| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 187233000 | Having specific drive-means for load support | 20 |
| 20080202857 | MATERIALS HANDLING VEHICLE - A materials handling vehicle is provided comprising a frame including a longitudinal centerline and an operator compartment; first and second front wheels coupled to the frame; a rear steer wheel assembly coupled to the frame; mast apparatus coupled to the frame and including a pair of forks; and a battery associated with the frame and having a center of gravity. The battery is preferably positioned such that the battery center of gravity is laterally offset from the longitudinal center line. A stability triangle for the vehicle is defined by a first point at the first front wheel, a second point at the second front wheel and a third point at the rear steer wheel assembly. Preferably, the stability triangle defines a scalene triangle. | 08-28-2008 |
| 20080202858 | MATERIALS HANDLING VEHICLE HAVING AT LEAST ONE CONTROLLER COUPLED TO A FRONT WALL OF A FRAME - A materials handling vehicle is provided comprising a frame including structure for defining an operator compartment and structure for defining a battery compartment; first and second front wheels coupled to the frame; a rear steer wheel assembly coupled to the frame; an electric motor; and a controller coupled to a front wall of the frame to control the operation of the electric motor. | 08-28-2008 |
| 20080314690 | Mast Lift and Mast Lift System - A lift system is coupled between a work platform and a mast on a mast lift. The lift system includes at least one lifting rope connected between the work platform and the mast via an idler roller and a hoist drum connected to the work platform. The idler roller is displaceable between an engaged position and a disengaged position based on an amount of tension on the lifting rope. A spring is connected to the idler roller and urges the idler roller toward the engaged position. A carriage latch assembly includes a carriage latch hook coupled with the idler roller and a pin secured to the mast. When the idler roller is disposed in the engaged position, the carriage latch hook is engageable with the pin. | 12-25-2008 |
| 20090159371 | Industrial Truck With A Lifting Device And A Towing Device - An industrial truck ( | 06-25-2009 |
| 20110259673 | LINEAR ACTUATOR - In a method for utilizing a wedge engagement mechanism as means for retaining an output shaft without requiring a large driving power, there is a need for preventing fatigue life of an actuator from being reduced as a result of stress at contacting portions of parts of wedge engagement portions of the wedge engagement mechanism becoming large. | 10-27-2011 |
| 20110297486 | FORKLIFT | 12-08-2011 |
| 20120012425 | LINEAR ACTUATOR AND FORKLIFT TRUCK - This invention includes a screw shaft | 01-19-2012 |
| 20120145486 | HYDRAULIC APPARATUS - The invention relates to a hydraulic apparatus comprising a hydraulic pump ( | 06-14-2012 |
| 20140305741 | LOAD HANDLING ASSEMBLY AND METHOD - A method of handling a load comprising a plurality of articles ( | 10-16-2014 |
| 20150303423 | WORK EQUIPMENT BATTERY CASE, WORK EQUIPMENT BATTERY UNIT, BATTERY POWERED WORK EQUIPMENT, AND BATTERY POWERED FORKLIFT - A work equipment battery case that stores a battery cell for driving a battery powered work equipment, the battery case includes: a plate-like bottom on which the battery cell is placed; and a plate-like side formed to project from the bottom, and arranged at an outside of the battery cell placed on the bottom, wherein a mass of a part of the side is larger than a mass of the other part of the side. | 10-22-2015 |
| 187234000 | Including fluid ram | 8 |
| 20080217110 | FLOOR CONVEYOR - A floor conveyor with a drive portion and a load portion, wherein the load portion has a lifting scaffold, on which a carrier for a load fork or an attachment device is guided to be adjustable in height, and at least one hydraulic adjusting cylinder is assigned to the carrier for adjusting the load fork or a part on the attachment device, and wherein a hydraulic pump driven by a motor is arranged in the drive portion, which is connected to the adjusting cylinder via a proportional valve and hydraulic tubes, wherein the proportional valve is mounted on the carrier and an on-off valve is arranged on the drive portion, which connects the hydraulic tubes with the proportional valve or disconnects them from the same at option. | 09-11-2008 |
| 20090050413 | CLAMP FORCE CONTROL - A clamp force control ( | 02-26-2009 |
