Patent ID: 9032805
Filing Date: 2015-05-19
Classification: G01L

Abstract:
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.