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. 23, 2015
Filed:
Nov. 18, 2010
Applicant:
Walter Schaaf, Freudenstadt-Gruental, DE;
Inventor:
Walter Schaaf, Freudenstadt-Gruental, DE;
Assignee:
J. SCHMALZ GMBH, Glatten, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25B 11/00 (2006.01); F04F 5/42 (2006.01); B05B 7/12 (2006.01); F04F 5/16 (2006.01); B65G 47/91 (2006.01); F04F 5/54 (2006.01);
U.S. Cl.
CPC ...
F04F 5/16 (2013.01); B65G 47/91 (2013.01); F04F 5/54 (2013.01);
Abstract
The invention relates to a compressed-air-operated vacuum generator or vacuum gripper having at least two vacuum units, wherein each vacuum unit has a suction chamber, an intake opening which opens into the suction chamber, an outflow opening which opens out of the suction chamber, and at least one drive air opening which opens into the outflow opening between the intake opening and the outflow opening, and wherein the vacuum units operate on the basis of at least two different principles (Venturi, Bernoulli, Coanda, vortex, etc.) for generating a negative pressure.