Bump stop

Land vehicles – Wheeled and runner – Retracting wheel or runner

Reexamination Certificate

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Details

C280S124170, C180S209000, C440S012500, C267S234000, C267S242000

Reexamination Certificate

active

06994358

ABSTRACT:
Bump stop for an amphibious vehicle suspension having a member selectively movable between an operating position, and an inoperative position. This allows the suspension to retract road wheels along locus for conversion to marine mode. Bump stop free end may be moved by filling cavities with pressurized fluid. Alternatively, the entire bump stop may be rotated on a pivot by a hydraulic cylinder, an electric solenoid, manually or by any other mechanical means. Alternatively, the movable member may be a position in a cylinder, withdrawn against a return spring by hydraulic pressure, and may act against resilient snubber on the vehicle suspension. Bump pad has a curved undersurface, allowing the bump stop to be bent out of the way when the suspension is lowered.

REFERENCES:
patent: 2784424 (1957-03-01), Southerland
patent: 3227123 (1966-01-01), Voight
patent: 3362373 (1968-01-01), Mycroft
patent: 3421472 (1969-01-01), Oberg
patent: 3653332 (1972-04-01), Olson, Sr. et al.
patent: 3765368 (1973-10-01), Asbeck
patent: 3771812 (1973-11-01), Pierce et al.
patent: 3779574 (1973-12-01), Ow
patent: 3831210 (1974-08-01), Ow
patent: 4958584 (1990-09-01), Williamson
patent: 5058917 (1991-10-01), Richardson
patent: 5192101 (1993-03-01), Richardson
patent: 5536036 (1996-07-01), Ehrlich
patent: 22568215 (1986-01-01), None
patent: 2 134052 (1984-08-01), None
patent: WO 93/16923 (1993-08-01), None
patent: WO 95/23074 (1995-08-01), None
International Search Report dated Jun. 2, 1993.
Search Report of the United Kingdom dated Feb. 8, 2001.

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