Check valve and booster shell

Details Check valve and booster shell Check valve and booster shell

1990-08-09

1992-06-02

Look, Edward K.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91376R, 13751215, 137854, F15B 910

Patent

active

051177382

ABSTRACT:
A brake booster (12) and check valve (36) wherein the housing (38) of the check valve (36) has a plurality of legs (52, 52'. . . 52.sup.N) with a disc (56) located thereon. The legs (52, 52'. . . 52.sup.N) which extend through slots (55, 55'. . . 55.sup.N) in the shell (30) of the brake booster (12) have tabs (54, 54'. . . 54.sup.N) that lock the housing (38) to the shell (30). The disc (56) has an annular rib (58) which engages the shell (30) to form a seal to prevent air from entering chambers (24, 40). The housing (38) is connected to a source of vacuum and a flapper (60) positioned over a plurality of openings (32, 32'. . . 32.sup.N) in the shell (30) to allow vacuum in the chamber (40) to evacuate air from the brake booster (12).

REFERENCES:
patent: 3314446 (1967-04-01), Saunders
patent: 4756333 (1988-07-01), Heffner et al.
patent: 4763689 (1988-08-01), Heffner et al.

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