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:
Sep. 07, 1999
Filed:
Apr. 01, 1998
Applicant:
Inventor:
William L Kopko, Springfield, VA (US);
Assignee:
WorkSmart Energy Enterprises, Inc., Washington, DC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H / ; F16H / ;
U.S. Cl.
CPC ...
475-2 ; 475153 ; 622284 ;
Abstract
A variable speed drive for fans and pumps. An impeller is connected to a primary motor and an auxiliary motor/generator through a transmission. The transmission includes an epicyclic gearing system. The primary motor is run at constant speed. The auxiliary motor/generator is driven at variable speeds to control the speed of the impeller. The device may be used to retrofit an existing pump or fan system.
Kopko, William. (1999). Combined variable-speed drive and speed reducer for pumps and fans (U.S. Patent No. 5947854). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5947854
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile