Double check valve

Information

  • Patent Grant
  • D496091
  • Patent Number
    D496,091
  • Date Filed
    Tuesday, June 3, 2003
    21 years ago
  • Date Issued
    Tuesday, September 14, 2004
    20 years ago
  • US Classifications
    Field of Search
    • US
    • 251 25
    • 251 331
    • 137 218
    • 137 512
    • 137 5124
    • 137 5125
    • 137 1518
    • 137 1519
  • International Classifications
    • 2301
    • Term of Grant
      14Years
Abstract
Description




FIG. 1 is a top perspective view of a valve according to a first embodiment of a valve in accordance with the present invention;




FIG. 2 is a left side view of the valve seen in FIG. 1;




FIG. 3 is a right side view of the valve seen in FIG. 1;




FIG. 4 is a bottom view of the valve seen in FIG. 1;




FIG. 5 is a front view of the valve seen in FIG. 1;




FIG. 6 is a top view of the valve seen in FIG. 1;




FIG. 7 is a rear view of the valve seen in FIG. 1;




FIG. 8 is a top perspective view of a second embodiment of a valve in accordance with the present invention;




FIG. 9 is a left side view of the valve seen in FIG. 8;




FIG. 10 is a right side view of the valve seen in FIG. 8;




FIG. 11 is a bottom view of the valve seen in FIG. 8;




FIG. 12 is a front view of the valve seen in FIG. 8;




FIG. 13 is a top view of the valve seen in FIG. 8; and,




FIG. 14 is a rear view of the valve seen in FIG. 8.




The words and numbers appearing on the valve do not form an essential part of the design, apart for their location.



Claims
  • The ornamental design for a double check valve, as shown and described.
US Referenced Citations (4)
Number Name Date Kind
6349736 Dunmire Feb 2002 B1
6396404 McHugh May 2002 B1
6546946 Dunmire Apr 2003 B2
6581626 Noll et al. Jun 2003 B2