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:
Jan. 17, 2012
Filed:
Jun. 09, 2005
Applicant:
David Weill, Begnins, CH;
Inventor:
David Weill, Begnins, CH;
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 7/04 (2006.01); F04B 39/10 (2006.01); F04B 35/02 (2006.01); F04B 9/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device for difficult intervention in a closed enclosure, having an enclosure connected to the closed enclosure via a duct, a piston that can be moved by a motor, a geometry allowing a contact with the outside air when the piston occupies a certain position within the enclosure in order to generate a sudden release of pressure, and an outlet valve remaining closed when the piston increases the volume of the enclosure so as to cause the pressure reduction within the enclosures.