Gasket for corrugated pipes

Description

FIG. 1 is a front perspective view of a gasket for corrugated pipes showing my new design;

FIG. 2 is a side elevational view thereof, the opposite side being the same as the side shown;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a cross sectional view taken on line VI--VI of FIG. 3.

Referenced Cited
U.S. Patent Documents
D196724 October 1963 Davis, Jr.
D244533 May 31, 1977 Eidelberg et al.
D256046 July 22, 1980 Perrin
3565464 February 1971 Wolf
4362187 December 7, 1982 Harris et al.
4368892 January 18, 1983 Parmann
4371179 February 1, 1983 Bohman
4398726 August 16, 1983 Heisler
4426095 January 17, 1984 Buttner
4443031 April 17, 1984 Borsh et al.
4702502 October 27, 1987 Shade
4946206 August 7, 1990 Roe et al.
Patent History
Patent number: D342567
Type: Grant
Filed: Mar 14, 1990
Date of Patent: Dec 21, 1993
Assignee: Sonn Chsen A.S. (Fredrikstad)
Inventor: Per Boen (Vassholmen)
Primary Examiner: James R. Largen
Law Firm: Ladas & Parry
Application Number: 7/493,857
Classifications
Current U.S. Class: Gasket Or Packing (D23/269)