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. 04, 1994
Filed:
May. 10, 1993
Applicant:
Inventor:
Richard L Blakley, Pfafftown, NC (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
95 90 ; 95141 ; 95285 ; 96135 ; 96153 ; 55497 ; 55521 ; 55524 ;
Abstract
An air filter is provided for removing gaseous impurities from the air such as formaldehyde, acetaldehyde, acrolein, acetone and other chemical compounds. The filter utilizes a plurality of corrugated base sheets which are stacked or nestled and which have entrapped carbon dust for absorption of impurities. The corrugated structure provides very little pressure drop as the air passes through available channels and large, powerful fans are not necessary to move air therethrough.