High pressure visual indicator
First Claim
1. A fluid-pressure indicator comprising:
- a housing including a first region and a second region;
a pressure-responsive member disposed in said first region and movable between an expanded state and a compressed state;
an indicator disk viewable through said pressure-responsive member when said pressure-responsive member is in said compressed state and obscured from view through said pressure-responsive member when said pressure-responsive member is in said expanded state;
a diaphragm movable from a relaxed state to a deflected state in response to pressure within said second region exceeding a threshold pressure, said diaphragm preventing fluid communication between said first region and said second region and causing said pressure-responsive member to move from said expanded state to said compressed state when said pressure exceeds said threshold pressure; and
a transmission member at least partially disposed within said passageway, said transmission member operable to transmit a force from said diaphragm to said pressure-responsive member to move said pressure-responsive member from said expanded state to said compressed state when said diaphragm is moved from said relaxed state to said deflected state,wherein said housing includes an engagement surface that engages said diaphragm when said diaphragm is in said deflected state.
8 Assignments
0 Petitions
Accused Products
Abstract
A fluid-pressure indicator includes a housing having a first region and a second region. A pressure-responsive member is disposed in the first region and is movable between an expanded state and a compressed state. An indicator disk is viewable through the pressure-responsive member when the pressure-responsive member is in the compressed state and is obscured from view through the pressure-responsive member when the pressure-responsive member is in the expanded state. A diaphragm is movable from a relaxed state to a deflected state in response to pressure within the second region exceeding a threshold pressure and prevents fluid communication between the first region and the second region. The diaphragm additionally causes the pressure-responsive member to move from the expanded state to the compressed state when the pressure exceeds the threshold pressure.
29 Citations
19 Claims
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1. A fluid-pressure indicator comprising:
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a housing including a first region and a second region; a pressure-responsive member disposed in said first region and movable between an expanded state and a compressed state; an indicator disk viewable through said pressure-responsive member when said pressure-responsive member is in said compressed state and obscured from view through said pressure-responsive member when said pressure-responsive member is in said expanded state; a diaphragm movable from a relaxed state to a deflected state in response to pressure within said second region exceeding a threshold pressure, said diaphragm preventing fluid communication between said first region and said second region and causing said pressure-responsive member to move from said expanded state to said compressed state when said pressure exceeds said threshold pressure; and a transmission member at least partially disposed within said passageway, said transmission member operable to transmit a force from said diaphragm to said pressure-responsive member to move said pressure-responsive member from said expanded state to said compressed state when said diaphragm is moved from said relaxed state to said deflected state, wherein said housing includes an engagement surface that engages said diaphragm when said diaphragm is in said deflected state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A fluid-pressure indicator comprising:
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a housing including a first region, a second region, and a passageway extending between said first region and said second region; a pressure-responsive member disposed in said first region and movable between an expanded state and a compressed state; an indicator disk viewable through said pressure-responsive member when said pressure-responsive member is in said compressed state and obscured from view through said pressure-responsive member when said pressure-responsive member is in said expanded state; a diaphragm movable from a relaxed state to a deflected state in response to pressure within said second region exceeding a threshold pressure to cause said pressure-responsive member to move from said expanded state to said compressed state, said diaphragm having a first side contacting an engagement surface of said housing at an opening of said passageway in said deflected state to prevent fluid communication between said first region and said second region; and a transmission member at least partially disposed within said passageway, said transmission member operable to transmit a force from said diaphragm to said pressure-responsive member to move said pressure-responsive member from said expanded state to said compressed state when said diaphragm is moved from said relaxed state to said deflected state. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification