Tandem brake booster

Details Tandem brake booster Tandem brake booster

1992-02-28

1993-08-10

Look, Edward K.

Motors: expansible chamber type

Plural relatively movable or rigidly interconnected working...

91376R, 91533, 92128, F15B 1100

Patent

active

052339114

ABSTRACT:
A method of manufacturing a tandem brake booster wherein a rearwall is derived from the separation plate of a single brake booster. The separation plate is modified by creating a passageway therethrough and using splines on the hub which are mated with keyways in a cylindrical body that extends from a front movable wall to assure that passages between the resulting front and rear chambers are aligned. A return spring holds a seal between the cylindrical body and hub to assure cross communication does not occur between the passageways. Thereafter, any operational pressure differential created during a brake application is directed into the development of an output force to effect a brake application.

REFERENCES:
patent: 3289547 (1966-12-01), Kytta
patent: 3517588 (1970-06-01), Kytta
patent: 3813992 (1974-06-01), Brown
patent: 4409885 (1983-10-01), Reinhartz et al.
patent: 4953446 (1990-09-01), Fecher et al.
patent: 4970939 (1990-11-01), Fecher et al.
patent: 5076142 (1991-12-01), Steer et al.
patent: 5161453 (1992-11-01), Yared et al.

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