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:
Jan. 08, 2002
Filed:
May. 26, 2000
Yuji Nakayasu, Rochester Hills, MI (US);
Continental Teves, Inc., Auburn Hills, MI (US);
Abstract
To provide for non-powered evacuation and filling of an anti-lock brake system with integrated control units, a check valve is placed between the suction side of the ABS pump ( ) and the wheel brake ( ). The check valve ( ) enables evacuation and filling of the brake system without energizing electro-magnetically operated, normally closed valves at the place of vehicle assembly. With the check valve ( ) in its suggested position, a release of the brake pedal after a brake operation cannot cause trapping of vacuum as previously observed in the pressure relief line as the pressure on the side of the brake line remains above atmospheric pressure and keeps the check valve closed.