Hydraulic shock absorber with adjusting of shock absorbing type

Details Hydraulic shock absorber with adjusting of shock absorbing type Hydraulic shock absorber with adjusting of shock absorbing type

2006-06-06

2006-06-06

Siconolfi, Robert A. (Department: 3683)

Brakes

Internal-resistance motion retarder

Position of thrust member relative to chamber

C188S285000, C188S315000, C188S322190

Reexamination Certificate

active

07055661

ABSTRACT:
A shock absorber (1) includes a compression chamber (2) in which a piston (3) moves along a path of travel from a near end to a far end. The chamber includes a constant force mode bleed orifice (10) adjacent the far end and a series of progressive force bleed orifices (9a–9e) at spaced intervals between the near and far ends. An adjustment cylinder (12) has sloping arcuate apertures (13a–13e). As the cylinder (12) is rotated, one of the arcuate apertures aligns with the constant force orifice or the apertures align with the progressive force orifices in full or in part.

REFERENCES:
patent: 984377 (1911-02-01), Kilgour
patent: 3598206 (1971-08-01), Hennells
patent: 3750856 (1973-08-01), Kenworthy
patent: 3782710 (1974-01-01), Selke et al.
patent: 3840097 (1974-10-01), Holley
patent: 4071122 (1978-01-01), Schupner
patent: 4298101 (1981-11-01), Dressell, Jr. et al.
patent: 4465166 (1984-08-01), Moore
patent: 4702355 (1987-10-01), Heideman
patent: 5598904 (1997-02-01), Spyche, Jr.

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