Brake booster of tandem type
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 28, 1993
Grant Date -
N/A
app pub date -
Feb 5, 1992
filing date -
Feb 21, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An enclosed shell is divided by a center plate and a pair of front and rear diaphragms which are disposed on the opposite sides of the center plate into four chambers. A center body is fitted over a valve body which internally houses a valve mechanism. The center body slides relative to the central portion of the center plate with a seal member interposed therebetween. The inner periphery of the front diaphragm is inserted inside the center body, and is held between the valve body and the center body at a location rearward of the seal member, whereby the overall length of the brake booster is reduced.
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