Card – picture – or sign exhibiting – Register – or file – Pivoted panel
Patent
1987-05-15
1989-05-09
Lazarus, Ira S.
Card, picture, or sign exhibiting
Register, or file
Pivoted panel
188130, 188268, B42F 1720
Patent
active
048276413
ABSTRACT:
There is disclosed an index device in which a cover member is axially attached to a receptacle so as to be openable and closable, and a multiplicity of cards are accommodated therebetween so as to be superposed on each other. This indexing device is arranged such that: a rotation resisting member including viscous substance for moderating the resilient repulsion forces when the cover member is unfolded from the receptacle is provided between the receptacle and the cover member; the rotation resisting member has a rotor which rotates within hermetically sealed casings attached to the receptacle and filled with the viscous substance; and notches are formed in a peripheral portion of the rotor.
REFERENCES:
patent: 2000086 (1935-05-01), Mallory
patent: 4098375 (1978-07-01), Kornylak
Carl Manufacturing Co., Ltd.
Hagarman Sue
Lazarus Ira S.
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