Hand held vacuum pump for use in delivery rooms

- Lawrence Smith

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Description

FIG. 1 is a front perspective view of a hand held vacuum pump showing our new design, on an enlarged scale;

FIG. 2 is a left side elevational view thereof, the right side being a mirror image;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof; and

FIG. 6 is a top plan view thereof.

Referenced Cited
U.S. Patent Documents
D283533 April 22, 1986 Evenson
D304757 November 21, 1989 Post et al.
D307935 May 15, 1990 Tretzger
4106534 August 15, 1978 Johnson
4338066 July 6, 1982 Luker
4565506 January 21, 1986 Williams
Other references
  • Industrial Plastics Cat., Discounts item, vacuum pump w/gauge, p. 125.
Patent History
Patent number: D321927
Type: Grant
Filed: Mar 27, 1989
Date of Patent: Nov 26, 1991
Assignees: Lawrence Smith (Bend, OR), Emily Smith (Bend, OR)
Inventors: Lawrence M. Smith (Bend, OR), Richard N. Cooper (Lake Oswego, OR)
Primary Examiner: Susan J. Lucas
Assistant Examiner: M. H. Tung
Law Firm: Marger, Johnson, McCollom & Stolowitz, Inc.
Application Number: 7/328,959