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:
Feb. 28, 1989
Filed:
Jun. 24, 1987
John A Robertson, Chillicothe, OH (US);
David L Cyphert, Chillicothe, OH (US);
Telesis Controls Corporation, Chillicothe, OH (US);
Abstract
Apparatus for forming multi-character messages on the surface of solid materials which employs an array of marker pins moved by a carriage in a manner defining an undulating locus of movement. This locus traces the matrix with which character fonts are defined by pixels formed by the marker pins as discrete indentations. The carriage and head containing the marker pin are pivotally driven by a cam to provide vertical movement and by a Geneva mechanism to provide horizontal movement. Pixel positions for the matrices are established by a timing disk and control over the pins is provided employing an interrupt approach. Each marking pin within the head assembly is capable of marking more than one complete character for a given transverse of the head between home and away limits.