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:
Mar. 03, 1987
Filed:
Aug. 26, 1985
Verle L Rice, Cass County, MO (US);
Robert P Rafferty, Cass County, MO (US);
Richard A Keener, Cass County, MO (US);
R. B. Industries, Inc., Pleasant Hill, MO (US);
Abstract
A precision woodworking saw having a variable speed drive mechanism which drives a saw blade carried on a reciprocating C arm. An electric motor has a drive shaft carrying a split drive pulley which drives a split driven pulley through a V-belt. The driven pulley is mounted on a driven shaft which reciprocates the C arm through an eccentric drive arm. The pulley sections of the split pulleys are movable toward and away from one another to vary the pitch of each pulley and its effective diameter. An adjustment knob can be turned to adjust both pulleys simultaneously to vary the speed ratio between the driven shaft and drive shaft as desired to control the speed at which the saw blade is driven.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile