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. 16, 1985
Filed:
Mar. 18, 1982
Daryl Schuettpelz, Milwaukee, WI (US);
C.R.O. Inc., Menomonee Falls, WI (US);
Abstract
A height control for use in connection with punch marking a metallic plate and wherein the distance between the punch marking tool and the plate surface undesirably varies at random due to warping of the metal sheet or deviations from desired tolerance. A microprocessor counter measures the time interval during which the punch marker is in contact with the metal plate. This time interval is compared with a predetermined time range that is indicative of an 'in position' condition for the punch marking tool. Detection of time intervals that do not fall within the predetermined 'in position' time range results in a pulsed correction signal that activates an electric motor which in turn varies the height of the punch marking tool via a rack and pinion assembly mounted on the tool assembly.