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Pressure sensing vessel adapted to be preloaded against a sensor

  • US 5,563,347 A
  • Filed: 09/12/1994
  • Issued: 10/08/1996
  • Est. Priority Date: 09/12/1994
  • Status: Expired due to Term
First Claim
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1. In a segment for fluid flow, a pressure vessel for interfacing with a sensor having a sensor surface for pressing against the pressure vessel and establishing a pre-load with the pressure vessel and for transferring fluid pressure of the segment to the sensor, the pressure vessel comprising:

  • a hollow crown for engaging the sensor, having a cylindrical side wall, a closed upper end for pressing against the sensor surface and an open lower end formed of a flexible material, within which the fluid pressure is received, the crown portion adapted to be pre-loaded against the sensor surface so that both positive and negative pressures of the fluid pressure within the segment will be communicated to the sensor; and

    a membrane peripheral region connected to and extending away from the open lower end of said hollow crown, the peripheral portion suspending the crown so that the crown moves in response to fluid pressure and biasing the crown into contact with the sensor surface to establish the pre-load.

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