B - Operations – Transporting – 60 – D
Patent
B - Operations, Transporting
60
D
280/151
B60D 1/00 (2006.01) B60D 1/18 (2006.01) B60D 1/50 (2006.01) B61G 9/04 (2006.01)
Patent
CA 2002386
Two way shock proof and absorbing towing coupling, comprising two opposite planar chain holders, each holder having at least two equally spaced lugs; at least four pairs chain means, each pair comprising two chain sections, each chain section having a plate link and a joint connected by pin, two ends of each pair of said chain means being connected with the opposite lugs on said opposite planar chain holders by pins respectively; two towing frames for connecting with two neighboring vehicles, each frame having at least two arms, each of said arms being connected pivotely with another end of each chain section in each pair of chain means, at least one shock proof bearing spring provided between two planar chain holders and said spring being coaxial with the two towing frames, the two ends of said spring abutting against inner surface of said planar chain holders respectively, and a piston sleeve means. This towing coupling may be used for connecting combination vehicles of water or land transportation so as to increase efficiency and benifit of transportion and service life and safety of transportation facilities.
Gowling Lafleur Henderson Llp
Zhao Zhendong
LandOfFree
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