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:
Apr. 13, 1993

Filed:

Aug. 02, 1991
Applicant:
Inventor:

Werner Stengel, Langenzenn, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
400166 ; 4001573 ; 101 9303 ;
Abstract

The method for determining impact energy of a type element of the printing machine includes providing at least two different-length flight paths for the type elements by changing a distance between a resting position of the hammer and a place of impact of the type elements by at least one known amount; measuring at least two different hammer flight times corresponding to the at least two different-length flight paths of the type elements differing by the at least one known amount, each of the different hammer flight times being equal to a difference between a time of impact of one of the type elements and a time of onset of current flow in the hammer electromagnet; forming a difference between two different hammer flight times; dividing the known amount by which the two flight paths associated with the two different hammer flight times differ by the difference determined for the two hammer flight times to obtain a speed of the type element at impact and thus the impact energy of the type element. By comparing the actual value of the hammer flight time differences with a set value for the flight time differences the impact energy of a type element can be electronically controlled by controlling current flow in the hammer electromagnet.


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