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:
Oct. 17, 1989
Filed:
Mar. 20, 1989
Applicant:
Inventor:
James C Poor, E. Granby, CT (US);
Assignee:
The Spencer Turbine Company, Windsor, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55276 ; 553412 ; 55335 ; 55465 ; 55467 ; 417312 ;
Abstract
A vacuum producing apparatus includes a bag separator having a cylindrical housing containing a plurality of filter bags supported by and extending between upper and lower bag heads. A radially disposed inlet conduit projects through the wall of the separator below the lower gab head to direct incoming air toward an expendable target plate releasably retained in depending relation to the lower bag head. A multi-stage blower connected to the separator evacuates air from it and has a mounting base which comprises a silencer and defines an exhaust passageway communicating with the interior of the blower casing for discharging air from and below the casing.