Famous Patents
The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7066704 | Component feeder exchange cart, and mechanism and method for positioning component feeder A cart comprises a base frame, driver for extending an operational stroke of a hydraulic jack and transferring this movement into an up and down motion, a pair of elevating rods simultaneously lifted of lowered by movement of the driver, a pair of supporting frames ... | 06/27/2006 |
| 6896469 | Apparatus and method for hydraulically controlling a vehicle restraint A valve circuit, including a first and second circuit portion, for hydraulically controlling a loading dock vehicle restraint. The first circuit portion permits raising and lowering of the vehicle restraint. The second circuit portion permits extension and retractio... | 05/24/2005 |
| 6880301 | Pivotal and translational dock leveler lip A dock leveler, for bridging the gap between a loading dock platform and a vehicle at the dock, includes an adjustably overlapping lip and ramp that provide a traffic surface of variable length to accommodate situations where there is only a limited amount of space ... | 04/19/2005 |
| 6773221 | Positive locking mechanism for a wheel-activated vehicle restraint A wheel-activated vehicle restraint for use at a loading dock includes a wheel-blocking barrier that is selectively locked to a frame by a latching mechanism that engages an inverted gear rack. Components of the latching mechanism are arranged to prevent spreading a... | 08/10/2004 |
| 6676360 | Vehicle restraining device A device for restraining a truck from movement during the loading and unloading thereof while the truck is parked in a driveway in a loading dock. The truck restraining device has a lock assembly comprising a base and a locking arm pivotally mounted to th... | 01/13/2004 |
| 6547473 | Fastening device for conveying cart A fastening device for a conveying cart is used for fastening the conveying cart to a to-be-fastened apparatus. The device includes a flange provided on a side of the to-be-fastened apparatus, and having a pin standing therefrom, and a recess formed there... | 04/15/2003 |
| 6520008 | Hydraulic movement measuring system A system for measuring the distance of a hydraulic movement including an engine supplying power, a hydraulic cylinder for supplying hydraulic movement, and a pump coupled to the hydraulic cylinder for providing hydraulic fluid to the hydraulic cylinder. A... | 02/18/2003 |
| 6478525 | Wheel chocking device and method for using the same A wheel chocking device having a wheel chock that can be raised from a retracted position to a raised position. In the retracted position, the wheel chock is substantially flat, thereby allowing a truck to be driven over the wheel chock. In the raised pos... | 11/12/2002 |
| 6476572 | Power supply system and method for dock equipment An electric power supply system for dock equipment at a freight loading dock, such equipment including dock levelers and truck restraints which are powered by electric motors. The emergency power supply system utilizes electric powered freight moving vehi... | 11/05/2002 |
| 6454512 | Person-guided vehicle A person-guided vehicle (PGV) is provided for transporting and manipulating at least one carrier containing items such as semiconductor wafers to be loaded or unloaded at a load port. The PGV includes a wheeled cart having a frame configured to align with... | 09/24/2002 |
| 6439823 | Vehicle restraint device A restraint device for restraining a vehicle to a loading dock is disclosed. The restraint device has a pivot member with a hooking member pivotable between an upwards operative position and a downwards inoperative position. The device also has springs fo... | 08/27/2002 |
| 6371714 | Vehicle restraint and method for modifying the same A vehicle restraint comprising a base member (e.g., a track), a carriage movably mounted to the base member, and a restraining member (e.g., a pivotable hook) mounted to the carriage and movable between and engaged position and a disengaged position. The ... | 04/16/2002 |
| 6322310 | Slope extension for vehicle restraints Two embodiments of a slope extension are disclosed herein for use with a vehicle restraint. In each embodiment, the vehicle restraint is adapted to releasably secure a parked trailer or other vehicle to an adjacent structure, such as a loading dock, and i... | 11/27/2001 |
| 6309165 | Leg restraint for a parked swap body container A repositionable brace helps support the legs of a swap body freight container parked at a truck loading dock. The brace can move from a retracted position to an engaged position. In the engaged position, one end of the brace is at least partially fixed r... | 10/30/2001 |
| 6238163 | Vehicle restraining device A device for restraining a truck from movement during the loading and unloading thereof while the truck is parked in a driveway in a loading dock. The truck restraining device has a lock assembly comprising a base and a locking arm pivotally mounted to th... | 05/29/2001 |
| 6190108 | Vehicle restraint A vehicle restraint employs a 4 bar linkage to lift a restraining member to a position that engages a vehicle thus restraining it at a loading dock. The linkage is upwardly biased to hold the unit in an engaging position and may be retracted by using any ... | 02/20/2001 |
| 6139242 | Vehicle restraint with security device A vehicle restraint for preventing movement of a vehicle from a parked position has a frame mountable at a loading dock to position a vehicle restraint mechanism operably coupled to the frame. The vehicle restraint mechanism has a restraining member with ... | 10/31/2000 |
| 6123496 | Automatic wheel chock A system for restraining a vehicle, such as a truck having a pair of separated tires mounted on an axle, positioned at a loading dock. A member is movable from a stored position near or under the loading dock to an operative position under the vehicle and... | 09/26/2000 |
| 6116839 | Slope extension for vehicle restraints Two embodiments of a slope extension are disclosed herein for use with a vehicle restraint. In each embodiment, the vehicle restraint is adapted to releasably secure a parked trailer or other vehicle to an adjacent structure, such as a loading dock, and i... | 09/12/2000 |
| 6106212 | Power-up vehicle restraint A vehicle restraint for a truck loading dock includes an actuator that rides up with a carriage to sense that a truck's ICC bar is within a predetermined region before fully extending a restraining member to engage the bar. The carriage and restraining me... | 08/22/2000 |
