Probe with contact indicating means

Details Probe with contact indicating means Probe with contact indicating means

1977-06-30

1978-11-21

Evans, F. L.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324158P, G05D 2500

Patent

active

041263804

ABSTRACT:
A probe including means for indicating when the probe has come into physical contact with a target. The probe has a deformable opaque tip containing a transparent window which is normally covered by a shutter. When the probe contacts a target the probe tip deforms, moving the window away from the shutter. Light will be reflected from the target through the window to indicate that contact has been made.

REFERENCES:
patent: 3498692 (1970-03-01), Jewitt et al.
Beauregard et al., IBM Technical Disclosure Bulletin vol. 8, No. 8, Jan. 1966, p. 1144.
Laczko et al., IBM Technical Disclosure Bulletin vol. 12, No. 6, Nov. 1969, p. 868.
Barr et al., IBM Technical Disclosure Bulletin vol. 16, No. 5, Oct. 1973, pp. 1533 and 1534.

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