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:
Apr. 17, 2001
Filed:
Nov. 12, 1999
Applicant:
Inventors:
Tamara Price, Webster City, IA (US);
Douglas E. Johnson, Webster City, IA (US);
Mitch Koestner, Webster City, IA (US);
Vern Cunningham, Aurora, CA;
Assignee:
White Consolidated Industries, Inc., Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L 5/00 ; F24F 7/007 ;
U.S. Cl.
CPC ...
A47L 5/00 ; F24F 7/007 ;
Abstract
A central vacuum cleaner system having a motor driven vacuum source which is selectively turned on or off. The central vacuum cleaner has an interface connector for establishing a connection between the central vacuum and an air exchanger. The interface connector is connected to be activated by the central vacuum when the motor is turned on so as to activate the air exchanger.