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:
Aug. 14, 2001
Filed:
Sep. 14, 1999
Yuzi Wachi, Saitama, JP;
Toshiaki Fukushima, Saitama, JP;
Jidosha Kiki Co., Ltd., Tokyo, JP;
Abstract
In a fluid pressure booster, an input rod,and a valve member,are stroked forward during the operation so as to cause a control valve to be switched over. The atmosphere is introduced into a working pressure chamber,via the control valve,and a power piston,then operates to make a negative pressure booster,produces an output from a output rod,. As the atmosphere in the working pressure chamber,acts backward on a control piston,at this time, the valve member,will not be stroke further. However, the output rod,is continuously stroked forward and kept producing the output. Due to the stop of stroke of the valve member,, the stroke of the input rod,is suppressed and set at an extremely short stroke. When the negative pressure falls, the negative pressure booster,produces an output from the output rod,since the input rod,, the valve member,and the output rod,integrally give a stroke forward.