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:
Dec. 20, 1983
Filed:
Dec. 21, 1981
William D Thorne, Wake Forest, NC (US);
William A Patterson, Durham, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An improved print hammer and actuator mechanism therefor are described. The hammer mechanism comprises a solenoid plunger and push wire or push rod which is directly affixed to one end of the hammer. The opposite end of the hammer is flexibly or pivotably mounted by a spring. The spring is rigidly affixed to the bottom portion of the hammer. It is flexed or twisted to enable the hammer top portion to be deflected. A shock absorbing connector connects the push wire to the print hammer. The position of the solenoid plunger can be adjusted by adjustable abutments at either end of its throw. This adjusts the flight time and the impact force, as well as the relative rest position of the hammer face, since the push wire is firmly connected to both the plunger and to the top of the hammer mechanism. The shock absorbing connector between the end of the push wire and the hammer mechanism controls the amount of force applied at impact.