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:
Sep. 18, 2001
Filed:
Dec. 09, 1999
Applicant:
Inventor:
Ralf Zitzelsberger, Marktoberdorf, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60T 8/40 ;
U.S. Cl.
CPC ...
B60T 8/40 ;
Abstract
The invention relates to a pump assembly for pumping brake fluid into a hydraulic slip-controlled vehicle brake system. To achieve a simple, compact construction of the pump assembly, the invention proposes embodying the pump assembly with an electromagnet which has a permanent magnet and is driven into an oscillating motion by being supplied with an alternating voltage; a moving part of the electromagnet is solidly connected to a tappet, both of whose ends form pistons of two piston pumps.