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. 30, 1990
Filed:
May. 22, 1989
Applicant:
Inventor:
Roland Grunder, Vordemwald, CH;
Assignee:
Grapha-Holding AG, Hergiswil, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
270 56 ; 270 54 ; 270 58 ; 271263 ;
Abstract
The thickness of successive sheets which are delivered by the feeders of a gathering machine to a collating conveyor are monitored and a computer which is associated with each feeder calculates the extent of deviation of the monitored thickness from an acceptable value. Signals which are generated by the computers in the event of excessive deviation are used to arrest the motor of the gathering machine and/or to expel the respective groups of sheets from the collating conveyor. Each computer is caused to calculate a reference value on the basis of monitored thicknesses of n successively delivered sheets whose thicknesses are within the acceptable range.