Coupling nut
Description
FIG. 1 is a perspective view of a coupling nut showing my new design, the broken line showing the threaded pipes being for illustrative purposes only and forming no part of the claimed design. The undisclosed portions of the threads and inner edges follow the contours of the sides shown;
FIG. 2 is a top plan view of the coupling nut shown on a reduced scale;
FIG. 3 is a bottom plan view thereof shown on a reduced scale;
FIG. 4 is a left side elevational view of the coupling nut shown on an enlarged scale, the right elevational view being identical thereto; and,
FIG. 5 is a front elevational view of the coupling nut shown on an enlarged scale, the rear view being identical thereto.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
D16160 | July 1885 | Crane |
D43713 | March 1913 | Campbell |
D54781 | March 1920 | Sheffner |
D258379 | February 24, 1981 | Joseph |
D277454 | February 5, 1985 | Meinhardt |
2286263 | June 1942 | Comins |
5061077 | October 29, 1991 | Whiteman, Jr. |
5525215 | June 11, 1996 | Marchionda |
866949 | September 1941 | FRX |
2220240 | January 1990 | GBX |
- Thos. Somerville Co. Plumbing, Heating & Mill Supplies Cat. 52 of 1952; p. 298--item on upper right indicated by arrow, 1952.
Patent History
Patent number: D390923
Type: Grant
Filed: Jul 19, 1996
Date of Patent: Feb 17, 1998
Inventor: Derek Stevens (Brooklyn, NY)
Primary Examiner: Ted Shooman
Assistant Examiner: C. Tuttle
Law Firm: Goldstein & Associates
Application Number: 0/57,204
Type: Grant
Filed: Jul 19, 1996
Date of Patent: Feb 17, 1998
Inventor: Derek Stevens (Brooklyn, NY)
Primary Examiner: Ted Shooman
Assistant Examiner: C. Tuttle
Law Firm: Goldstein & Associates
Application Number: 0/57,204
Classifications