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US3961531A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for adhering thermometer in liquid

Assignee: Individual
•
Filing: 1975-01-06
•
Granted: 1976-06-08
•
Expires: 1995-01-06
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Abstract

Abstract This invention pertains to casing of floating type thermometer in liquid such as water. The casing of said thermometer consists of an elongated, a fish shaped or other configurations of glass or plastic casing having one side flat in order to adhere to the wall of a liquid container by means of "surface tension principle." The construction of the thermometer which is encased in the casing can be such conventional type, which has metal balls confined in one end of the casing as weight to keep it erect. A thermal expansive fluid containing tube is secured in a suitable manner to a graduating scale carried in the interior of the casing. The internal construction of thermometer within the casing forms no part of the instant invention.

Inventors

  • 👤 Ting-Fu Peng

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 02:31
CPC Classifications
G; G01; G01K; G01K13/00; G01K1/00; G01K1/14

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 79 words
A method for adhering a floating thermometer casing to the wall of liquid container including the steps of providing a flat surface on said casing which is to hold the thermometer, placing the thermometer and casing in the liquid of said container and arranging said flat surface to be next to said wall of said container, and allowing surface tension of said liquid to adhere said casing to said liquid container thereby preventing the thermometer and casing from rotating.
Claim 2
Independent Claim 79 words
A method for adhering a floating thermometer casing to the wall of liquid container including the steps of providing a flat surface on said casing which is to hold the thermometer, placing the thermometer and casing in the liquid of said container and arranging said flat surface to be next to said wall of said container, and allowing surface tension of said liquid to adhere said casing to said liquid container thereby preventing the thermometer and casing from rotating.

References Cited (Backward Citations)

US493197A Cited
US1316780A Cited
US1474403A Cited
US2104218A Cited
US2342918A Cited
US2520911A Cited
US2809525A Cited
US3177717A Cited
US3859156A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-06-08 1979-12-08 1980-06-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-06-08 1983-12-08 1984-06-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-06-08 1987-12-08 1988-06-08 $7700.00 Window Closed / Lapsed

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