Adjustable operating rod for a hydrant

Abstract

An adjustable operating rod assembly is provided. In one embodiment a telescoping rod and tube are provided such that the length of the operating rod can be selectively adjusted in order to accommodate fluid inlet pipes of various lengths and regardless of manufacturer.

Claims

1. A fluid delivery hydrant, comprising: a fluid housing comprising an inlet and an outlet and a fluid inlet pipe interconnected to said inlet of the fluid housing; an operating rod positioned at least partially within said fluid inlet pipe and in operable communication with an inlet valve; the length of said operating rod being adjustable and further comprising: an inner rod having a first end and a second end; an outer tube having a first end and a second end, said outer tube having an inner diameter greater than an outer diameter of said inner rod and at least a portion of the length of said inner rod being disposed within at least a portion of the length of said outer tube; at least one aperture provided in said outer tube and at least one aperture provided in said inner rod; and a substantially rigid member for optionally inserting into at least one of the outer tube and the inner rod to secure said inner rod and said outer tube at a desired length; and at least one of the outer tube and the inner rod comprising a surface for receiving a tool, such that the operating rod is adapted to receive and be manipulated by a tool.

2. The fluid delivery hydrant of claim 1, wherein said apertures provided in said inner rod and in said outer tube have approximately the same dimensions.

3. The fluid delivery hydrant of claim 1, wherein said outer tube is at least one of associated with a handle that selectively moves said operating rod and selectively associated with a key for selectively moving said operating rod.

4. The fluid delivery hydrant of claim 3, wherein said outer tube is associated with the inlet valve by way of an adapter.

5. The fluid delivery hydrant of claim 1, wherein said inner rod is associated with said inlet valve.

6. The fluid delivery hydrant of claim 1, wherein said outer tube is associated with a handle.

7. The fluid delivery hydrant of claim 1, wherein said inner rod is at least partially hollow.

8. The fluid delivery hydrant of claim 1, wherein said operating rod is associated with a handle by way of a stem screw positioned at least partially within said housing, said stem screw including a threaded portion, and a drain valve with a first end operably associated with said stem screw and a second end operatively associated with said first end of said operating rod, wherein rotation of said stem screw moves said drain valve along a longitudinal axis, said drain valve being associated with said operating rod, whereby said operating rod is moved between said first position and said second position, wherein said drain valve is substantially prevented from rotating, and wherein said stem screw does not move substantially along said longitudinal axis.

9. A fluid delivery hydrant, comprising: a fluid housing comprising an inlet and an outlet; an inlet valve for controlling a fluid flow associated with the fluid delivery hydrant; and an operating rod associated with and in communication with the inlet valve, the length of the operating rod being adjustable; the operating rod comprising a first member and a second member, wherein a first end of the first member is in communication with at least one of a handle and a key to control movement of the operating rod, and a second end of the first member comprises an open end that receives a first end of the second member; the second member comprising a second end in communication with the inlet valve; wherein the first member and the second member are provided substantially coaxially; the first member and the second member comprising telescoping members that are selectively securable wherein a total length of the operating rod is adjustable; and wherein the first end of the first member and the first end of the second member comprise a surface for receiving a tool, such that the operating rod is adapted to receive and be manipulated by a tool.

10. The fluid delivery hydrant of claim 9, wherein at least one of the first member and the second member comprise a spring-loaded ball for securing the total length.

11. The fluid delivery hydrant of claim 9, wherein said first member is associated with said second member via a third member.

12. The fluid delivery hydrant of claim 9, wherein said first member and said second member each comprise at least one aperture adapted to receive a member for securing a relative position of the first member and the second member.

13. The fluid delivery hydrant of claim 12, wherein said first member and said second member are selectively interconnected by at least one of a pin, a cotter pin, an e-clip, a c-clip, a screw, a threaded interconnection, and a bolt.

