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:
Nov. 01, 1988
Filed:
Nov. 12, 1986
Applicant:
Inventor:
Richard A Weaver, Linden, MI (US);
Assignee:
Automated Manufacturing Systems, Inc., Fenton, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65G / ;
U.S. Cl.
CPC ...
198789 ; 198619 ; 310 13 ; 310166 ;
Abstract
A power and free roller conveyor has a plurality of spaced rollers defining a conveyor path and to each of which is fixed a drive that comprises the secondary of a linear induction motor. The primary of the linear induction motor is positioned adjacent the drivers to enable an interaction of magnetic flux and current resulting from the propagation of a magnetic wave along the primary to cause the drivers and the rollers to rotate. The speed, torque, and direction of rotation of the rollers can be controlled by a voltage and frequency control unit.