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:
Feb. 10, 2015
Filed:
Jun. 22, 2010
David Leslie Adams, Bath, GB;
David Leslie Adams, Bath, GB;
Rotork Controls Limited, Bath, Avon, GB;
Abstract
An anti back-drive coupling () comprises an input () driveable about an axis A in a clockwise and anticlockwise direction in torque transmitting communication, via a mechanism, with an output () driveable about the axis by the input in either of the rotational directions, the mechanism including: a tube (), driveable by the input, carrying two cages () and () spaced along the axis A, each cage housing rollers () and () respectively; an output memberfor driving the output (), including two flattened formations () and () adjacent each cage in use, for engagement with the rollers () and () respectively; and a back-torque reaction freewheels () and () engageable with the rollers, for reacting back-torque transmitted through said output member () and into the rollers.