Pipe test cap
Description
FIG. 1 is a prospective view showing the top and a side wall of a pipe test cap;
FIG. 2 is a side elevational view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a prospective view thereof showing the interior of the bottom and the side not illustrated in FIG. 1;
FIG. 5 is an enlarged partial perspective view corresponding to part of FIG. 1; and
FIG. 6 is an enlarged partial perspective view corresponding to part of FIG. 4.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
D216694 | May 1970 | Lause |
352540 | July 1931 | GBX |
376004 | July 1932 | GBX |
Patent History
Patent number: D257057
Type: Grant
Filed: Aug 15, 1977
Date of Patent: Sep 23, 1980
Inventor: Duane D. Logsdon (Fullerton, CA)
Primary Examiner: Sam Rosen
Attorney: Edward D. O'Brian
Application Number: 5/824,991
Type: Grant
Filed: Aug 15, 1977
Date of Patent: Sep 23, 1980
Inventor: Duane D. Logsdon (Fullerton, CA)
Primary Examiner: Sam Rosen
Attorney: Edward D. O'Brian
Application Number: 5/824,991
Classifications
Current U.S. Class:
D23/41
International Classification: D2301;
International Classification: D2301;