liquid level gauge

- Rochester Gauges, Inc.
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Description

FIG. 1 is a perspective view of the liquid level gauge;

FIG. 2 is a top view of the liquid level gauge;

FIG. 3 is a front view of the liquid level gauge;

FIG. 4 is a side view of the liquid level gauge;

FIG. 5 is a back view of the liquid level gauge; and,

FIG. 6 is a bottom view of the liquid level gauge.

Referenced Cited
U.S. Patent Documents
D313949 January 22, 1991 Fekete
D363888 November 7, 1995 Williamson
D378284 March 4, 1997 Grilk et al.
1304022 May 1919 Cole
1316341 September 1919 Vosika
2992560 July 1961 Morgan et al.
3132331 May 1964 Boddy
3364321 January 1968 Gessner
3688795 September 1972 Taylor
3709038 January 1973 Werner
3739641 June 1973 Taylor et al.
4223190 September 16, 1980 Olson
4864273 September 5, 1989 Tsuzuki et al.
4911011 March 27, 1990 Fekete et al.
4967181 October 30, 1990 Iizuka et al.
4987400 January 22, 1991 Fekete
5050433 September 24, 1991 Lumetta
5357815 October 25, 1994 Williamson
Foreign Patent Documents
1380031 January 1975 GBX
Other references
  • Rochester Gauges, Inc., Rochester Industrial Level Gauges Brochure, Aug. 1993, 12 pages. Rochester Gauges, Inc., EZ-Read TwinSite.TM. Sender Installation/Conversion Technical Data Sheet DS-923, 4 pages. Rochester Gauges, Inc., Senior EZ-Read TwinSite.TM. Sender for Industrial Service Technical Data Sheet TS002, Mar. 25, 1994, 2 pages. Rochester Gauges, Inc., Junior EZ-Read TwinSite.TM. Sender for Industrial Service Technical Data Sheet TS003, Mar. 25, 1994, 2 pages. Rochester Gauges, Inc., Voltage-Divider TwinSite.TM. Sender Technical Data Sheet VD001, Jan. 21, 1994, 2 pages. Rochester Gauges, Inc., TwinSite.TM. Switch Technical Data Sheet VD002, Jan. 21, 1994, 2 pages. Rochester Gauges, Inc., "Junior.RTM. EZ-Read Twin-Site.TM. Two-Terminal Sender," May 27, 1992, 2 pages. Rochester Gauges, Inc., Various Gauges Aug. 1993, one page.
Patent History
Patent number: D386997
Type: Grant
Filed: Sep 26, 1996
Date of Patent: Dec 2, 1997
Assignee: Rochester Gauges, Inc. (Dallas, TX)
Inventor: Cecil M. Williamson (Carrollton, TX)
Primary Examiner: Antoine Duval Davis
Law Firm: Sidley & Austin
Application Number: 0/60,319
Classifications
Current U.S. Class: Volume, Flow Or Rate (D10/96)
International Classification: 1004;