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:
Oct. 18, 1994
Filed:
Jan. 21, 1994
Applicant:
Inventor:
Joachim Maas, Bad Vilbel, DE;
Assignee:
Alfred Teves GmbH, , DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
3031161 ; 303 68 ; 303 72 ; 3031191 ; 303900 ; 3031151 ;
Abstract
An anti-lock hydraulic brake system provides a phase of pressure increase, a phase of pressure decrease as well as a phase in which the pressure is kept constant. To this end, an outlet valve and a selector valve are provided. The selector valve is not connected to the pressure side of the pump as is usual but to the suction side of the pump. This arrangement produces the advantage that the selector valve is disposed in the low-pressure area of the brake system thereby eliminating the occurrence of great pressure surges which result in the emission of noise.