Metering pump

Description

FIG. 1 is a right side elevational view of a metering pump embodying my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view thereof; and

FIG. 8 is another perspective view thereof.

Referenced Cited
U.S. Patent Documents
D262113 December 1, 1981 Durrum
4523902 June 18, 1985 Wally
4537565 August 27, 1985 Edler
4565501 January 21, 1986 Laurendeau et al.
Foreign Patent Documents
558595 January 1944 GBX
Other references
  • Cole-Parmer Catalog, 1985-86, p. 548, upper right corner pump.
Patent History
Patent number: D315739
Type: Grant
Filed: Aug 23, 1988
Date of Patent: Mar 26, 1991
Assignee: ProMinent Dosiertechnik GmbH (Heidelberg)
Inventor: Hans-Jurgen Lannoch (Linkenheim-Hochstetten)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris V. Coles
Attorney: Peter K. Kontler
Application Number: 7/235,221
Classifications
Current U.S. Class: Pump Or Compressor (D15/7)