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:
Jun. 28, 1977
Filed:
Apr. 16, 1976
David G Fisher, Springfield, MO (US);
Robert G Gladden, Springfield, MO (US);
Dayco Corporation, Dayton, OH (US);
Abstract
A drive system is provided which comprises a single endless power transmission belt which has opposed driving portions defined by a flat driving portion and an oppositely arranged driving portion which has a plurality of projections therein and wherein such belt operatively associates with a driving sheave and a plurality of driven sheaves with the driving sheave and at least one of the driven sheaves each having a plurality of grooves therein each defined by an associated channel-like surface when viewed in cross section and at least another of the driven sheaves having a right circular cylindrical surface whereupon the flat driving portion of the belt operatively engages the right circular cylindrical surface and the projections of the oppositely arranged driving portion are received in grooves of the grooved sheaves and operatively engage the channel-like surfaces. A belt tensioning device is also provided and maintains a controlled tension on the belt during operation thereof.