Shock absorber for a remote-controlled model car

Details Shock absorber for a remote-controlled model car Shock absorber for a remote-controlled model car

2007-05-08

2007-05-08

Siconolfi, Robert A. (Department: 3683)

Brakes

Internal-resistance motion retarder

Resistance alters relative to direction of thrust member

C188S322150, C188S280000

Reexamination Certificate

active

11123026

ABSTRACT:
A shock absorber for a remote-controlled model car includes a sealing member fixed on the topside of a piston. The sealing member has two opposite flexible portions respectively matching with the flow-guiding holes of the piston, with flow gaps formed between the flexible portions and the upper outer sides of the piston. The flow gap, matching with the extent of an external force imposed upon the shock absorber, can be properly diminished or closed up. Each flexible portion is bored with a flow-adjusting hole smaller than and aligned to the flow-guiding hole of the piston for reducing the flow amount of liquid oil flowing through the flow-guiding hole. When pressed by different-extent external forces, the shock absorber can automatically adjust its buffering force to an excellent condition by adjustment of the flow-adjusting holes and the flow gaps.

REFERENCES:
patent: 2310570 (1943-02-01), Briggs
patent: 3831626 (1974-08-01), Peddinghaus
patent: 3984889 (1976-10-01), Blomgren
patent: 4372545 (1983-02-01), Federspiel
patent: 4765445 (1988-08-01), Komossa et al.
patent: 4809828 (1989-03-01), Nakazato
patent: 4961482 (1990-10-01), Pohlenz et al.
patent: 5078241 (1992-01-01), Ackermann et al.
patent: 5529154 (1996-06-01), Tanaka
patent: 6116388 (2000-09-01), Bataille et al.
patent: 7040468 (2006-05-01), Shinata

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