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Us Patents

Balanced Torsional Deflection Of Flexible Shafts In Either Direction Of Rotation

US Patent:
4185473, Jan 29, 1980
Filed:
Jun 21, 1978
Appl. No.:
5/917763
Inventors:
Robert C. Troost - Staten Island NY
Assignee:
Pennwalt Corporation - Phila PA
International Classification:
F16C 102
US Classification:
64 2R
Abstract:
Remote control flexible shaft having a balanced torsion deflection in either direction of rotation when subjected to torsional loads. Balanced torsional deflection provides the same "feel" of the control element, whether a wheel, valve, knob, or the like, and the same "lag" period before response of the controlled element, regardless of direction of rotation of the control element. The shaft employs interconnected equal lengths of conventional flexible shafting of identical construction except for the opposite lay of the wires comprising each respective layer of each length. Specific torsional deflection characteristics may be obtained by varying lengths and/or construction of the two flexible shaft lengths, or more than two lengths of shafting may be employed.

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