Universal gas valve key

• US 20060011881A1
• Filed: 08/24/2005
• Published: 01/19/2006
• Est. Priority Date: 12/31/2003
• Status: Active Grant

• Current Assignee: Lisa Leighton
• Original Assignee: Canterbury Enterprises, Inc.
• Inventors: Leighton, Lisa
• Granted Patent: US 7,055,412 B2
• Time in Patent Office: Days
• US Class Current: 251/291
• CPC Class Codes: B25B 13/06 of socket type
• CPC Class Codes: B25B 13/48 for special purposes

Abstract

A gas valve key is provided having a handle; a longitudinal shaft attached to one end of the handle; and a socket attached to another end of the shaft. The socket has a plurality of cascaded valve stem receiving cavities formed within the socket. Each of the plurality of receiving cavities has successively reduced dimensions, including a first largest cavity forming an opening on one end of the socket. The plurality of cascaded receiving cavities are adapted to receive a valve stem of differing dimensions.

Claims

1-6. -6. (canceled)

7. A universal gas valve key for opening and closing a gas shut-off valve affiliated with a gas fireplace system, the gas shut-off valve having a valve stem with a square cross-section measuring either 5/16 inches wide or ¼

inches wide for operating said gas shut-off valve, said gas valve key adapted to be removably attached to the valve stem, said gas valve key consisting of;

a handle piece comprising,

a generally elliptical-shaped handle portion having a planar profile with opposing sides and a peripheral edge defining the elliptical shape, and

a handle socket portion having a cylindrical shape defining a first axis and a pair of circular ends, one end being integrally formed to said peripheral edge of said handle such that said elliptical-shaped handle is generally transversely oriented and centered with respect the first axis, and the other circular end having a first shaft receiving cavity having a square cross-section disposed therein forming an opening on the other circular end of said socket portion;

a longitudinal shaft formed from a solid bar having a square cross-section defining a second axis and having opposing ends, one end force fit into said first receiving cavity of said handle socket portion to form a rigid interconnection between said handle piece and said longitudinal shaft such that the first axis of said handle socket portion and second axis of said shaft are coincident; and

a second cylindrically-shaped socket defining a third axis and having a pair of circular ends, one end having a second shaft receiving cavity having a square cross-section disposed within a body of said second socket therein forming an opening on the end of said second socket, the other end of said longitudinal shaft force fit into said second receiving cavity of said second socket to form a rigid interconnection between said shaft and second socket such that the second axis of said shaft is coincident with the third axis of said second socket, and the other end of said second socket having only a pair of cascaded stem receiving cavities disposed therein, each having a square cross-section formed within said body of said second socket including, a first cavity adapted to receive a 5/16 inch wide valve stem forming an opening on the other circular end of said second socket and a second cavity adapted to receive a ¼

inch wide valve stem nested within the first cavity;

wherein when said second socket of said valve key is positioned over the valve stem, one of the cascaded stem receiving cavities closely receives the valve stem with a minimal looseness tolerance such that when said handle piece is turned about the second axis defined by said shaft, said gas valve key imparts one of a clockwise or counterclockwise rotational motion and torqued force to the valve stem to one of close or open the gas shut-off valve affiliated with the gas fireplace system.

8. (canceled)

9. A gas valve key consisting essentially of:

a handle piece including a handle portion and a handle socket portion, the handle socket portion defining a pair of ends, one end being integrally formed to said handle portion, the other end having a first shaft receiving cavity having a square cross-section disposed therein forming an opening on the other end of said socket portion;

a longitudinal shaft formed from a solid bar having a square cross-section and defining opposing ends, one end being force fit into said first receiving cavity of said handle socket portion to form a rigid interconnection between said handle piece and said longitudinal shaft; and

a second socket defining a pair of ends, one end having a second shaft receiving cavity defining a square cross-section, the second shaft receiving cavity being disposed within a body of said second socket and forming an opening on said one end of said second socket with the other end of said longitudinal shaft being force fit therein to form a rigid interconnection between said longitudinal shaft and said second socket, the other end of said second socket having a plurality of cascaded stem receiving cavities disposed therein and forming an opening on the other end of said second socket, each cascaded stem receiving cavity having a square cross-section formed within said body of said second socket.

