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. 16, 1990
Filed:
Feb. 06, 1990
Applicant:
Inventor:
Jon Wendling, Algonquin, IL (US);
Assignee:
Zip-Pak Incorporated, Northbrook, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ; B06B / ;
U.S. Cl.
CPC ...
318632 ; 318623 ; 318638 ; 226 16 ; 264 24 ; 4251742 ;
Abstract
An ultrasonic servo controller circuit is disclosed which is used to detect the edge of a web and adjust the web position as it is dispensed from a pay-off roll to packaging machinery. The circuit is utilized to control a motor which operates a linear actuator to 'de-oscillate' the web thereby providing the packaging machinery with a steady, non-oscillating sheet of material.