MEMBRANE SWITCH MECHANISM
First Claim
1. A user interface for a gas valve controller that controls a gas valve, comprising:
- a first back lit icon that, when back lit, is indicative of a gas valve being in an open position;
a second back lit icon that, when back lit, is indicative of the gas valve being in a fully closed position; and
a reset membrane switch that, when activated by a user, sends a reset signal to the gas valve controller.
1 Assignment
0 Petitions
Accused Products
Abstract
A mechanism, such as a membrane switch, may incorporate universal symbols making it language independent. Status of switch components may be understood without aid of another device. The components may have, for example, white backlights and/or icons for neutral symbols to convey informational conditions that do not necessarily command immediate attention and may have, for example, color backlights and/or icons for non-neutral symbols to convey informational conditions that command immediate attention. A choice of white may be agnostic to color blindness and provide high contrast. Also, there may be a self-test icon with an indication when there is an on-going test of a system with which the mechanism is associated. Symbols on the face of the mechanism may indicate valve openings and closings, pressures, faults, and so forth. The symbols and associated lights and backlights may be visible for at least a specified distance to a person with normal vision.
14 Citations
22 Claims
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1. A user interface for a gas valve controller that controls a gas valve, comprising:
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a first back lit icon that, when back lit, is indicative of a gas valve being in an open position; a second back lit icon that, when back lit, is indicative of the gas valve being in a fully closed position; and a reset membrane switch that, when activated by a user, sends a reset signal to the gas valve controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A user interface for a gas valve controller that controls a gas valve, comprising:
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a first back lit icon that, when back lit, illuminates an image of an open valve; a second back lit icon that, when back lit, illuminates an image of a closed valve; a third back lit icon that, when back lit, is indicative of a gas pressure upstream of the gas valve being out of a first defined range, wherein the first defined range is bounded on at least one end; a fourth back lit icon that, when back lit, is indicative of a gas pressure downstream of the gas valve being out of a second defined range, wherein the second defined range is bounded on at least one end; a fifth back lit icon, that when back lit, is indicative of a self-test in progress; a sixth back lit icon, that when back lit, is indicative of a fault; and a reset membrane switch that, when activated by a user, sends a reset signal to the gas valve controller, wherein a perimeter of the reset membrane switch is defined by a button background. - View Dependent Claims (20)
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21. A user interface for a gas valve controller that controls a gas valve, comprising:
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a first back lit icon that, when back lit, illuminates an image of a first valve in an open position; a second back lit icon that, when back lit, illuminates an image of the first valve in a closed position; a third back lit icon that, when back lit, illuminates an image of a second valve in an open position; a fourth back lit icon that, when back lit, illuminates an image of the second valve in a closed position; a fifth back lit icon that, when back lit, is indicative of a gas pressure upstream of the first and second gas valves being out of a first defined range, wherein the first defined range is bounded on at least one end; a sixth back lit icon that, when back lit, is indicative of a gas pressure downstream of the first and second gas valves being out of a second defined range, wherein the second defined range is bounded on at least one end; a seventh back lit icon, that when back lit, is indicative of a self-test in progress; an eighth back lit icon, that when back lit, is indicative of a fault; and a reset membrane switch that, when activated by a user, sends a reset signal to the gas valve controller, wherein a perimeter of the reset membrane switch is defined by a button background. - View Dependent Claims (22)
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Specification