Pressure sensitive element and a stylus pen with pressure sensit

Details Pressure sensitive element and a stylus pen with pressure sensit Pressure sensitive element and a stylus pen with pressure sensit

1995-02-22

1997-05-27

Dougherty, Elizabeth L.

Measuring and testing

Analyzing bodily movement

178 18, G01L 500

Patent

active

056334710

ABSTRACT:
A pressure sensitive element is arranged around a core unit along the longitudinal axis of a stylus pen (10) to detect the pressure applied to the core unit. The pressure sensitive element comprises a pressure transmittable member (30b), in an annular plate shape, for transmitting the pressure applied in the axial direction of the pressure sensitive element, a pressure sensitive member (28), in an annular plate shape, arranged coaxially in parallel to the pressure transmittable member, and a support member (18b) for supporting the pressure sensitive member between the support member against the applied pressure, arranged coaxially in parallel to the pressure transmittable member. The core unit is a push and thrust type writing unit (14).

REFERENCES:
patent: 3528295 (1970-09-01), Johnson et al.
patent: 3621720 (1971-11-01), Clark
patent: 4111052 (1978-09-01), Sniderman
patent: 4513437 (1985-04-01), Chainer et al.
patent: 4896543 (1990-01-01), Gullman
patent: 5060527 (1991-10-01), Burgess
patent: 5422959 (1995-06-01), Lee

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