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:
May. 01, 1984
Filed:
Aug. 20, 1982
George Franke, Amherst, NH (US);
Simplex Time Recorder Co., Gardner, MA (US);
Abstract
A single piece trigger and knock off mechanism for a switch operated card printer includes a lever integrally connected to a resilient mounting bracket which provides a first flexural pivot. The lever comprises a pair of integrally connected arms, each provided with an ear. A moving card contacts the ear on one arm, causing the lever to swing about the first flexural pivot. As the lever swings, the ear on the other arm contacts a switch which triggers a card printer solenoid. The solenoid operates a card printer hammer. The card printer hammer is driven towards the card when the solenoid is triggered. As the hammer is driven towards the card, a moveable element associated with the card printer strikes the arm whose ear is in contact with the switch, causing the arm to swing about a second flexural pivot formed by a bend in the arm. As the arm swings, the ear releases the switch. This knocks off the solenoid just before the hammer contacts the card.