Thermochromic finger thermometer

- Bio-Temp Products, Inc.

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Description

FIG. 1 is a front elevational view of a thermochromic finger thermometer showing my new design with a typical temperature indication of 80 degrees;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front elevational view of another embodiment of my new design of FIGS. 1-6 with a typical temperature indication of 70 degrees, all other views corresponding to FIGS. 2-6.

It is understood that each temperature indication shown in FIGS. 1 and 7 has a rectangular area adjacent thereto which is visible substantially only when the liquid crystal is at that temperature; hence, normally only one rectangle is visible at any given time.

Referenced Cited
U.S. Patent Documents
D242605 December 7, 1976 Van Kersen
D243512 March 1, 1977 Van Kersen
D244124 April 26, 1977 McLeod
D252136 June 19, 1979 Khempka
D265724 August 10, 1982 Khempka
3059474 October 1962 Keller
3430491 March 1969 Gignilliat
3597976 August 1971 Fryar
3633425 January 1972 Sanford
3677088 July 1972 Lang
3864976 February 1975 Parker
3951133 April 20, 1976 Reese
Other references
  • Popular Science-1/76-p. 73-Liquid Crystal Thermometers.
Patent History
Patent number: D281147
Type: Grant
Filed: Jul 29, 1982
Date of Patent: Oct 29, 1985
Assignee: Bio-Temp Products, Inc. (Indianapolis, IN)
Inventor: Kailash C. Khemka (Indianapolis, IN)
Primary Examiner: Nelson C. Holtje
Law Firm: Barnes & Thornburg
Application Number: 6/402,911
Classifications
Current U.S. Class: Thermometer (D10/57)