Coupling and nut assembly for a fluid purification system

Description

FIG. 1 is a right front perspective exploded view of a coupling and a nut according to the present invention;

FIG. 2 is a front elevational exploded view of the assembly shown in FIG. 1;

FIG. 3 is a front elevational view of the assembly shown in FIG. 1, and showing the coupling and the nut assembled;

FIG. 4 is a left end elevational view of the assembly shown in FIG. 3;

FIG. 5 is a right end elevational view of the assembly shown in FIG. 3;

FIG. 6 is a right front perspective exploded view of a second embodiment of the present invention and illustrating a coupling and a nut;

FIG. 7 is a right end elevational view of the assembly shown in FIG. 6, when assembled;

FIG. 8 is a right front perspective exploded view of a third embodiment of the present invention illustrating a coupling and a nut;

FIG. 9 is a front elevational exploded view of the assembly shown in FIG. 8;

FIG. 10 is a front elevational view of the assembly shown in FIG. 8, and showing the coupling and the nut assembled;

FIG. 11 is a left end elevational view of the assembly shown in FIG. 10;

FIG. 12 is a right end elevational view of the assembly shown in FIG. 10;

FIG. 13 is a right front perspective exploded view of a fourth embodiment of the present invention illustrating a coupling and a nut;

FIG. 14 is a right end elevational view of the assembly shown in FIG. 13, when assembled; and,

FIG. 15 is a left end elevational view showing only the nut illustrated in FIGS. 2 and 9.

The opposite elevational views of FIGS. 2, 3, 9 and 10 are mirror images of the perspective views.

In addition to the first embodiment, FIGS. 2, 3 and 4 are also representative views for the respective views of the second embodiment of the present invention.

In addition to the third embodiment, FIGS. 9, 10 and 11 are also representative views for the respective views of the fourth embodiment of the present invention.

Claims

The ornamental design for a coupling and nut assembly for a fluid purification system, as shown and described.

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Inventors:	Yuen; Po S. (Scarsdale, NY)
Appl. No.:	D/061,742
Filed:	October 30, 1996

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Current U.S. Class:	D23/262
Current International Class:	2301
Field of Search:	;D23/259,262,266,269 ;D24/129 ;138/109 ;285/33-35,86-88,148.1,148.6,245-247,315-317,331,343,354

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References Cited [Referenced By]

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U.S. Patent Documents

H1272	January 1994	Machado et al.
D315400	March 1991	Medvick
D333179	February 1993	Mikiya et al.
3184256	May 1965	Zavertnik
3245700	April 1966	Appleton
3306319	February 1967	Kendt et al.
3593743	July 1971	Guth
4736969	April 1988	Fouts
5487833	January 1996	Fife et al.

Other References

ARO Air Systems Components Catalog, "210-212 Coupler" and "210-227 Coupler" , p. 26, Jan. 1983. . Imperial Fluid Transmission Components Catalog Number 114-C, "Male Pipe Thread", p. 116, Dec. 1982. . Cole-Parmer Catalog, "Taper Miniature Plastic Fitting 06359-57", p. 346, Dec. 1992..

Primary Examiner: Douglas; Alan P.
Assistant Examiner: Hecker; Reid
Attorney, Agent or Firm: Shlesinger, Arkwright & Garvey LLP