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:
Apr. 14, 1992
Filed:
May. 29, 1990
Applicant:
Inventor:
Alan F Barney, Bethel, CT (US);
Assignee:
Baldwin Technology Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41F / ; B41F / ;
U.S. Cl.
CPC ...
101364 ; 101484 ;
Abstract
An apparatus for monitoring and controlling the level of the ink in the ink fountain of offset printing presses, using an ultrasonic transducer for measuring the distance between the ink and the transducer which includes a microprocessor system for calculating a time duration of an ink feed cycle to fill the ink fountain to a preset ink level and for generating an ink cycle control signal based on time duration data and ink viscosity characteristics. A control valve activated by the ink cycle control signal delivers ink to the ink fountain.