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:
Apr. 05, 1988
Filed:
Jun. 17, 1986
Clarence D John, Jr, Penn Hills Township, Allegheny County, PA (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
An improved tube drive apparatus includes drive units disposed in respective orientations angularly displaced about and radially extending from a longitudinal centerline of a tube to be driven by the drive units and a drive train drivingly coupling a motor to the drive units for transmitting driving motion thereto. Each drive unit includes an endless flexible drive belt, a pair of spaced rotatable members entraining the drive belt such that an end of the belt drivingly engages the tube for transmitting driving motion thereto. One rotatable member is drivingly coupled to the drive train and the other rotatable member is angularly adjustable relative to the one rotatable member and the centerline of the tube such that runs of the belt can be changed between generally parallel and criss-cross orientations for varying the motion of the tube produced by engagement of the belt from solely axial rotation to solely longitudinal movement and any combintion of the two motions therebetween. A ratchet screw is provided for adjusting the angular relationship between the two rotatable members and thereby the degree of twist in the drive belt and the direction of motion of the tube.