Liquid ring pump

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view of a liquid ring pump showing a first embodiment of our new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is an elevational view of the opposite side thereof;

FIG. 4 is an end elevational view thereof;

FIG. 5 is an elevational view of the opposite end thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a side elevational view of a second embodiment thereof;

FIG. 9 is an elevational view of the opposite side of the embodiment of FIG. 8;

FIG. 10 is an end elevational view of the embodiment of FIG. 8;

FIG. 11 is an elevational view of the opposite end of the embodiment of FIG. 8;

FIG. 12 is a top plan view of the embodiment of FIG. 8; and,

FIG. 13 is a bottom plan view of the embodiment of FIG. 8.

Referenced Cited
U.S. Patent Documents
D285447 September 2, 1986 Dudeck et al.
4521161 June 4, 1985 Olsen et al.
4613283 September 23, 1986 Haavik
Other references
  • Bulletin No. 704-A "Operation and Maintenance; Nash Two-Stage Vacuum Pump", Nash Engineering Company, Norwalk, Conn. (1984).
Patent History
Patent number: D294266
Type: Grant
Filed: May 8, 1986
Date of Patent: Feb 16, 1988
Assignee: The Nash Engineering Company (Norwalk, CT)
Inventors: Carl G. Dudeck (Newtown, CT), Ole B. Olsen (Newtown, CT)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Law Firm: Jackson Robert R.
Application Number: 6/862,448
Classifications
Current U.S. Class: Pump Or Compressor (D15/7)