Brakes – Internal-resistance motion retarder – Including protective shield for retarder
Patent
1989-07-17
1990-11-13
Graham, Matthew C.
Brakes
Internal-resistance motion retarder
Including protective shield for retarder
267220, B60G 702
Patent
active
049695428
ABSTRACT:
A dust shield for use with a damper includes a hollow cylindrical body having first and second ends. A plurality of convolutions are provided in the outer surface of the body between its ends. A plurality of inwardly projecting fingers are provided in the body portion. Each finger includes a centering rib extending to the damper to prevent shifting of the dust shield during use, thereby eliminating contact between the dust shield and a surrounding coil spring or a bump plate mounted on the damper. Additionally, each finger includes a retaining wall. The bump plate engages the retaining wall during rebound of the damper to pull the dust shield to its approximate original length to provide full-time cover of a piston rod of the damper.
REFERENCES:
patent: 2708112 (1955-05-01), Seddon et al.
patent: 3844314 (1974-10-01), Chadwick
patent: 3907080 (1975-09-01), Chadwick
patent: 4114460 (1978-09-01), Oto
patent: 4235426 (1980-11-01), Sullivan, Jr. et al.
patent: 4462608 (1984-07-01), Lederman
patent: 4529213 (1985-07-01), Goodman
patent: 4568067 (1986-02-01), Iwata
patent: 4771996 (1988-09-01), Martinez, Jr. et al.
Athmer Merle J.
Keller, Jr. Chris F.
General Motors Corporation
Graham Matthew C.
Tucker A. Michael
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