Remote positioning pneumatic plug

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Description

FIG. 1 is a side elevational of a view of a remote positioning pneumatic plug, showing our new design the opposite side being a mirror image thereof, except for the omission of the cotter pin and eye bolt;

FIG. 2 is a front elevational view thereof;

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

FIG. 4 is a rear elevational view thereof.

The handle shown broken away in FIGS. 1-4 is to indicate the indeterminate length of the elongated handle member.

Referenced Cited
U.S. Patent Documents
2927609 March 1960 Vander Lans
4445542 May 1, 1984 Fouss et al.
4449584 May 22, 1984 Christensen
5234034 August 10, 1993 Lyon
5322653 June 21, 1994 Muller
Other references
  • Product Brochure, Cherne Industries Incorporated, 1990, p. 1 "Multi-Size Test-Ball Plugs". Product Brochure, Cherne Industries Incorporated, 1993, p. 1 "Long Test-Ball Plugs". Product Brochure, Cherne Industries Incorporated, 1992, p. 1 "Field Replaceable Sleeve Muni-Ball Plugs".
Patent History
Patent number: D358871
Type: Grant
Filed: Mar 21, 1994
Date of Patent: May 30, 1995
Assignee: Cherne Industries Incorporated (Minneapolis, MN)
Inventors: Allen D. Mathison (Richfield, MN), Marc P. Bevacco (New Hope, MN)
Primary Examiner: A. Hugo Word
Assistant Examiner: Eric Watterson
Attorney: Anthony G. Eggink
Application Number: 0/20,147
Classifications
Current U.S. Class: Cap, Plug, Vent Or Screen (11) (D23/260)