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Liquid ring pump
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Information
Patent Grant
D294266
References
Source
Patent Number
D294,266
Date Filed
Thursday, May 8, 1986
39 years ago
Date Issued
Tuesday, February 16, 1988
37 years ago
Inventors
Carl G. Dudeck
Ole B. Olsen
Original Assignees
The Nash Engineering Company
Examiners
Burke; Wallace R.
Vinson; Brian N.
Agents
Jackson Robert R.
US Classifications
D15 - Machines not elsewhere specified
Field of Search
US
D15 7
D15 9
417 65-66
417 68-69
Term of Grant
14Years
Information
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Abstract
Description
Claims
The ornamental design for a liquid ring pump, as shown and described.
US Referenced Citations (3)
Number
Name
Date
Kind
D285447
Dudeck et al.
Sep 1986
4521161
Olsen et al.
Jun 1985
4613283
Haavik
Sep 1986
Non-Patent Literature Citations (1)
Entry
Bulletin No. 704-A "Operation and Maintenance; Nash Two-Stage Vacuum Pump", Nash Engineering Company, Norwalk, Conn. (1984).