Process control instrument

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Information

Patent Grant
D381590

References
Source

Patent Number
D381,590
Date Filed
Wednesday, May 8, 1996
29 years ago
Date Issued
Tuesday, July 29, 1997
28 years ago

Inventors
- Stewart Thoeni
- Trevor Aland
Original Assignees
- Elsag International N.V.
Examiners
- Davis; Antoine Duval
Agents
- Rickin; Michael M.

US Classifications
- D10 - Measuring, testing, or signalling instruments
- D13 - Equipment for production, distribution, or transformation of energy
Field of Search
- US
- D10 49
- D10 50
- D10 75
- D13 164
- 057 264
- 355 208
- 355 246
- 364 131
- 364 133
- 364 138
- 364 146
- 364 150
- 364 162
- 364 164
- 364 165
- 364 187
- 364 188
- 364 189
- 364 468
- 364 470
- 364 481-487
- 364 550-582
- 395 20002
International Classifications
- 1004
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a process control instrument, as shown and described.

US Referenced Citations (7)

Number	Name	Date	Kind
D208492	Aldingen	Sep 1967
D264449	Izaki	May 1982
D264825	Izaki	Jun 1982
D269265	Bean et al.	Jun 1983
D307708	Moriyama et al.	May 1990
5392223	Caci	Feb 1995
5506767	Naylor	Apr 1996

Non-Patent Literature Citations (4)

Entry
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.