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:
Jun. 08, 1976
Filed:
Jun. 05, 1973
Wilhelm Hertfelder, Steinenbronn, DT;
Robert Bosch G.m.b.H., Stuttgart, DT;
Abstract
A tubular member is adapted to communicate with an intake manifold and combustion gas conduit of a combustion engine. A housing of the valve has an interior space and a slidable valve member normally extends across and blocks the interior of the tubular member, having a portion extending into the interior space of the housing. At least one flexible diaphragm subdivides the interior space into two chambers and is fixed to the portion of the valve member. One of the chambers communicates with the atmosphere. A first and a second conduit connect the other chamber with the manifold and with the atmosphere, respectively. An electromagnetic valve is operative for alternately connecting the other chamber with the first and with the second conduit, respectively.