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. 15, 1990
Filed:
Jul. 21, 1989
Applicant:
Inventor:
William A Lane, Jr, Lake Arrowhead, CA (US);
Assignee:
W. A. Lane, Inc., San Bernardino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04F / ;
U.S. Cl.
CPC ...
98 58 ; 55267 ; 55512 ; 98 46 ; 981151 ; 98900 ;
Abstract
A solar powered passive air filter system for filtering an air space polluted with particulate matter includes an elongated vertical chimney located in association with the polluted air space and in a position to be exposed to solar radiation. A duct connects the polluted air space to the base of the chimney. A filter medium is located in association with the duct for removing air pollutants from an air stream. An air stream is created in the duct by an ascending air stream in the chimney. The ascending air stream in the chimney is maintained in response to exposure of the chimney to solar radiation.