Pneumatic test plug

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Description

FIG. 1 is a front elevation view of a pneumatic test plug showing our new design, the rear elevation view being a mirror image thereof;

FIG. 2 is a side elevation view showing the pneumatic test plug of FIG. 1, the opposite side elevation view being a mirror image thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

The broken line showing of a product warning tag in FIG. 1 is for illustrative purposes only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D261240 October 13, 1981 Vest et al.
D340197 October 12, 1993 Esposito
4122869 October 31, 1978 Roberson, Sr.
4203473 May 20, 1980 Roberson
4417598 November 29, 1983 DePirro
4608858 September 2, 1986 McKinnon
4658861 April 21, 1987 Roberson
Patent History
Patent number: D350704
Type: Grant
Filed: Apr 12, 1993
Date of Patent: Sep 20, 1994
Assignee: Cherne Industries Incorporated (Minneapolis, MN)
Inventors: Allen D. Mathison (Richfield, MN), Marc P. Bevacco (New Hope, MN), Bryan R. Benson (North Branch, MN)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Attorney: Anthony G. Eggink
Application Number: 0/6,982
Classifications
Current U.S. Class: Element Or Attachment (4) (D10/80)