Detector utilizing an adjustment screw and a bellows
AssigneeKidde Technologies, Inc.
InventorsDavid Frasure, Steven Wallace
Life of this patent
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Abstract
A detector that detects an alarm and/or fault condition with respect to a pressure of a medium is provided. The detector comprises a housing comprising an access tube configured to receive a medium and a bellows fixed to the housing comprising a cavity and a first contact surface. The detector also comprises an adjustment screw positioned within the cavity of the bellows, coupled to the housing via an insulation member, and comprising a second contact surface. The detector is further configured to detect a change in pressure of the medium based on whether the first contact surface and the first contact surface are in electrical communication.
Claims11
A detector, comprising:
- a housing comprising an access tube configured to receive a medium;
- a bellows fixed to the housing comprising a cavity and a first contact surface;
- an adjustment screw positioned within the cavity of the bellows, coupled to the housing via an insulation member, and comprising a second contact surface,
- wherein the detector is configured to detect a change in pressure of the medium based on whether the first contact surface and the second contact surface are in electrical communication,
- wherein the bellows is configured to compress when the change in pressure is an increase in pressure of the medium,
- wherein the detector is:
- an alarm detector configured to trigger when the first contact surface and the second contact surface are in electrical communication, or
- a fault detector configured to trigger when the first contact surface and the second contact surface are not in electrical communication.
A dual pressure detector, comprising:
- an access tube configured to receive and supply a medium to the dual pressure detector;
- a bellows comprising a cavity and a first contact surface;
- an adjustment screw positioned within the cavity of the bellows and comprising a second contact surface,
- wherein the dual pressure detector is configured to detect a change in pressure of the medium based on whether the first contact surface and the second contact surface are in electrical communication,
- wherein the dual pressure detector is:
- an alarm detector configured to trigger when the first contact surface and the second contact surface are in electrical communication, or
- a fault detector configured to trigger when the first contact surface and the second contact surface are not in electrical communication.
Dependencies are inferred from the claim text.