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:
Jan. 25, 1994
Filed:
Feb. 24, 1992
Applicant:
Inventor:
Heinrich Heidt, Neckarsteinach, DE;
Assignee:
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73159 ; 374-4 ;
Abstract
A method of monitoring a web for tears occurring inside a dryer of a web-fed printing machine includes measuring the temperature of a running web by a thermal monitoring device in the proximity of an inlet to the dryer, and actuating a safety device when a sudden increase in the temperature of the web is detected by the thermal monitoring device; and device for performing the method.