Shock absorbing device for mooring and towing applications

Details Shock absorbing device for mooring and towing applications Shock absorbing device for mooring and towing applications

2000-05-10

2000-12-12

Swinehart, Ed

Ships

Tension relievers

Cable

267 71, 1142302, 114253, F16G 1100

Patent

active

06158374&

ABSTRACT:
A shock absorber device is provided for use in absorbing sea surges in mooring and marine towing applications at sea. The device includes a unitary anchor member disposed in a housing. The anchor member includes a rod having an eyelet at one end thereof for attachment to a shackle and a plurality of laterally extending flange members spaced along the length thereof for securing the member in the housing. A unitary piston member, including a rod including a flange or piston plate at one end thereof and an eyelet at the opposite end, is mounted in the housing so as to enable rotation of the piston member about the axis of the rod of the piston member. A coil spring surrounds a portion of the rod of the piston member. The piston member and coil spring are received in a cavity in the housing such that a first end of the coil spring abuts the flange of the piston member and the opposite end of the coil spring abuts an inwardly facing end wall of the cavity. With this arrangement, a pulling force of sufficient magnitude exerted on said rod will cause compression of the coil spring by the flange of the piston member to produce dampening of the pulling force.

REFERENCES:
patent: 202522 (1878-04-01), Clark
patent: 483762 (1892-10-01), Crippen
patent: 3610606 (1971-10-01), Andrews
patent: 4627375 (1986-12-01), Davis et al.
patent: 4681303 (1987-07-01), Grassano
patent: 5158270 (1992-10-01), Lin
patent: 5307753 (1994-05-01), Besonen, Sr. et al.
patent: 5694879 (1997-12-01), Taylor

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