10. The gas valve key of claim 9 wherein the handle portion is a generally elliptical-shaped and defines a planar profile with opposing sides and a peripheral edge defining the elliptical shape.

11. The gas valve key of claim 10 wherein the handle socket portion defines a first axis and said one end of said handle socket portion is integrally formed to said peripheral edge of said handle such that said elliptical-shaped handle is generally transversely oriented and centered with respect the first axis.

12. The gas valve key of claim 9 wherein the handle socket portion defines a cylindrical shape.

13. The gas valve key of claim 9 wherein the pair of ends of said handle socket portion are circular.

14. The gas valve key of claim 9 wherein said handle socket portion defines a first axis and said longitudinal shaft defines a second axis, said handle piece and said longitudinal shaft being rigidly interconnected with said first axis of said handle socket portion being coincident with said second axis of said shaft.

15. The gas valve key of claim 14 wherein said second socket defines a third axis, said shaft and said second socket being rigidly interconnected with the second axis of said shaft being coincident with said third axis of said second socket.

16. The gas valve key of claim 9 wherein said second socket is cylindrically shaped.

17. The gas valve key of claim 9 wherein said ends of said second socket are circular.

18. The gas valve key of claim 9 wherein said other end of said second socket has only a pair of cascaded stem receiving cavities disposed therein.

19. The gas valve key of claim 18 wherein one of said pair of cascaded stem receiving cavities is a first cavity :

being adapted to receive a 5/16 inch wide valve stem.

20. The gas valve key of claim 19 wherein one of said pair of cascaded stem receiving cavities is a second cavity being adapted to receive a ¼

inch wide valve stem.

21. The gas valve key of claim 20 wherein said second cavity is nested within said first cavity.

22. A gas valve key consisting essentially of:

a handle piece including a handle portion and a handle socket portion, the handle socket portion defining a pair of ends, one end being integrally formed to said handle portion, the other end having a first shaft receiving cavity having a square cross-section disposed therein forming an opening on the other end of said socket portion;

a longitudinal shaft formed from a solid bar having a square cross-section and defining opposing ends, one end being force fit into said first receiving cavity of said handle socket portion to form a rigid interconnection between said handle piece and said longitudinal shaft; and

a second socket defining a pair of ends, one end having a second shaft receiving cavity defining a square cross-section, the second shaft receiving cavity being disposed within a body of said second socket and forming an opening on said one end of said second socket with the other end of said longitudinal shaft being force fit therein to form a rigid interconnection between said longitudinal shaft and said second socket, the other end of said second socket having only a pair of cascaded stem receiving cavities disposed therein and forming an opening on the other end of said second socket, each cascaded stem receiving cavity having a square cross-section formed within said body of said second socket.

23. The gas valve key of claim 22 wherein the handle portion is a generally elliptical-shaped and defines a planar profile with opposing sides and a peripheral edge defining the elliptical shape.

24. The gas valve key of claim 22 wherein the handle socket portion defines a first axis and said one end of said handle socket portion is integrally formed to said peripheral edge of said handle such that said elliptical-shaped handle is generally transversely oriented and centered with respect the first axis.

25. The gas valve key of claim 22 wherein said handle socket portion defines a first axis and said longitudinal shaft defines a second axis, said handle piece and said longitudinal shaft being rigidly interconnected with said first axis of said handle socket portion being coincident with said second axis of said shaft.

26. The gas valve key of claim 25 wherein said second socket defines a third axis, said shaft and said second socket being rigidly interconnected with the second axis of said shaft being coincident with said third axis of said second socket.

27. The gas valve key of claim 22 wherein said pair of cascaded stem receiving cavities are first and second cavities, said first cavity being adapted to receive a 5/16 inch wide valve stem, said second cavity being adapted to receive a ¼

inch wide valve stem and being nested within said first cavity.