Linear motion absorber with synthetic components

Details Linear motion absorber with synthetic components Linear motion absorber with synthetic components

1995-10-11

1998-12-08

Graham, Matthew C.

Brakes

Internal-resistance motion retarder

Resistance alters relative to direction of thrust member

267 34, 267 6411, 267 69, 267226, 16 67, B60R 706

Patent

active

058457496

ABSTRACT:
A linear motion absorber for damping linear movement utilizing a cylinder having a reciprocal piston located therein. The cylinder and piston are molded of synthetic plastic and the piston is of an extended length and a diameter slightly less than the inner diameter of the cylinder as to be self aligning therewith and includes a homogeneous annular lip seal to produce unidirectional sealing. The piston stem or rod is also of a synthetic plastic material and in the rigid stem embodiment homogeneously extends from the piston. The piston rod may also consist of a flexible synthetic strand attached to the piston for transmitting tension forces, and a compression spring within the cylinder acting upon the piston will position the piston to a retracted position. The open end of the cylinder is sealed by a removable cap entirely formed of a synthetic plastic material which may be readily affixed to the cylinder to produce a closed circuit during damping.

REFERENCES:
patent: 909074 (1909-12-01), Flynn
patent: 1204253 (1916-11-01), Diercks
patent: 3123351 (1964-03-01), Graber
patent: 4110868 (1978-09-01), Imazaike
patent: 4382311 (1983-05-01), Watts
patent: 4483044 (1984-11-01), Johnston et al.
patent: 4681303 (1987-07-01), Grassano
patent: 4792127 (1988-12-01), Kortgen
patent: 4856625 (1989-08-01), Oshida
patent: 5333845 (1994-08-01), Seiichi

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