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:
Mar. 23, 2004
Filed:
May. 16, 2002
Applicant:
Inventors:
Yen-Chieh Mao, Kaohsiung, TW;
Ching-Huan Tseng, Hsinchu, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B 7/04 ;
U.S. Cl.
CPC ...
F15B 7/04 ;
Abstract
A variable ratio of force-enlargement master cylinder for a braking system is described. The variable ratio of force-enlargement master cylinder has a cylinder, an outer piston, and an inner piston, in which comprise a plurality of cavities and openings therein. When a force is uniformly applied to the variable ratio of force-enlargement master cylinder, the flow rate of the fluid is preferably changed into a predetermined value by incorporating the cavities and openings located on the cylinder, the outer piston, and the inner piston in a suitable time.