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. 23, 1999
Filed:
Mar. 03, 1998
Applicant:
Inventors:
Bruce E Hyllberg, Gurnee, IL (US);
Robert G Langley, Burlington, WI (US);
Assignee:
American Roller Company, Union Grove, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B / ; G03G / ; H01R / ; H05B / ;
U.S. Cl.
CPC ...
219469 ; 219216 ; 439 29 ; 439799 ; 439840 ;
Abstract
An electrical contact assembly for a roller (10) having at least one single-bevel end portion (13) has a first electrical contact formed by a thermally sprayed band (29) of a nickel alloy, a second electrical contact (30) formed by an annular contact structure (57, 37, 38, 30) assembled to the roller (10) and a bridging contact formed by an extension coil spring (33) which extends around the tapered end (24) of the roller (10) in a location where it will make bridging contact between the first electrical contact (29) and the second electrical contact (30) and provide spring pressure to maintain such contact.