Automotive brake light switch

Electricity: circuit makers and breakers – Special application – Actuated concurrently with operation or use of art device

Reexamination Certificate

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Details

C200S0830SA, C200S0830SA, C303S114300, C091S37600A

Reexamination Certificate

active

08053690

ABSTRACT:
An automotive brake light switch mounted on a brake booster includes a housing defining a constant pressure chamber and a variable pressure chamber partitioned by a diaphragm, with a first through-hole of the housing, a second through-hole formed in the diaphragm and an air intake valve to allow the constant pressure chamber to selectively communicate with the variable pressure chamber, wherein the air intake valve is fitted into the second through-hole and configured to selectively open or close the first through-hole in response to a brake pedal, the brake light switch apparatus having a switch body, a switch rod slidably mounted to the switch body so as to turn on/off a switch of the switch body, wherein a protruding length of the switch rod is changeable by the air intake valve, and a coupling portion coupling the switch body to the housing through the first through-hole.

REFERENCES:
patent: 4220836 (1980-09-01), Hersey
patent: 4297550 (1981-10-01), Leighton
patent: 4626636 (1986-12-01), Hickman et al.
patent: 5141295 (1992-08-01), Burgdorf et al.
patent: 5207770 (1993-05-01), Fecher
patent: 5992947 (1999-11-01), Tsubouchi
patent: 2010/0024637 (2010-02-01), Jang
patent: 60-206765 (1985-10-01), None
patent: 05-077714 (1993-03-01), None
patent: 2003-104188 (2003-04-01), None
patent: 20-0227704 (2001-10-01), None
patent: 10-0329527 (2002-10-01), None
patent: 10-0486662 (2005-05-01), None
patent: 10-0867719 (2008-11-01), None

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