose Linear Guide - A linear band guide device for supporting and defining a path for a band includes an elongate band support element, a first band end support at a first end of said elongate band support element, a second band end support at a second end of said elongate band support element. The elongate band support element has a substantially flat top surface capable of functioning as a slide bed for the band. | 09-18-2008 |
| 20100116628 | Limited force, self locking tensioner - A tensioning device configured for use in a conveyor system as an idler roller over which a belt is wound under tension includes a housing, an arm mounted in the housing for linear movement in and out of the housing, a roller mechanism mounted at a distal end of the arm including a roller configured for rolling contact with a belt of a conveyor system, and an actuator for extending and retracting the arm from the housing. The actuator includes a worm shaft and a lead screw. A pinion of the worm shaft engages a gear affixed at one end of the lead screw. The tensioning device includes a coupling by which rotation of the lead screw results in outward movement of the arm when the worm shaft is rotated in a first direction, and which results in inward movement of the arm when the worm shaft is rotated in the opposite direction. Engagement of the worm shaft to the gear is self-locking. | 05-13-2010 |
| 20160251165 | TENSIONING DEVICE FOR CONVEYOR BELT | 09-01-2016 |
