Circular tactile keypad

Details Circular tactile keypad Circular tactile keypad

1995-09-26

1997-12-23

Mullen, Thomas

Coded data generation or conversion

Bodily actuated code generator

Including keyboard or keypad

341 20, 341 21, 400489, H03K 1794

Patent

active

057011230

ABSTRACT:
A digital keypad for a controller of an electrical device includes keys which are circularly arranged in a clock face pattern. The keys are marked with numeric indicia in sequential numeric order from 1 to 12, each switch being radially spaced 30-degrees apart. Some of the numbered keys may be replaced with other symbols as desired. Tactile key-finding ridges emanate from the center of the circular key pattern, extending in the direction of each key. The keypad may be releaseably affixed to a trigger grip stand, comprising a planar base and a vertical handle having a trigger switch which when depressed transmits preselected signals to the electrical device.

REFERENCES:
patent: 3754495 (1973-08-01), Honegger
patent: 4042793 (1977-08-01), Bellenger
patent: 4458238 (1984-07-01), Learn
patent: 4891777 (1990-01-01), Lapeyre
patent: 4905213 (1990-02-01), Masse et al.
patent: 5212356 (1993-05-01), English
patent: 5274693 (1993-12-01), Waldman
patent: 5479163 (1995-12-01), Samulewicz
patent: 5508703 (1996-04-01), Okamura et al.
patent: 5515763 (1996-05-01), Vandervoot
patent: 5583497 (1996-12-01), Hankes

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