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. 24, 1984
Filed:
Mar. 15, 1982
Edward T Rude, Fairfield, CT (US);
Jules Nisenson, Stamford, CT (US);
Martin Waine, Riverside, CT (US);
General Clutch Corp., New York, NY (US);
Abstract
A bi-directional spring clutch having a cylindrical input element mounted on a cylindrical output element, with a wrap spring disposed between them. A control element, in the form of a cylinder, is rotatably mounted on the input element for assuming one of three discrete positions relative to the input element. A key on the control element extends through a window of the input element and is disposed between the ends of the wrap spring. When the control element is in either of its extreme positions, turning of the input element controls tightening of the spring and the transmission of torque, the direction of torque transmission depending upon the position of the control element. Rotation of the input element in the opposite direction results in the key unwrapping the spring so that there is not torque transmission. When the control element is in its middle position, the key bears against neither end of the spring, and torque is transmitted in both directions of rotation of the input element.