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:
Jul. 30, 1996
Filed:
Nov. 07, 1994
Robert Dam, Buffalo Grove, IL (US);
Joseph J Gierut, Rockford, IL (US);
Richard D McAffrey, Glendale, AZ (US);
Illinois Tool Works Inc., Glenview, IL (US);
Abstract
A switch structure is provided for use in computer pen-based applications which can be easily adapted to perform either as a 'writing' pen, an 'artist' pen, or a 'CAD' pen. The switch structure includes a top compression spring, an actuator, a bottom compression spring, a pair of PCB-connectible terminal pins, a printed circuit board having a pair of fixed spaced-apart electrodes and a cover plate which are especially arranged within a housing. The pair of terminal pins are in engagement with a respective one of the pair of electrodes. In one preferred embodiment, one end of the bottom compression spring contactly engages the pair of terminal pins to produce an electrical connection between the pair of electrodes when the actuator is in its fully extended position. The components of the switch structure can be easily modified so as to be utilized in each of the three common pen applications, thereby reducing cost in manufacturing and assembly. The uniquely-designed PCB-connectible terminal pins are adapted for electrical connections with a pair of electrodes formed on the printed circuit board, thereby eliminating the necessity for soldering hard-wire connections.