Seal for pressure transmitter for use in industrial process
AssigneeRosemount Inc.
InventorsDavid Andrew Broden, Daniel Ronald Schwartz, Jonathan Gordon Koehler
Life of this patent
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Abstract
A pressure transmitter system for measuring a pressure of a process fluid in an industrial process includes a pressure transmitter having a pressure sensor. A process fluid passageway having a circular opening is configured to couple pressure of the process fluid to the pressure sensor. A concentric seal support structure extends around the circular opening comprising an annular recess. An annular stress riser is positioned radially inward from the annular recess. A seal material fills the annular recess and contacts at least a portion of the annular stress riser.
Claims19
A pressure transmitter system for measuring a pressure of a process fluid in an industrial process, comprising:
- a pressure transmitter having a pressure sensor;
- a process fluid passageway having a circular opening configured to couple pressure of the process fluid to the pressure sensor;
- a concentric seal support structure which extends around the circular opening comprising:
- an annular recess;
- an annular stress riser positioned radially inward from the annular recess;
- and
- a seal material which fills the annular recess and contacts at least a portion of the annular stress riser.
A method of sealing a process variable transmitter having a pressure sensor to a process fluid, comprising:
- providing an annular stress riser extending around a process coupling;
- providing an annular recess around the stress riser positioned radially outward from the annular stress riser;
- placing a seal material in the annular recess and between the stress riser and a process face;
- and
- applying a pre-load force which urges the seal material against the process face.
Dependencies are inferred from the claim text.