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. 17, 1985
Filed:
Oct. 14, 1983
Kevin L Bobart, Lexington, KY (US);
Robert S Samson, Lexington, KY (US);
Iraj D Shakib, Lexington, KY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An LED/photodetector structure is disclosed positioned to cooperate with a daisy wheel print element of a daisy wheel printer and a light interrupter such that under microprocessor control, a stepping motor will rotate and home the daisy wheel print element, sense the escapement pitch corresponding to that element, sense the font weight or impact force level associated with that print element and then cause the carrier to be translated to the left frame, thereby engaging the light beam interrupter with the left frame and forcing it into the light beam indicating the presence or the carrier at a known spacial position for homing of the carrier position. The data carried by the print element in the form of apertures formed in the hub thereof and are all spacially positioned within one semicircular portion of the print element hub.