Coating implements with material supply – Plural tools including projectable and retractable tool – Single actuator for simultaneous projection of one tool and...
Patent
1976-06-21
1978-03-21
Pellegrino, Stephen C.
Coating implements with material supply
Plural tools including projectable and retractable tool
Single actuator for simultaneous projection of one tool and...
401 32, B43K 2714
Patent
active
040800776
ABSTRACT:
A dual refill containing variable refill positioning writing instruments utilizing cam followers attached to two refill members and oppositely threaded spiral cam grooves within which said cam followers ride. The writing instrument includes an inner tubular shell having two spiral cam grooves each located substantially about one-half of the circumference of said shell and longitudinally displaced from each other and an outer tubular shell having two spiral cam grooves located around substantially one-half the circumference of the shell and longitudinally spaced from each other with each of the cam grooves corresponding with but oppositely threaded in respect to the inner shell spiral cam grooves. The inner shell nests within and is rotatable with respect to the outer shell.
REFERENCES:
patent: 1697437 (1929-01-01), Stout et al.
patent: 1981917 (1934-11-01), Kimura
Pellegrino Stephen C.
Sarastro Kinzinger GmbH
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