Temperature sensor for pipes

- Fairform Mfg. Co., Ltd.
Description

FIG. 1 is a top plan view of a temperature sensing instrument for pipes showing my new design;

FIG. 2 is a bottom plan view;

FIG. 3 is a left side elevational view, the right side elevational view being a mirror image;

FIG. 4 is a rear elevational view;

FIG. 5 is a front elevational view; and

FIG. 6 is a top, front and left side perspective view thereof.

Referenced Cited
U.S. Patent Documents
2579150 December 1951 Leopold et al.
2626524 January 1953 Harman
2645116 July 1953 Baxter
3581568 June 1971 Pfefer
3635086 January 1972 Beruck
4135549 January 23, 1979 Baker
4138890 February 13, 1979 Brown
Patent History
Patent number: D317876
Type: Grant
Filed: Jun 30, 1989
Date of Patent: Jul 2, 1991
Assignee: Fairform Mfg. Co., Ltd. (Hong Kong)
Inventor: Hing-Wah Huen (Kowloon)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antonic D. Davis
Law Firm: Browning, Bushman, Anderson & Brookhart
Application Number: 7/373,527
Classifications