The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 2004
Filed:
Oct. 10, 2002
Applicant:
Inventors:
Yoshiyasu Takasaki, Saitama-Ken, JP;
Hiroyuki Yamaga, Saitama-Ken, JP;
Assignee:
Bosch Automotive Systems Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B 1/316 ;
U.S. Cl.
CPC ...
F15B 1/316 ;
Abstract
A brake booster includes a valve mechanism , and a solenoid which operates the valve mechanism . When the solenoid is energized, a solenoid plunger and a valve seat member move rearward relative to a valve body , whereby the valve mechanism is operated to actuate the brake booster without depressing a brake pedal. A core member which forms a magnetic path for the solenoid is disposed rearward of the solenoid plunger so as to be movable axially of the valve body and so as to move in linked relationship with a valve plunger . The invention allows the size of the solenoid to be reduced.