Process control instrument

- Elsag International N.V.
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Description

FIG. 1 is a front, top and right side perspective view of a process control instrument showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a partial view of the bottom thereof showing another pattern for the holes therein, all other portions of this view are identical to those shown in FIG. 6.

Referenced Cited
U.S. Patent Documents
D208492 September 1967 Aldingen
D264449 May 18, 1982 Izaki
D264825 June 8, 1982 Izaki
D269265 June 7, 1983 Bean et al.
D307708 May 8, 1990 Moriyama et al.
5392223 February 21, 1995 Caci
5506767 April 9, 1996 Naylor
Other references
  • Rosemount Analytical, Model pH/ORP Microprocessor Analyzer -Instruction Manual, Mar. 1995, pp. Cover to 1-5. Great Lakes Instruments, Inc., Model P63 pH Analyzer -Manual No. P63, Revision 1-995, pp. Cover, 29, 16 and 17. George Fischer -Signet -Measurement Transmitter -Instruction Manual. Yokogawa, Model SC200 2-Wire Conductivity Transmitter -Instruction Manual, Aug. 1991, pp. Cover, 4 and 5.
Patent History
Patent number: D381590
Type: Grant
Filed: May 8, 1996
Date of Patent: Jul 29, 1997
Assignee: Elsag International N.V. (Amsterdam)
Inventors: Stewart Thoeni (Carson City, NV), Trevor Aland (Reno, NV)
Primary Examiner: Antoine Duval Davis
Attorney: Michael M. Rickin
Application Number: 0/54,193