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. 13, 1987
Filed:
Jan. 16, 1985
Applicant:
Inventor:
John C Arechaga, Lansdale, PA (US);
Assignee:
Ametek, Inc., New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03G / ;
U.S. Cl.
CPC ...
185 45 ; 242 783 ; 267 59 ; 267156 ;
Abstract
A backwound pre-stressed flat spring motor and method of making the same having a pre-stressed spring element backwound on a central arbor within a cup wherein a portion of the spring element extends beyond the arbor wherein the initial turns of spring element backwound on the central arbor comprise alternating layers of the extended portion of the spring and the spring element resulting in increased initial torque when compared to a conventional backwound pre-stressed spring motor having the same construction otherwise.