Ball valve

Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History

FIG. 1 is a front perspective view of a ball valve showing my new design;

FIG. 2 is a front elevational view thereof, the rear elevational view being a mirror image of the front elevational view;

FIG. 3 is a right side elevational view thereof, the left side elevational view being a mirror image of the right side elevational view;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a cross-sectional view taken along the line 6—6 in FIG. 4.


The ornamental design for a ball valve, as shown and described.

Referenced Cited
U.S. Patent Documents
D172662 July 1954 Clade
4608199 August 26, 1986 Caplan et al.
D291229 August 4, 1987 Kunz
D291230 August 4, 1987 Kunz
D297254 August 16, 1988 Odate et al.
D366693 January 30, 1996 Gregor
D372073 July 23, 1996 Ozaki et al.
D374066 September 24, 1996 Gregor
5553831 September 10, 1996 Ozaki et al.
D432633 October 24, 2000 Higgins et al.
D432634 October 24, 2000 Higgins et al.
D433105 October 31, 2000 Mirth et al.
D455474 April 9, 2002 Knobel et al.
D471963 March 18, 2003 Chiu
6591859 July 15, 2003 Shih
Foreign Patent Documents
570808 February 1982 JP
1112773 June 2001 JP
Other references
  • Asahi AV Valve Catalogue, Asahi Yukizai Kogyo Co., Ltd., Tokyo, Japan, Sep. 1974, p. 17.
Patent History
Patent number: D522618
Type: Grant
Filed: Apr 14, 2003
Date of Patent: Jun 6, 2006
Assignee: Asahi Organic Chemicals Industry Co., Ltd. (Nobeoka)
Inventor: Hiroyuki Matsushita (Nobeoka)
Primary Examiner: Nelson C. Holtje
Attorney: Burns, Doane, Swecker & Mathis, L.L.P.
Application Number: 29/179,613