14. The fluid delivery hydrant of claim 9, wherein said second member is connected to a handle by the first member.

15. The fluid delivery hydrant of claim 9, wherein said first member is connected to the inlet valve by the second member.

16. The fluid delivery hydrant of claim 9, further comprising a third member provided between the first member and the second member to increase a total length of the operating rod.

17. The fluid delivery hydrant of claim 9, wherein said operating rod is associated with a handle by way of a stem screw positioned at least partially within said housing, said stem screw including a threaded portion, and a drain valve with a first end operably associated with said stem screw and a second end operatively associated with said first end of said first member, wherein rotation of said stem screw moves said drain valve along said longitudinal axis, said drain valve being associated with said operating rod whereby said operating rod is moved between said first position and said second position, wherein said drain valve is substantially prevented from rotating, and wherein said stem screw does not move substantially along said longitudinal axis.

18. A fluid delivery hydrant, comprising: a fluid housing comprising an inlet and an outlet; an inlet valve for controlling a fluid flow associated with the fluid delivery hydrant; and an operating rod associated with and in communication with the inlet valve, the length of the operating rod being adjustable; the operating rod comprising a first member and a second member, wherein a first end of the first member is in communication with at least one of a handle and a key to control movement of the operating rod, and a second end of the first member comprises an end that receives a first end of the second member; the second member comprising a second end in communication with the inlet valve; and the first member and the second member comprising telescoping members that are selectively securable wherein a total length of the operating rod is adjustable; a rigid member for optionally inserting into at least one of a plurality of apertures provided in the first member and the second member to connect the first member and the second member at a desired total length; and the first end of the first member and the first end of the second member comprising an outer surface for receiving a tool, such that each of the first member and the second member are adapted to receive and be manipulated by a tool and operate the inlet valve.

19. The fluid delivery hydrant of claim 18, wherein the first member and the second member each comprise a plurality of apertures for receiving the rigid member.

20. The fluid delivery hydrant of claim 18, wherein the first member comprises a tube, and wherein a portion of the second member is received within the first member.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and together with the general description of the disclosure given above and the detailed description of the drawings given below, serve to explain the principles of the disclosures.

(2) FIG. 1 is a partial cross sectional view of a typical hydrant assembly;

(3) FIG. 2 is a cross-sectional elevation view of a hydrant assembly with an adjustable operating rod according to one embodiment of the invention;

(4) FIG. 3 is an elevation view of the adjustable operating rod shown in FIG. 2;

(5) FIG. 4 is a perspective view of the adjustable operating rod of FIG. 2;

(6) FIG. 5 is an exploded elevation view of the operating rod of FIG. 1;

(7) FIG. 6 is an exploded perspective view of the operating rod of FIG. 2;

(8) FIG. 7 is an exploded perspective view of another embodiment of the present invention;

(9) FIG. 8 is a perspective view of the embodiment of the present invention shown in FIG. 7;

(10) FIG. 9 is a perspective view of another embodiment of the present invention similar to that of FIG. 7; and

(11) FIG. 10 is another embodiment of the present invention similar to that shown in FIG. 7.

(12) To assist in the understanding of one embodiment of the present invention the following list of components and associated numbering found in the drawings is provided herein:

(13) TABLE-US-00001 # Components 2 Hydrant assembly 6 Housing 10 Handle 14 Fluid inlet pipe 22 Inlet fitting 26 Operating rod 30 Plunger 34 Inlet valve 36 Outlet 40 Vent 44 Adjustable operating rod 48 Inner rod 52 Outer tube 56 Aperture 60 Pin 64 First end 68 Hexagonal outer surface 76 Second end 80 Adapter 100 Hydrant Assembly 104 First Member 108 Second Member 112 Third Member 114 First end 116 Second end 118 First end 120 Second end 122 First end 124 Second end 126 First Portion 128 Second Portion 134 Inlet Valve 156 Aperture 160 Pin

(14) It should be understood that the drawings are not necessarily to scale. In certain instances, details that are not necessary for an understanding of the disclosure or that render other details difficult to perceive may have been omitted. It should be understood, of course, that the disclosure is not necessarily limited to the particular embodiments illustrated herein.

