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:
Sep. 19, 1989
Filed:
Jun. 14, 1988
James G Savage, Newark, CA (US);
Brian E Jagger, Pleasanton, CA (US);
Tjado V Namen, Danville, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An impact mechanism for use in an impact printer, to deliver a printing force to drive a character element against a platen by means of a print tip movable toward and away from the platen. A rockable bail bar having an axis of rotation substantially parallel to the axis of the platen is constrained to limited angular movement toward and away from the platen by a prime mover connected to the bail bar. A push rod interconnects the print tip and the bail bar for delivering impact forces to the platen as the bail bar is moved toward the platen. The push rod is normally of a first length and rigid delivering impact forces to the platen and is collapsible to a second length, shorter than the first length, for drawing the print tip away from the platen so as to allow the character element to be removed. A collapsing mechanism is provided to convert the push rod from the first length to the second length.