×

Electrochemical sensor with temperature compensation means

  • US 4,338,174 A
  • Filed: 01/08/1979
  • Issued: 07/06/1982
  • Est. Priority Date: 01/08/1979
  • Status: Expired due to Term
First Claim
Patent Images

1. An electrochemical sensor comprising:

  • a housing defining a passageway for fluids to be monitored;

    at least one electrode;

    a membrane in said housing separating said electrode from fluid in said passageway;

    and characterized by temperature sensing means, proximate said membrane, penetrating said housing and being in direct thermal contact with fluid in said passageway,wherein said temperature sensing means comprises a removable collar carrying thermistor means, said collar being sealably matably received by said housing means to hold said thermistor means in direct thermal contact with said fluid, whereby said sensor is disposable but said temperature sensing means is reusable,wherein said electrode includes a disposable portion carried by said housing and a reusable portion contactable with said disposable portion, wherein said housing includes an outwardly raised boss surrounding said disposable electrode portion, wherein said reusable electrode portion includes a collar for matable sealing engagement with said boss, and wherein said thermistor means collar includes a protuberance removably held between said boss and said electrode collar.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×