Disposable instrument pen with integral spring member

Details Disposable instrument pen with integral spring member Disposable instrument pen with integral spring member

1979-11-08

1981-12-22

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

346139C, G01D 1516

Patent

active

043074103

ABSTRACT:
Disposable instrument pen with integrally-formed spring member simplifies installation and provides its own biasing means for urging the pen nib into engagement with a writing surface and/or for retaining the pen in a pen mounting carriage. In various alternative embodiments, the spring member may consist of a cantilever arm, a torsion bar with end mount fixtures, a helical spring, flared wings, etc.

REFERENCES:
patent: 2973237 (1961-02-01), Whiteley
patent: 3373442 (1968-03-01), Belanich
patent: 3435459 (1969-03-01), De Nicola
patent: 3824603 (1974-07-01), Bates
patent: 4023186 (1977-05-01), Tallerico

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