DETAILED DESCRIPTION

(15) FIG. 1 is a hydrant assembly 2 of the prior art that generally includes a housing 6 that is interconnected to a fluid inlet pipe 14. A handle 10 is also operatively associated with the housing 6. The fluid inlet pipe 14 is also interconnected to an inlet fitting 22 that is associated with the fluid source of a building. The fluid inlet pipe 14 includes an operating rod 26 that is associated with the handle 10 that is interconnected to a plunger 30 that selectively moves into and out of the inlet fitting 22 to form an inlet valve 34. As used herein plunger refers to any device or member that selectively moves to control the flow of fluid through the fluid inlet pipe 6. Rotation of the handle 10 moves the operating rod 26 and thus moves the plunger 30 into or out of the inlet fitting 22 to begin or cease the flow of fluid through the fluid inlet pipe 14.

(16) Referring now to FIGS. 2-6, an adjustable operating rod 44 according to various embodiments of the present invention is shown. Generally, operating rods 44 are provided in standard sizes, for example, 8 inch, 10 inch and 12 inch lengths. Obvious problems arise when, for example, a plumber attempts to install an 8 inch operating rod or a 12 inch operating rod into a system requiring a 10 inch operating rod. By not having the proper length operating rod on hand, time and complications related to the repair procedure are increased. The adjustable operating rod 44 includes an inner rod 48 fitted within a concentric outer tube 52 When not interconnected, the rod 48 and the tube 52 are translatable with respect to one another in a telescoping manner. In a preferred embodiment, the outer tube 52 is provided with a plurality of holes or apertures 56 for aligning with corresponding apertures of the rod 48 and for further receiving a pin 60 to secure the rod 48 and tube 52 at a desired length. The location of the apertures 56 in the tube 52 in combination with the position of one or more apertures on the rod 48, correspond to final working lengths of the secured assembly (e.g. 8 inch, 10 inch, 12 inch, etc.). Accordingly, embodiments of the present invention are suitable for use with a variety of hydrant assemblies and may be quickly adjusted in the field to be compatible with a variety of existing systems.

(17) In one embodiment, a first end 64 of the rod 48 comprises a hexagonal outer surface 68 for receiving a tool. The hexagonal outer surface 68 is provided as a fail-safe element, such that if the tube 52 were to become disconnected from the inner rod 48, the inner rod 48 would not be stranded within the tube. The hexagonal outer surface may be accessed, loosened, and/or removed by various tools. One of skill in the art will recognize that any number of similar tool-receiving features may be provided to assist in the removal of the inner rod 48 in these situations.

(18) Although FIGS. 2-6 depict a pin 60 according to one embodiment, it will be expressly understood that the present invention is not limited to a particular pin, pin arrangement, or even a particular number of pins. Indeed, cotter pins, e-clips, c-clips, screws, clevises, and various similar devices are within the scope and spirit of the present invention. Pins of the present invention are contemplated as being generally easy to install and remove, fit inside the hydrant and are adapted to survive the life of the product.

(19) FIG. 5 provides a cross-sectional view of the adjustable operating rod 44 according to one embodiment of the present invention. To provide the desired length, the inner rod 48 is slidingly engaged within the outer tube 52. One of skill in the art will appreciate that the rod, i.e., the member that interconnects to the inlet valve 34, may be hollow and the tube, i.e., the component that interconnects to the handle, may be solid without departing from the scope of the invention. Further, both the rod 48 and the tube may be completely or partially hollow. The outer surface of the inner rod 48 and the inner surface of the outer tube 52 may include a key and a key way, corresponding splines, or other engaging features that rotationally fix the inner rod 48 to the outer tube 52. The inner rod 48 and the outer tube 52 may be connected at least in part by mating spline features, such as one or more male features that mate with one more female features.

