Tapered threaded coupling

Description

FIG. 1 is a front perspective view of the tapered threaded coupling showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a rear plan view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a side view thereof, with the opposite side view being identical thereto.

Claims

The ornamental design for tapered threaded coupling, as shown and described .

---

Inventors:	Schrader; Robert S. (Dallas, TX), Snyder; James L. (Houston, TX), Ellenberger; James Phillip (Spring, TX), Magee; James W. (Houston, TX), Badley; Peter J. (Houston, TX), Escobedo; Joe A. (Houston, TX), Gutierrez; Daniel T. (Houston, TX), Goussen; Williams E. (Houston, TX)
Assignee:	WFI International, Inc. (Houston, TX)
Appl. No.:	D/018,529
Filed:	February 9, 1994

---

Current U.S. Class:	D8/382; D23/262
Current International Class:	0808
Field of Search:	;D23/262,260,264,265 ;D8/382 ;285/334.2,341

---

References Cited [Referenced By]

---

U.S. Patent Documents

D243456	February 1977	Ryan
D243457	February 1977	Ryan
D254266	February 1980	Taberiou
D262397	December 1981	Ryan
D267505	January 1983	Ryan
D274549	July 1984	Ryan
D282867	March 1986	Ryan et al.
D282961	March 1986	Byan
D293710	January 1988	Woods
625155	May 1899	Dresser
1901201	March 1933	Taylor
2109915	March 1938	Watts
2328298	August 1943	Santhoff
2355871	August 1944	Kraft
2701149	February 1955	Kreidel et al.
3254909	June 1966	Ver Nooy
3667783	June 1972	Sotolongo
4438955	March 1984	Ryan
4450613	May 1984	Ryan et al.

Foreign Patent Documents

	1188438		Oct 1985		SU
	510509		Aug 1939		GB

Other References

European Products "Promat Weldoflange," Promat Nipoflange, and Promat Reinforced Nipoflange, pp. 35-30 (date not provided). . WFI Spec. Sheet Therma-Connections, p. 34, Sep., 1980. . WFI International, Inc., Forged Piping and Vessel Components Catalog, 1987..

Primary Examiner: Lieberman; Lucy
Attorney, Agent or Firm: Pravel, Hewitt, Kimball & Krieger