US1452004A - Valve coupling for tubular wells - Google Patents

Description

Apr. 17, 1923. 1,452,0Q4

- c. 1.. SAVIDGE v VALVE COUPLING FOR TUBULAR WELLS Filed Nov. 8, 1921 Patented Apr. 17, 1923.

Tittle CLINTON L. SAVIDGE, OF CALLAVVAY, NEBRASKA.

VALVE COUPLING FOR TUBULAR lVELLS.

Application filed November 8, 1921.

To all whom it may concern:

Be it known that I, CLINTON L. SAVIDGE,

a citizen of the United States, residing at Calla-way, in the county of Custer and State of Nebraska, have invented certain new and useful Improvements in Valve Couplings for Tubular ells, of which the following is a specification. This invention relates to well apparatus the provision of means for permitting the coupling of a lower or standing valve with the upper or working valve of a tubular well pump, so as to permit the simultaneous raising or lowering of said valves.

In well pumps the standing or lower valve and the plunger or working valve have no means of inter-connection so that it is necessary to have two distinct operations when it is desired to pull the valves or to lower the valves in place.

In some instances, means is provided for permitting the valve to be screwed together, but this is impractical and has been abanfound that when the pump rod becomes uncoupled from any cause whatever, from the working or plunger valve and it becomes necessary to screw the pump rod into the valve again, the plunger or operating valve will engage and screw onto the lower or check valve. This of course, necessitates the pulling of both of the valves to permit the disconnection thereof.

It is therefore a prime object of the in vention to provide a novel coupling for connecting the two valves together which will permit the simultaneous raising and lowering of the valve and free rotation of the upper or plunger valve without the coupling of the lower or standing valve thereto.

A still further object of the invention is the provision of means for forming the coupling per se, so as to allow the ready engaging and disengaging of the two parts and to insure the connection of the two parts against accidental displacement when. the same are coupled together.

With these and other objects in view, the invention consists in the novel construction, arrangement and formation of parts, as will be hereinafter more specifically described, claimed and illustrated in the accompanying drawings, forming a part of this specification, in which drawings;

Figure 1 is a side elevation of the upper and the primary object of the invention is cloned by deep well men, as it has been- Serial No. 513,801.

or working valve and the lower or standing valve operatively connected together and in a well casing, parts of the upper or working valve being shown in section.

Figure 2 is a detail perspective view of a lower end of the. working or upper valve, and the upper end of the lower or standing valve showing the interlocking connection means carried by said valves.

Figure is a detail horizontal section through the valve with the locking lugs in the guide slots prior to being turned to their locking position.

Figure at is a similar View showing the lugs in their locking position.

Referring to the drawings in detail, wherein similar reference characters desig' nate corresponding parts throughout the several views, the letter A indicates the upper or working valve; B, the lower or standing valve; and C a well casing.

The upper or working valve A is of the ordinary or any preferred construction with the exception of the means D carried thereby for engaging the means E carried by the lower or standing valve B. This lower or standing valve B is of the usual or any preferred construction with the exception of the means E carried thereby.

The locking means D carried by the plunger or upper valve A consists of a depending sleeve 10, which may be formed integral with or secured in any preferred manner to the extreme lower end of the plunger or working valve A. The inner surface of the sleeve 10 is provided at diametrically opposite points with inwardly extending guide slots 11. These guide slots 11 communicate at their ends with oppositely directed locking slots 12, the lower faces of which are provided with locking notches 13, the purpose of which will be hereinafter more fully described. The lower ends of the opposite side walls of the guide slots 11 are provided with inclined or bevelled leading faces 14, the purpose of which will be hereinafter more fully described. The end walls of these slots also have their lower ends provided with similar guide faces 15.

The means E carried by the lower or standing valve for cooperating with the means D carried by the upper or operating valve A consists of a hollow stud 20 which may be internally threaded as at 21 for receiving the usual plunger rod. This is not necessary, however, as the plunger rod need loo

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