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:
Jan. 18, 2000
Filed:
Jul. 30, 1998
Applicant:
Inventors:
David A Smith, Dallas, TX (US);
John D Crutcher, Dunedin, FL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L / ;
U.S. Cl.
CPC ...
15304 ; 15302 ; 15321 ; 15353 ; 96243 ; 261118 ;
Abstract
A system for cleaning building ductwork utilizing the equipment generally used to clean carpets. The system utilizes the vacuum unit and liquid waste tank from a carpet cleaning system. A flexible hose runs between the waste tank and the building ductwork. A water injection system is connected to the hose and is used to spray a stream of water into the air flowing through the flexible ductwork which will entrap any particles contained therein. The 'dirty' water flowing out of the hose will flow to the waste tank for collection and disposal.