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:
May. 04, 2004
Filed:
Feb. 15, 2002
Jürgen Schnatterer, Wolfschlugen, DE;
Festo AG & Co., Esslingen, DE;
Abstract
A vacuum producing means having a housing ( ) with an inlet connection ( ) and a suction connection ( ) arranged opposite to same. The housing ( ) comprises a suction nozzle means ( ) and a gage pressure pulse means ( ) arranged alongside same with the same alignment, for producing a fluid gage pressure pulse to be delivered into the suction space. The gage pressure pulse means ( ) comprises a switching valve ( ) combined with a pressure plenum ( ), the valve member of the switching valve being so driven in a manner dependent of the differential thereat that the pressure plenum is either connected fluidwise with the inlet connection ( ) or with the suction connection ( ).