Signals and indicators – Indicators – Scale structure
Patent
1988-06-30
1990-03-27
Cuchlinski, Jr., William A.
Signals and indicators
Indicators
Scale structure
116DIG20, 116 281, G01D 1304, G01D 1318
Patent
active
049110969
ABSTRACT:
A mark indicator comprises a transparent substrate; a recessed portion formed on a rear face of the transparent substrate and having a tapered shape widened on an open side thereof and having the shape of an indicating medium; and an indicating layer of the indicating medium disposed within the recessed portion. An alternative embodiment comprises an indicating substrate composed of a transparent material; and an indicating layer member disposed on a rear face of the indicating substrate and including an indicating layer having the shape of an indicating medium and substantially a trapezoidal shape in cross section, and a transparent layer disposed in a portion of the indicating layer member except for the indicating layer and substantially having the same thickness as that of the indicating layer. A method for manufacturing a mark indicator comprises the steps of forming a projecting portion in a molding die; setting a film and an indicating layer within the molding die; and flowing a transparent material into the molding die. An alternative method for manufacturing a mark indicator comprises the steps of setting, within a molding die, a film and an indicating layer member which includes an indicating layer and a transparent layer; and flowing a transparent material into the molding die.
REFERENCES:
patent: 1626383 (1927-04-01), Boedtcher
patent: 2261578 (1941-11-01), Bauer
patent: 2376305 (1939-04-01), Bauer
patent: 2475400 (1949-07-01), Osborn
patent: 2652652 (1953-09-01), Lasko
patent: 2738755 (1956-03-01), Doane
patent: 4137864 (1979-02-01), Lauper
IBM Technical Disclosure Bulletin, "Forming a Composite Molded Part", vol. 17, No. 8, Jan. 1975, pp. 2216-2217.
Cuchlinski Jr. William A.
Fujikiko Kabushiki Kaisha
Worth W. Morris
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