Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1998-04-29
2000-07-18
Lee, John R
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
200345, H01H 312, H01H 1302, G01D 534
Patent
active
060910666
ABSTRACT:
A switch structure that is particularly suited for gaming equipment is tolerant of the spillage of food or of contamination resulting from beverage, or continued operation thereof by individuals with soiled hands. The switch structure has an actuatable member having an manipulable portion and a tube extending from the manipulable portion in the direction to be pushed. A protuberance is installed in a core of the tube and arranged to guide the motion of the actuatable member in response to the application of a pushing force to the manipulable portion thereof. A switch is provided for producing a variation in an electrical condition in response to the actuatable member being pushed. A support element has a recess for accommodating therein the actuatable member, there remaining a space surrounding the periphery of the actuatable member sufficient to accommodate contaminants. The space surrounding the periphery of the actuatable member permits contaminants to pass to the bottom of the recess without adhering to the actuatable member. The protuberance is protected from contamination that would enter from the outside by virtue of its being installed in the core space of the tube that smoothly guides the motion of the actuatable member.
REFERENCES:
patent: 5047628 (1991-09-01), Schmidt et al.
patent: 5413358 (1995-05-01), Austin, Jr. et al.
patent: 5612521 (1997-03-01), Bistekos
patent: 5883459 (1999-03-01), Cline et al.
patent: 5921381 (1999-07-01), Von Arx
Aruze Corporation
Lee John R
LandOfFree
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