Switch for computer pen

Details Switch for computer pen Switch for computer pen

1994-11-07

1996-07-30

Scott, J. R.

Electricity: circuit makers and breakers

Special application

178 18, 200 6142, H01H 3500, G06F 300, G06K 1118

Patent

active

055413757

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.

REFERENCES:
patent: 2334271 (1943-11-01), Malm et al.
patent: 3934101 (1976-01-01), Jones
patent: 4268730 (1981-05-01), Higgins et al.
patent: 4491688 (1985-01-01), Schaub et al.
patent: 4564730 (1986-01-01), Tomizu et al.
patent: 4681994 (1987-07-01), Nagata et al.
patent: 4695680 (1987-09-01), Kable
patent: 4795863 (1989-01-01), Tomizu et al.
patent: 5410334 (1995-04-01), Comerford

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