| 6089812 | Docking system for aligning and attaching a mobile loading/unloading unit to a machine A system for loading and unloading a machine tool provides a loading unit having a loading unit chassis. Two fixing devices each have a fixing piece disposed on the machine tool and having a receiving section, and a mating piece mounted on the loading uni... | 07/18/2000 |
| 6082952 | Automatic wheel chock system An automatic vehicle chock has a chock and a locking mechanism movable on a rail from a retracted position to a position where the chock is extended and held in position by the locking mechanism. A sensor moves with the chock to determine the position of ... | 07/04/2000 |
| 6077020 | Garbage or recyclable materials handling system A garbage or recyclable material handling system uses material containers each pivotally mounted to respective supports at desired locations for movement between a lower material receiving position and a partially inverted material discharge position. At ... | 06/20/2000 |
| 6033175 | Docking mechanism for aligning, coupling and securing a movable cart to a stationary workstation A device that aligns and couples a movable object to a destination includes fixed and movable coupling elements that interengage with one another. The fixed coupling elements are provided in a fixed location at the destination and the movable coupling ele... | 03/07/2000 |
| 6027303 | Non-counterweighted lift truck and method of operation A lift truck, especially for lifting boats, includes a self-propelled main frame having a pair of parallel rails extending in a fore-and-aft direction. The main frame is supported by front drive wheels and rear castor wheels. A mast is movable forwardly a... | 02/22/2000 |
| 5964572 | Vehicle restraint Vehicle restraint including a support mounted adjacent a loading structure. A carriage is supported from the support and has a generally horizontal portion extending over the roadway, the horizontal portion being operatively engageable with the vehicle ba... | 10/12/1999 |
| 5959868 | Arrangement for distributing articles for dispatch In order to increase the efficiency of an arrangement for distributing articles for dispatch with a distributing conveyor, a transfer device is proposed. The distributing conveyor is used to deliver the articles for dispatch to collecting containers that ... | 09/28/1999 |
| 5941672 | Rack return assembly Racks (20) supported on a transfer cart (38) in a decontamination area (18) are loaded with contaminated articles. The carts are wheeled to a washer (14) into which the racks of contaminated articles are placed for washing. After washing, the racks are re... | 08/24/1999 |
| 5934857 | Automatic wheel chock system A chocking device for securing a vehicle at a loading dock having a guide rail mountable to a driveway and a carriage movable on the guide rail. A drive mechanism, which may be hydraulic or electric is employed to advance the carriage from a stored positi... | 08/10/1999 |
| 5927928 | Wheel chocking device A loading dock having a dock face, a driveway positioned adjacent to the dock face, a wheel chock positioned above the driveway for movement relative to the driveway, and a power mechanism interconnected with the chock to provide power to the chock. The p... | 07/27/1999 |
| 5882167 | Locking mechanism for a vehicle restraint A vehicle restraint is provided for releasably securing a parked vehicle to an adjacent structure. The vehicle restraint includes a carriage assembly which is adjustably vertically mounted to the adjacent structure and a restraining member which is pivota... | 03/16/1999 |
| 5803701 | System and method for conveying cargo containers through environmentally controlled enclosures System (10) for automatically conveying photosensitive cargo containers (15) through a storage compartment (14) of a vehicle, preferably a trailer (12) and selective environmentally controlled enclosures (32,40,42) comprises a conveyor device (18) positio... | 09/08/1998 |
| 5762460 | Truck leveler A loading dock having a truck leveler for allowing the truck to be positioned at different heights. The loading dock includes a dock surface, a driveway extending from the dock surface and positioned at a level below the dock surface, and a ramp movably i... | 06/09/1998 |
| 5743697 | Automatic wheel chock A system for restraining a vehicle, such as a truck having a pair of separated tires mounted on an axle, positioned at a loading dock. A member is movable from a stored position near or under the loading dock to an operative position under the vehicle and... | 04/28/1998 |
| 5709518 | Automatic wheel chock system A chocking device for securing a vehicle at a loading dock having a guide rail mountable to a driveway and a carriage movable on the guide rail. A drive mechanism, which may be hydraulic or electric is employed to advance said carriage from a stored posit... | 01/20/1998 |
| 5683219 | Mechanical truck restraint A mechanical track restraint that can be mounted to a loading dock without any modification whatsoever to the loading dock or to the concrete pad that is poured in front of the loading dock on which a truck sits during the loading process. The mechanical ... | 11/04/1997 |
| 5645390 | System and Method for conveying cargo containers through environmentally controlled enclosures System (10) for automatically conveying photosensitive cargo containers (15) through a storage compartment (14) of a vehicle, preferably a trailer (12) and selective environmentally controlled enclosures (32,40,42) comprises a conveyor device (18) positio... | 07/08/1997 |
| 5582498 | Wheel activated vehicle restraint A wheel-actuated vehicle restraint device is provided for restraining at least one wheel of a vehicle during loading and unloading thereof. The vehicle restraint comprises a lock assembly comprising an actuation assembly for initially engaging the wheel o... | 12/10/1996 |
| 5564340 | Coke oven rail car with drive control system for positioning the car and door extractor which compensates for thermal distortion of oven jambs A coke oven door extractor is mounted on the rail car and includes door engaging supports movable in individually differing amounts relative to a plane parallel to and including the door jamb and a door jamb height axis of symmetry and movable vertically,... | 10/15/1996 |
| 5553986 | Indirect lock and lock release mechanism An indirect locking and lock release mechanism is provided that permits remote actuation of the lock release function and automatic reset of the locking function in a chamber. Linear actuation of a push rod from a transfer platform causes linear actuation... | 09/10/1996 |
