Indicating device

Details Indicating device Indicating device

1994-11-14

1997-10-21

Fridie, Jr., Willmon

Printed matter

With sliding leaf

285 2, 235 88R, B42D 1500

Patent

active

056788622

ABSTRACT:
An indicating device (2) for indicating dates upon which events such as procedural steps should take place, said device (2) comprising a first disc (4) having a first field )24) which includes a plurality of first dates and at least one second field (26) which includes a plurality of second dates, the positions of said fields (24, 26) having a predetermined relationship to one another on the first disc, a second disc (6) pivotally connected for relative rotary movement to the first disc (4), the second disc having a first window (12) which can be aligned with a selected one of the first dates and a second window (14, 16, 18, 20) having a predetermined position relative to the first window, the arrangement being such that when the first window is aligned with one of the first dates, the second window is aligned with a second date in the second field thereby indicating the date upon which an event should take place consequent upon selection of one of the first dates.

REFERENCES:
patent: 1942754 (1934-01-01), Heyssier
patent: 2076242 (1937-04-01), Marquis
patent: 2481067 (1949-09-01), Benner et al.
patent: 2542943 (1951-02-01), Reiner
patent: 2650764 (1953-09-01), Pierszel
patent: 3995379 (1976-12-01), Werber
patent: 4772780 (1988-09-01), Reed et al.
patent: 5189285 (1993-02-01), Young, Jr.
Instructions "The Weems E-6B Aerial Navigation Computer Instruction Manuel", pp. 4-8 & 20-21. No publication date given.

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