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.

Date of Patent:
Aug. 18, 1998

Filed:

Jul. 14, 1994
Applicant:
Inventors:

Charles C Cramer, New Holstein, WI (US);

Dale M Cherney, Howards Grove, WI (US);

Assignee:

Paper Converting Machine Company, Green Bay, WI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318 68 ; 318465 ; 318 46 ; 318 60 ; 361 51 ;
Abstract

A controller for detecting abnormal operating conditions of a continuous motion machine such as a packaging machine. The acceleration and velocity of motors for the various axes of the machine are examined by the controller and rapid deceleration or a more gradual deceleration to a lower velocity relative to a machine velocity are employed for stopping the machine when overloads in the form of jams or mechanical faults occur in moving parts of the machine. By using this system, machine overloads can be detected much earlier than by using conventional techniques, and as a result, damage resulting from overloads and nuisance tripping can be eliminated or greatly reduced.


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