Combined vacuum pump and compressor

- Mannesmann AG
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Description

FIG. 1 is a perspective view of a combined vacuum pump and compressor showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a top plan view;

FIG. 5 is a bottom plan view;

FIG. 6 is a left side elevational view; and,

FIG. 7 is a right side elevational view.

Referenced Cited
U.S. Patent Documents
D282471 February 4, 1986 Bearint et al.
D282546 February 11, 1986 Ozu et al.
D294361 February 23, 1988 Williams
D299143 December 27, 1988 Hazlehurst
D315912 April 2, 1991 Nishida et al.
D317313 June 4, 1991 Yoshida et al.
D317922 July 2, 1991 Toyoda et al.
Patent History
Patent number: D335292
Type: Grant
Filed: Feb 4, 1991
Date of Patent: May 4, 1993
Assignee: Mannesmann AG (Dusseldorf)
Inventor: Manfred Schnell (Schopfheim)
Primary Examiner: A. Hugo Word
Assistant Examiner: R. Seifert
Attorney: R. H. Siegemund
Application Number: 7/653,441
Classifications
Current U.S. Class: Pump Or Compressor (D15/7)