Mechanical test plug for overflow and waste drains
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Description
FIG. 1 is a front view of a mechanical test plug for overflow and waste drains, showing my new design; the back view being a mirror image thereof;
FIG. 2 is a top view thereof;
FIG. 3 is a side view thereof; the opposite side view being a mirror image thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a perspective view thereof and taken from the top and front thereof; and,
FIG. 6 is a perspective view showing the mechanical test plug for overflow and waste drains with respect to the overflow and waste drains of a tub; the dotted lines showing the tub are environmental only and do not form a part of the invention.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
D155997 | November 1949 | Gries |
D242118 | November 1976 | Ono |
D274979 | August 7, 1984 | Hill |
D302110 | July 11, 1989 | Gonzalez |
2245887 | June 1941 | Wikander |
3027569 | April 1962 | Lantz et al. |
3151845 | October 1964 | Leuze |
3509918 | May 1970 | Muzinich |
3550636 | December 1970 | Hearne et al. |
4493344 | January 15, 1985 | Mathison et al. |
4683597 | August 4, 1987 | Taylor, Jr. et al. |
366261 | February 1932 | GBX |
373944 | June 1932 | GBX |
2147079 | May 1985 | GBX |
Patent History
Patent number: D373623
Type: Grant
Filed: Jan 25, 1995
Date of Patent: Sep 10, 1996
Assignee: Cherne Industries Incorporated (Minneapolis, MN)
Inventor: Allen D. Mathison (Richfield, MN)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: Gregory Andoll
Attorney: Anthony G. Eggink
Application Number: 0/34,016
Type: Grant
Filed: Jan 25, 1995
Date of Patent: Sep 10, 1996
Assignee: Cherne Industries Incorporated (Minneapolis, MN)
Inventor: Allen D. Mathison (Richfield, MN)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: Gregory Andoll
Attorney: Anthony G. Eggink
Application Number: 0/34,016
Classifications