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:
Oct. 09, 1990
Filed:
Sep. 13, 1989
Applicant:
Inventor:
Thomas H Falconer, Erie, PA (US);
Assignee:
Eriez Manufacturing Company, Erie, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65G / ;
U.S. Cl.
CPC ...
198761 ; 198769 ;
Abstract
A three mass vibratory conveyor including a base with an electromagnet, a tray supported on the base and a tuning weight. A first spring connecting the tray to the base, a second spring connecting the base to the tuning weight and a resilient support supporting the base to a support member. The mass of the tuning weight being adjustable to provide a system in which the base and tray are driven by the driver at a predetermined frequency and no relative motion takes place between the base and the tray.