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US3678751A Expired / Lapsed US ⏱️ 0.0 years remaining

Thermometer probe

Assignee: Arbrook Inc
•
Filing: 1970-07-01
•
Granted: 1972-07-25
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Expires: 1990-07-01
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Abstract

Abstract Extending from a handle grip is an elongated hollow metal tube with an outer open end. The interior cavity of the tube contains a quantity of foamed plastic, the outer end of which is generally conically shaped and extends beyond the open tube end. A thermistor is located at the tip of the foamed plastic cone and a thin coating of rigid cementitious material is provided over the exposed end of the plastic, metal tube and side portions of the thermistor to secure the thermistor into a fixed position. A removable plastic envelope or sheath is received over the tube and exposed thermistor, with the thermistor bottoming against the inner tube end wall.

Inventors

  • 👤 Carver A Mead
  • 👤 Stephen Kurtin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 21:45
CPC Classifications
G; G01; G01K; G01K13/00; G01K13/20

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 119 words
A clinical thermometer probe for use with external electrical processing and display apparatus, comprising: handle means; a hollow metal tube having one end affixed to the handle means; a foam plastic plug received within the other end of the tube and having generally conical portions protruding from said tube end; a thermistor mounted to the outer end surface of the plug; a thin coating of a rigid, low heat conducting material adhered to the tube, protruding plug portions and parts of the thermistor; and a removable thin wall plastic cover received over said thermistor, plug and tube, said cover being maintained spaced from said tube throughout and having a closed end which is in bearing contact with the thermistor.
Claim 2
Dependent Claim 119 words
A clinical thermometer probe for use with external electrical processing and display apparatus, comprising: handle means; a hollow metal tube having one end affixed to the handle means; a foam plastic plug received within the other end of the tube and having generally conical portions protruding from said tube end; a thermistor mounted to the outer end surface of the plug; a thin coating of a rigid, low heat conducting material adhered to the tube, protruding plug portions and parts of the thermistor; and a removable thin wall plastic cover received over said thermistor, plug and tube, said cover being maintained spaced from said tube throughout and having a closed end which is in bearing contact with the thermistor.
Claim 3
Dependent Claim 160 words
A clinical body temperature sensing probe for use with electrical measuring apparatus, comprising, in combination: handle means; a hollow open-ended tube having one end affixed to the handle means; a body of low heat capacity material included within the other end of the tube and extending outwardly therefrom; heat responsive means mounted onto an outwardly directed surface of said low heat capacity body, said heat responsive means exhibiting an electrical characteristic of value funCtionally related to its temperature; means interconnecting the heat responsive means and the electrical measuring apparatus; a thin film of rigid low heat capacity material unitarily joining the tube, body of low heat capacity material and the heat responsive means; and a low heat capacity, hollow tube shield having an open end and a closed end, said open end being received over the end of the tube and removably retained on said handle means, and said closed end being in contacting relation with the heat responsive means.
Claim 4
Dependent Claim 160 words
A clinical body temperature sensing probe for use with electrical measuring apparatus, comprising, in combination: handle means; a hollow open-ended tube having one end affixed to the handle means; a body of low heat capacity material included within the other end of the tube and extending outwardly therefrom; heat responsive means mounted onto an outwardly directed surface of said low heat capacity body, said heat responsive means exhibiting an electrical characteristic of value funCtionally related to its temperature; means interconnecting the heat responsive means and the electrical measuring apparatus; a thin film of rigid low heat capacity material unitarily joining the tube, body of low heat capacity material and the heat responsive means; and a low heat capacity, hollow tube shield having an open end and a closed end, said open end being received over the end of the tube and removably retained on said handle means, and said closed end being in contacting relation with the heat responsive means.
Claim 5
Dependent Claim 40 words
A clinical temperature probe as in claim 2, in which the heat responsive means includes a thermistor mounted on an outwardly directed surface of the body of low heat capacity material and having an exposed surface free of the coating.
Claim 6
Dependent Claim 31 words
A clinical temperature probe as in claim 2, in which the body of low heat capacity material includes a foamed plastic plug fittingly received within the end of the hollow tube.
Claim 7
Dependent Claim 143 words
A clinical temperature sensing probe for connection with electrical measuring apparatus, comprising: a handle; a hollow, open-ended metal tube having one end secured to the handle and extending outwardly therefrom; a plastic foam plug received within the other end of the tube and having a tapered portion extending outwardly of the tube; a thermistor mounted onto the outer end surface of the plug tapered portion; a thin film of epoxy over the plug tapered portion, tube end and parts of the thermistor integrally securing the same; lead wire means connected to the thermistor and extending through the plug, tube and handle for interconnection with the measuring apparatus; and an elongated, thin-wall tubular plastic shield having an open end frictionally retained to handle, the side walls of which shield are maintained spaced from the tube, and a closed end wall which contacts the thermistor.
Claim 8
Dependent Claim 143 words
A clinical temperature sensing probe for connection with electrical measuring apparatus, comprising: a handle; a hollow, open-ended metal tube having one end secured to the handle and extending outwardly therefrom; a plastic foam plug received within the other end of the tube and having a tapered portion extending outwardly of the tube; a thermistor mounted onto the outer end surface of the plug tapered portion; a thin film of epoxy over the plug tapered portion, tube end and parts of the thermistor integrally securing the same; lead wire means connected to the thermistor and extending through the plug, tube and handle for interconnection with the measuring apparatus; and an elongated, thin-wall tubular plastic shield having an open end frictionally retained to handle, the side walls of which shield are maintained spaced from the tube, and a closed end wall which contacts the thermistor.

References Cited (Backward Citations)

US2938385A Cited
US3025706A Cited
US3367186A Cited
US3402378A Cited
US3349896A Cited
US3431781A Cited
US3485102A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-07-25 1976-01-24 1976-07-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-07-25 1980-01-24 1980-07-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-07-25 1984-01-24 1984-07-25 $7700.00 Window Closed / Lapsed

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