Differential pressure generator

- PGI International, Ltd.
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Description

FIG. 1 is a perspective bottom view of a differential pressure generator according to the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a right view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines shown in the figures are for illustrative purposes only and form no part of the claimed design.

Claims

The ornamental design for a differential pressure generator, as shown and described.

Referenced Cited
U.S. Patent Documents
3538362 November 1970 Cheetham et al.
D220880 June 1971 Dochterman
4055778 October 25, 1977 Binder
D332936 February 2, 1993 Lawrence
D384033 September 23, 1997 Takeda et al.
D531957 November 14, 2006 Baarman
Patent History
Patent number: D578064
Type: Grant
Filed: Dec 20, 2007
Date of Patent: Oct 7, 2008
Assignee: PGI International, Ltd. (Houston, TX)
Inventor: Spencer M. Nimberger (Houston, TX)
Primary Examiner: Prabhakar Deshmukh
Assistant Examiner: Derrick Holland
Attorney: Browning Bushman P.C.
Application Number: 29/294,066
Classifications
Current U.S. Class: Dynamoelectric Machine (e.g., Generator, Etc.) (D13/114)