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Modular transmitter

  • US 4,833,922 A
  • Filed: 06/01/1987
  • Issued: 05/30/1989
  • Est. Priority Date: 06/01/1987
  • Status: Expired due to Fees
First Claim
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1. A transmitter for providing an output indicative of a pressure of a process fluid, comprising:

  • a first transmitter body having a first passageway filled with isolation fluid and extending from a first port on the first transmitter body to sensing means disposed in the first transmitter body for providing the output;

    a second transmitter body having an isolateer diaphragm therein for isolating the process fluid from isolation fluid filling a second passage extending from the isolator diaphragm to a second port on the second transmitter body;

    a ring of a separate extrusile material disposed around one of said first and second ports; and

    means for urging the first and second transmitter bodies together such that the ring of extrusile material is extruded by contacting both bodies, sealingly coupling the ring to both th first and second ports and containing a selected quantity of the isolation fluid in the transmitter for coupling pressure from the isolator diaphragm to the sensing means.

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