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. 26, 1988
Filed:
Mar. 04, 1986
Applicant:
Inventors:
Melvyn T Fryer, Willenhall, GB;
John P Rogers, Coven, GB;
Assignee:
Dowty Boulton Paul Limited, Wolverhampton, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65G / ;
U.S. Cl.
CPC ...
198725 ; 198856 ; 226172 ;
Abstract
A frictional drive unit, suitable for effecting linear sliding movement of a structural member into a cantilevered position, includes a frame, at least two sprocket assemblies mounted in bearings in the frame and spaced apart with their rotational axes parallel to each other, and an endless track. This track comprises a plurality of articulated friction pads mounted upon the sprocket assemblies and drivingly engageable with the structural member. Reversible motor means is carried by the frame and is drivingly connected to at least one of the sprocket assemblies.