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. 24, 1992
Filed:
Feb. 08, 1990
Applicant:
Inventor:
Namio Watanabe, Saitama, JP;
Assignees:
Akebono Brake Industry Co., Inc., Tokyo, JP;
Akebono Research and Development Centre Ltd., Saitama, JP;
Primary Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
3031 / ; 180197 ; 188356 ; 3031 / ;
Abstract
A vacuum booster for use with a vehicle anti-locking brake system to constitute a traction control system for preventing the slip operation of the vehicle driving wheel during starting or accelerating the vehicle, comprising a main opposing pressure chamber, an auxiliary opposing pressure chamber, a continuous pressure chamber, an operation rod and a pair of valves for independently controlling each of the main and auxiliary opposing pressure chambers so that control of the slip operation of the vehicle driving wheel can be performed without depressing the vehicle brake pedal.