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. 02, 2003
Filed:
May. 25, 2000
Applicant:
Inventor:
Lewis Illingworth, Kensington, NH (US);
Assignee:
Avionic Instruments, Inc., Avenel, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03G 1/00 ; B65H 7/548 ;
U.S. Cl.
CPC ...
F03G 1/00 ; B65H 7/548 ;
Abstract
An improved elastic motor is disclosed having a constant torque characteristic. In contrast to earlier motors which use springs wound on spools, the present invention utilizes a reel with elastic stretched to its maximum tension. Each unit length of the elastic is allowed to relax back to its normal state while generating work in a process that will continue until the wheel is fully unwound. The present invention will ease the design of mobile devices and the like by providing a power source having a predictable, stable, and constant torque output characteristic.