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:
Dec. 27, 1988
Filed:
Mar. 24, 1987
Walter L Davis, Milton-Freewater, OR (US);
Joseph C Thomas, Aberdeen, SD (US);
Key Technology, Inc., Milton-Freewater, OR (US);
Abstract
A gear coupled, counter-rotating vibratory assembly is described for producing a fine tuned accurate linear vibratory motion without any twisting force component. The assembly has two parallel shafts that extend through a gear casing with cantilevered ends extending outward from both sides of casing. Large intermeshing gears are mounted on the shafts to rotate the shafts in counter-rotating synchronized motion. One of the gears has metal teeth and the other gear has plastic teeth. Identical eccentric weights are mounted on the cantilevered shaft ends outside of the gear casing at the same angular positions to generate the linear vibratory motion. The eccentric weights on the drive shaft are offset inward of the weights on the driven shaft. The radius of each of the eccentric weights is greater than the radius of the gear but less than the diameter of the gears.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile