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:
Apr. 06, 1993
Filed:
Jan. 13, 1992
Alwin Stegmaier, Charleston, SC (US);
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An improve the pump including a reciprocal piston pump having a pump piston, guided longitudinally displaceable in a displacement chamber. An outlet valve for the admission of pressure means and a valve for the outflow of pressure means is associated with the displacement chamber. The outlet valve is embodied as a cup-shaped sleeve, having on the outflow side a sealing lip of an elastomeric material, which cooperates with a cylindrical sealing face. The outlet valve is distinguished by low opening pressure, reduced noise when closing and reduced machining effort. The reciprocating piston pump (10) is intended for use in hydraulic brake installations of motor vehicles with ABS systems.