| 20090218173 | Aerial Work Platform with Compact Air Compressor - An aerial work platform, in one embodiment, includes a platform, including a hydraulic lift, and a base unit. The base unit includes a combustion engine and a hydraulic pump driven by the combustion engine. The hydraulic pump may be configured to drive the hydraulic lift. The base unit may also include a rotary screw type compressor, belt-driven by the combustion engine. | 09-03-2009 |
| 20090236183 | Lift Control Interface - A lift control interface is operable to control and monitor a lift system. Each lift column in the system has such a lift control interface. The lift control interface allows a user to assign lift columns to a lift system. One or more of the assigned lift columns may be assigned to a column control group. The user may lock the selection of these columns. The status of the assigned, selected, and locked lift columns may appear on every lift control interface in the lift system. The user may govern operation of the selected columns in the column control group from a single control interface, such as any control interface at any of the selected columns. The lift control interfaces may include visual representations showing the relationships between the lift columns and a vehicle, such as with lift column icons being positioned around a vehicle icon. | 09-24-2009 |
| 20120292134 | ATTACHABLE FORKLIFT APPARATUS - The present invention is an attachable forklift apparatus that includes a front side with two elongated supports, two front plates and a middle plate, two vertical posts that are attached to the front side elongated supports and a hydraulic cylinder that provides hydraulic power to the apparatus disposed within the apparatus. The apparatus also includes a plurality of hydraulic cylinder hoses that are integral to the hydraulic cylinder and a back side that includes two elongated supports, a center opening and a plurality of forks. | 11-22-2012 |
| 20140124299 | ELECTRO-HYDRAULIC ACTUATOR (EHA) FOR PALLET TRUCK - An improvement to the component based hydraulic systems is an integrated electro-hydraulic actuator (EHA) that contains all components necessary to achieve power up, gravity return actuation of a lift mechanism such as the forks of a pallet truck. Further, improvements to known power-up, gravity-down component-based hydraulic circuits are described herein. The improvements provide for power up, gravity return functionality with fewer components as compared known systems. Finally, a method for controlling the EHA and/or hydraulic circuits described above is detailed herein and provides a user with maximum control of a lift mechanism during lower or “down mode,” but also provides for the least amount of energy consumption by the actuator. | 05-08-2014 |
| 20140299418 | Lifting Fork Board, Transport Device Provided Therewith, and Method for Transporting a Cargo - A lifting fork board includes: a frame provided with coupling means for coupling the fork board to a transport vehicle; an upright arranged on the frame and provided with a recess; and a cylinder arranged wholly or partially in the recess of the upright for the purpose of lifting the frame. | 10-09-2014 |
| 20140326542 | MATERIALS HANDLING VEHICLE MEASURING ELECTRIC CURRENT FLOW INTO/OUT OF A HYDRAULIC SYSTEM MOTOR - A materials handling vehicle is provided comprising: a support structure including a fixed member; a movable assembly coupled to the support structure; a hydraulic system; and a control system. The support structure further comprises lift apparatus to effect movement of the movable assembly relative to the support structure fixed member. The lift apparatus includes at least one ram/cylinder assembly. The hydraulic system includes a motor, a pump coupled to the motor to supply a pressurized fluid to the at least one ram/cylinder assembly, and at least one electronically controlled valve associated with the at least one ram/cylinder assembly. The control structure may measure an electric current flow into and/or out of the hydraulic system motor and reduce an operating speed of the hydraulic system motor if the electric current flow into and/or out of the hydraulic system motor is greater than or equal to a predetermined threshold value. | 11-06-2014 |
| 187235000 | Including cable accumulating-type drum | 2 |
| 20080245616 | Industrial Truck with Cable Storage Device - An industrial truck has a lifting mast ( | 10-09-2008 |
| 20160137468 | MODULAR PORTABLE LIFTING DEVICE - A modular and portable crane and forklift device is provided which is easily assembled and disassembled without requiring extraneous tools. The device composed of tubing components engaged to form an elongated lifting strut employs the force that a user imparts on a winch which is communicated to one or more cables and pulleys, to elevate and lower a load. The winch is positionable at ground level or an elevated position. | 05-19-2016 |