(20) The inner rod comprises a plurality of apertures 56 for receiving a pin 60. Although the figures depict the apertures 56 arranged linearly, some embodiments of the present invention comprise an outer tube 52 and/or inner rod 48 with a series of radially disposed apertures, such that the outer tube 52 and inner rod 48 may be secured at various rotational orientations. While various embodiments contemplate an inner rod 48 having a plurality of apertures corresponding to a plurality of apertures provided on the outer tube 52, it will be expressly recognized that the inner rod 48 and outer tube 52 need not have complementary apertures. For example, one embodiment contemplates the inner rod 48 having a single aperture which may be aligned with any one of a plurality of radially disposed apertures in the outer tube 52 or vice versa. In another embodiment, it is contemplated that the outer tube 52 and inner rod 48 each comprise a pair of apertures that align or correspond to one another, thereby enabling a pin or connector to be disposed through the entire diameter of the outer tube 52.

(21) FIGS. 7-10 illustrate another method of rendering an operating rod 100 adjustable. More specifically, in this embodiment of the present invention, the operating rod 100 includes three componentsa first member 104, a second member 108, and a third member 112which are fixed relative to each other with a pin 160 that is inserted through apertures 156 similar to that described above. One of skill in the art will appreciate that more than three components interconnected in any number of ways as discussed herein, or generally known in the art, can be employed to provide the contemplated adjustability.

(22) In this embodiment, the first member 104 is interconnected to the second member 108, which is further interconnected to a third member 112. The first component includes a first end 114 and a second end 116. The first end 114 is adapted to receive a handle or a key, which controls the movement of the operating rod 100. The second end 116 is opened and receives a first end 118 of the second member 108. One of skill in the art will appreciate that the second end 116 may be inserted or otherwise interconnected to the first end 118 of the second member 108 without departing from the scope of the invention. The second member further includes a second end 120, which is opened for receiving a first end 122 of the third member 112. The second end 124 of the third member 112 is associated with an inlet valve 134. In this embodiment, the first ends 114, 118, and 122 of the components may be adapted to receive a key or a handle. In addition, the second member 108 comprises a first portion 126 and a second portion 128, wherein the first portion 126 has a diameter that is less than the diameter of the second portion 128. In operation, the smaller diameter first portion is inserted into the open, second end 116 of the first member. Again, one of skill in the art will appreciate that the first end 116 of the first member 104 may be inserted or otherwise interconnected to the second member 108.

(23) Referring now to FIG. 9, a second way of assembling the control rod 100 of this embodiment is shown. Here, the first member is omitted and the second portion is interconnected to the third member 112. The second member 108 and the third member 112 are interconnected by way of a pin 160 that is inserted through apertures 156 in the respective members. One of skill in the art will appreciate that other interconnected mechanisms are contemplated. This assembly shows that the elongated assembly of FIGS. 7 and 8 can be shortened as needed.

(24) FIG. 10 shows yet another way of interconnecting the members. Here, the first member 104 is interconnected to the third member 112. Again, a pin 160 is used, which is placed within apertures 156 of adjacent members, to interconnect the first member to the third member. This configuration also illustrates how a multi-membered operating rod 100 allows the end user to selectively alter operating rod length to accommodate fluid inlet pipes of various lengths.

(25) While various embodiments of the present invention have been described in detail, it is apparent that modifications and alterations of those embodiments will occur to those skilled in the art. However, it is to be expressly understood that such modifications and alterations are within the scope and spirit of the present invention, as set forth in the following claims. Further, the invention(s) described herein are capable of other embodiments and of being practiced or of being carried out in various ways. In addition, it is to be understood that the phraseology and terminology used herein is for the purposes of description and should not be regarded as limiting. The use of including, comprising, or adding and variations thereof herein are meant to encompass the items listed thereafter and equivalents thereof, as well as, additional items.