US1419495A - Oil-well pump - Google Patents

Description

C. D. FATOR.

OIL WELL PUMP.

APPLlcATloN man MAR. 1s, m21.

Patented; June 113, E922.

STATES FATEIAT CHARLES .DIBRELL FATOR, OF SAN ANTONIO, TEXAS.

OIL-WELL PUMP.

To all whom t 'may concern.'

Be it known that I, CHARLES DIBRELL FA'ron, a citizen of the United States, residing at San Antonio, in the county of Bexar and State of Texas, have invented certain new and useful Improvements in @il-Well Pumps, of which the following is a specification.

This invention relates to pumps used in connection with wells for oil and other fluid; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed whereby the pump barrel is anchored or locked to the well liner while the pump is at work, and is unlocked at will when the pump and other parts are to be raised in the well.

In the drawings, Figure 1 is a vertical section through the liner of `an oil well provided with a pump having devices for anchoring it to the liner according to this invention. Fig. 2 is a cross-section, taken on the line 2-2 in Fig. 1. Fig. 3 is a crosssection taken on the line 3-3 in Fig. 1. Fig. 4 is a detail showing how the locking arms lock the barrel to the liner.

The well is provided with a perforated liner 5. The pump barrel 6 is arranged inside the liner, and 7 is a tubular pump rod which operates the pump, and which also affords a delivery passage for the oil or other liquid which is pumped from the well. The working parts of the pump and its valves are of any approved construction.

In operating pumps as ordinarily constructed the delivery valves or other parts sometimes become partially obstructed by sand or other material, and when the pump rod is raised in pumping the pump barrel is somtimes raised with it to some extent, which is a disadvantage in working the pump.

In carrying out this invention, a tubular guide 8 is secured to the upper end of the pump barrel by a collar 9, and it has a guide collar 10 secured on its upper end portion.

The pump rod 7 works freely inside the guide 8. A collar 12 is secured to the guide 8 and rests on the collar 9. Locking arms 14 are pivoted by pins 15 to the collar 12, and have serrated faces 16 at their outer ends for engaging with the liner 5. Three arms are preferably provided, and they are normally held in their raised positions, clear of the liner, by any suitable spring or springs 17. A locking pipe 18 is provided, and a p Speccaton of Letters Patent.

Application led March 18, 1921.

Patented J une 1.3, 1922.

Serial No. 453,218.

oonicallocking ring 19 is secured to the lower end of this pipe, and is slidable freely on the tubular guide 8. The locking ring 19 has a shoulder 20 at its upper end which projects under a collar 21 on the tubular guide, and forms a means for raising the pump. The middlel and upper parts of the locking pipe 18 are guided by the collar 10 on the guide pipe.

The locking pipe has a bush 24 at its upper part, and anti-friction rollers 25 are journaled in this bush, and hold the pump rod 7 axially in line with the pump barrel, and permit the pump rod to slide freely.

A collar 26 is secured on the pump rod 7, below the bush 24, and when the pump barrel is to be raised, the collar 26 engages with the bush 24, so that the pump is lifted by means of the pump rod. Flexible connections or chains 27 arey secured to the locking pipe and to the ends of the locking arms, and 28r are .springs for taking up the slack of these chains, so that they will always work to good advantage. hese chains raise the arms out of engagement with the liner before the shoulder 20 touches the collar 21. l/Vhen the parts are in the positions shown in Fig. 1, the pump barrel 6 is not locked to the liner 5, and can be raised and lowered. When the locking pipe is lowered, as shown 1n Fig. 4, the conical locking ring 19 forces the locking arms outwardly into engagement with the liner 5, and prevents the pump barrel from rising until the parts are restored to the positions shown in Fig. 1 by raising the locking pipe.

The pump is supported by the bottom of the well, so that it cannot slide downwardly.

What I claim is:

1. rlhe combination, with a well liner, and a pump arranged therein and provided with a slidable operating rod; of locking arms pivotally connected with the pump barrel, a guide secured to the pump barrel, and a looking device slidable on the said guide and operating when moved in one direction to press the said arms outwardly into locking engagement with the said well liner, said locking device being held clear of the slidable pump rod by the said guide.

2. The combination, with a well liner, and a pump arranged therein; of a tubular guide secure to the pump barrel, locking arms having their lower ends pivotally connected with the pump barrel, and a locking device slidable on the tubular guide and operating,

to raise the pump, by engagement with the said projection, when raised.

4. rllhe y@Ombination with a well liner, and

-a pump arranged therein; of a tubular guide secured to the pump barrel, locking arms having their lower ends pivotally 'connected withfthe pump barrel, a locking device for pressing the saidiarmsoutwardly when lowered, and flexible connections between the free endportionsof the arms and the locking device whichfpull the said arms inwardly out O'f engagement with 4the liner ff Lwhenfthe locking ydevice is raised out-of enr` gagement with the locking arms.

-5. The combination, with a well liner,- and va pumparranged therein; of a tubular. guide secured to the vbarreland havingfa projecting guide collar on its upper part, lockingarms having their lower ends pivotally connected with the pump barrel, a locking pipe slidable vertically over thesaid guide col- .lar and yhaving at its' lower end a conical locking ring slid'alolev on the' tubular guide and operating to press the said arms out--V 6. The combination, with a well liner, and

a pump arranged therein and provided with a pump rod provided with a projection; of a tubular guide secured to theV pump barrel and provided l with a projection, locking arms having their lower ends pivotally connected with the pump barrel, andra locking pipe Aslidable over thetubular guide and having at its lower end; a'conical ring which presses `the locking arms outwardly when vthe `locking vpipe is lowered andwhich raises the pump by engagement with the said projection fon theitubular: guide when the locking pipe raised, said locking pipe having alsoat its upper part-an internal projection which is engaged by the said proj ection' on the )um i rod when the )um D rod israised so that the loelringzpipe and the pump a-re raisedrand lowered by the pump rod.

7. rllhe combination, with' awell liner,l and a pump-arranged therein; of lockingarms Y having their lower ends pivotally connected with the pump barrel, springs which lnormally hold the free'en'd portions'of the lockfing,` arms -outo'lrl engagement with' thewell liner, and a slidable loclring device which operates, when lowered, to press the said arms voutwardly 'into locking engagement with the liner.

In testimony whereof I have affixed my signature.

CHAS. DIBRELLf FATOR.

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