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.

Date of Patent:
Jun. 12, 1990

Filed:

Feb. 15, 1989
Applicant:
Inventors:

Rickey S Lutterbach, Michigan City, IN (US);

Jeffrey A Granacki, Michigan City, IN (US);

Assignee:

Control Resource Systems, Inc., Michigan City, IN (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55356 ; 55467 ; 55490 ; 55493 ;
Abstract

An air purification apparatus has an inner housing with an air inlet and an air outlet. Preferably the inner housing is fabricated as a one-piece molded plastic structure. A filter is mounted within the inner housing. A blower is mounted within the inner housing for drawing air in through the inlet, through the filter and out through the outlet. An outer housing is secured substantially about the inner housing with portions thereof spaced from the inner housing and having an air inlet and an air outlet communicating respectively with the air inlet and the air outlet of the inner housing. In the preferred embodiment, the outer housing is fabricated as a one-piece structure of molded plastic material, with integrally molded vertical reinforcing ribs, stackable detents on the top and the bottom of the housing, and a recessed integral ring about the outlet for storing an electrical cord. Closures are provided for the inlet and the outlet of the outer housing to seal the housing when the apparatus is not in use.


Find Patent Forward Citations

Lutterbach, Rickey. (1990). Air purification apparatus (U.S. Patent No. 4932988). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4932988

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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