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. 13, 2003
Filed:
Aug. 27, 2001
Applicant:
Inventor:
Peter Tell, Akersberga, SE;
Assignee:
Piab AB, Taby, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04F 5/00 ;
U.S. Cl.
CPC ...
F04F 5/00 ;
Abstract
Ejector type vacuum pump, comprising a rotationally symmetric ejector body ( ) arranged in a house to be contained in a vacuum chamber ( ) that extends axially and opens through a wall of the house, a dust filter ( ) running concentrically about the eject body comprising a tube shaped, porous filter body, a frame circumferentially enclosing the filter body so that the filter body and frame form a self containing unit that extends substantially about the whole length of the ejector body to be axially fixed by a muffler ( ) that is received in the opening of the vacuum chamber.