U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Truck restraint

Patent 4946330 Issued on August 7, 1990. Estimated Expiration Date: Icon_subject November 1, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Work handling apparatus
Patent #: 4016989
Issued on: 04/12/1977
Inventor: Furnari

Device for releasably securing one unit against a second unit
Patent #: 4191503
Issued on: 03/04/1980
Inventor: Neff ,   et al.

Device for releasably securing a vehicle to an adjacent support
Patent #: 4208161
Issued on: 06/17/1980
Inventor: Hipp ,   et al.

Releasable locking device
Patent #: 4282621
Issued on: 08/11/1981
Inventor: Anthony ,   et al.

Releasable locking device
Patent #: 4379354
Issued on: 04/12/1983
Inventor: Hahn ,   et al.

Releasable locking device
Patent #: 4472099
Issued on: 09/18/1984
Inventor: Hahn ,   et al.

Truck locking device
Patent #: 4555211
Issued on: 11/26/1985
Inventor: Metz

Vehicle restraint
Patent #: 4560315
Issued on: 12/24/1985
Inventor: Hahn

Truck restraint system
Patent #: 4630989
Issued on: 12/23/1986
Inventor: Davey

Hydraulic system for a mobile transport vehicle that supports and positions a load relative to a docking structure
Patent #: 4671728
Issued on: 06/09/1987
Inventor: Clark ,   et al.

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Inventors

Assignee

Application

No. 265529 filed on 11/01/1988

US Classes:

414/401, Means serves to align wheeled vehicle and load receiving or relinquishing structure14/71.1, Attached414/917HANDLERS UTILIZING PARALLEL LINKS

Examiners

Primary: Spar, Robert J.
Assistant: Katz, Robert S.

Attorney, Agent or Firm

Foreign Patent References

  • 1055566 SU 11/21/1983

International Classes

B65G 067/02
B65G 069/00

Foreign Application Priority Data

1988-09-14 CA

Abstract

Apparatus for restraining movement of a parked vehicle away from a loading dock comprises an upwardly extending block which is movable from a lower position to an upper position which captures a portion of the parked vehicle to restrain movement of the parked vehicle away from the loading dock. This apparatus provides a safety lock system to ensure that during loading and unloading of a parked vehicle the vehicle cannot accidentally pull away from the loading dock which would result in injury to the forklift truck operator. A linkage mechanism is provided which provides for the raising and lowering of the block. A drive mechanism raises and lowers the linkage in determining the lower an upper positions of the block. The linkage comprises two spaced-apart linked arms which may be in the form of a parallelogram linkage arrangement.

Other References

  • Levelators, The Rotary Lift Company, 1947, p. 1
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