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. 04, 1984
Filed:
Sep. 15, 1981
Applicant:
Inventor:
Frans Brouwer, Glencoe, IL (US);
Assignee:
ESAB, North America, Inc., Fort Collins, CO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B / ; H01G / ;
U.S. Cl.
CPC ...
250202 ; 361292 ; 361298 ;
Abstract
An optical pattern tracing system of the type having a tracing head with a scanner that projects a photocell onto a pattern-line with an improved manual resolver for providing control signals to drive the tracing head in an approach direction toward the pattern-line. The manual resolver is a capacitive resolver constructed of foil elements and an angularly adjustable coupling disc mounted directly on a printed circuit board that also carries much of the other control circuitry for the tracing system.