US1403359A

US1403359A - Foot valve for well casings

Info

Publication number: US1403359A
Authority: US
Inventors: Jr Percival B Turpin
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-03-06
Filing date: 1919-03-06
Publication date: 1922-01-10
Anticipated expiration: 1939-01-10

Description

P. B. TURPIN, 111.

l FOOT VALVE FOR WELL CASINGS.

APPLICATxoN HLED 1111111.15. 1919. RENEwEn 1uNE 7.1921.

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., WITNESSES P, B. TURRIN, 1R. FOOT VALVE FOR WELL CASINGS. APPLICATION FILED MAR 6, 1919-RENEWED JUNE 7, 1921.

43,359 A mem-,ed Jan. M1922..

3 SHEETS-SHEET 2.

P. B. TURP.|N,'1H.

Y FOOT VALVE FOR WELL CASINGS.

APPLICATION FILED MAR` @i 1919. RENEWED JUNE 7. 192i.'

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PEBCIVAL B. TURPIEN, JR., F Tlil, FLORIDA..

F002? VALVE EUR @TELL CSINGS.

Application filed March 6,

i 'o di?, w ,tom t 'may concern.:

lie it known that l, ljnncrven B. Timmie, Jr. a citizen of the United lStates, and a resident or Tampa, in the county of Hillsborough and State ci Florida, have invented a new and improved Foot Valve iior TWell Casings, oi` which the following is a Jruil, clear, and exact description.

'lhe present invention relates to new and useful improvements in valves, and pertains more particularly to a valve adapted ttor use in vell casings, and whereby the use of which eliminates the necessity of employing a drop pipe ordinarily necessary in well construction.

The primary object oi the invention is to construct valve in such a manner that it may be removably and adjustably secured within a well casing.

A further object of the invention is to provide a toot valve which is capable of being positioned at any desired point in the well casing.

il ,further object of the invention is to provide a 'loot valve which when positioned,

rovides an air-tight joint between the body ot' the valve and the well casing, thus greatly increasing the ei'riciency ot the valve.

A further object oi' the invention is to so construct a valvev of this character that all of its several parts are readily removable and accessible for the purpose of renewal or repair.

Reference is to be had to the accompanying drawings forming a part of this specilication in which like characters indicate corresponding parts in all the views, and in which- Figure 1 is a vertical sectional view of: a well casing with the foot valve inserted therein;

Fig. 2 is a similar view showing the toot valve secured in place in a well casing;

Fig. 3 is a transverse sectional view on the line 3-3 oi Fig. 1;

Fig. i is a transverse sectional view on the line 4.-4: 0f 1Fig. l;

Fig. 5 is a detail view oi' a portion of the retaining wedge;

Fig. 6 is a sectional view of the tool and its centering device used in the removal of the foot valve from the casing;

rig, 7 is a sectional view on the line 7-7 of Fig. 6;

Referring more particularly to the drawings, the reference character 10 designates Specication of Letters etent.

f, Serial No. 2505996. Renewed .lune i921.

a well casing, which is oi' the ordinary construction and forms no particular part of the present invention.

,f-idapted to be secured within the well casing 10, is a casing 11, one end of which is tapered or reduced as at 12, said reduced end e 12 being provided with three equidistantly spaced slots 13, which extend throughout the reduced end 12, as shown in Figures l and 2. rllhe upper extremity of the. reduced end 12 is provided with a screw thread le, and threaded thereon is ring 15 provided on its periphery with a groove 1G, the purposebi which will be hereinafter described.

rlhe lower end oi the casing 11 is provided with screw thread 17, and engaging with said screw thread is the screw-threaded eX- tension 13 o'f a valve chamber 19. rlhe valve chamber 19 is provided with a valve seat 20, and adapted to engage said valve seat 20, is a valve 21, the valve 21 being provided with a depending stem 22, which forms means by which said valve is guided in its vertical movement. Secured to the outer surface of the valve chamber 19, in equidistantly spaced relation, are spring fingers 23, which, as shown, are adapted to engage the inner suriiace of the well casing 10 to frictionally maintain the casing 11 within the casing 10 inthe operation of setting the casing 11. The casing 11 is provided near its lower end, with two parallel grooves 2e, and secured within said grooves by means ci? spring wire bands or the like, 25, is an elastic jacket 26, which though preferably formed of rubber, be 'formed of any other suitable material. This jacket 26, is secured to the upper end ot the casing 11, means or a spring band 27, which lies within the aforementioned groove 16.

Projecting inwardly from the casing 11, at the base of the reduced end l2, is a spider 28, the center portion o1c which is screwthreaded as at 29, Jfor the reception of a suitable tool 30. Suitably mounted on the reduced end 12 or the casing 11, is a split ring 31, which is substantially wedge-'shaped in cross section, and as shown in Figs. 1 and 2, is provided with inwardly projecting lugs 32 adapted to receive the arms 33 of a spider 34. As shown in Fig. 3, these inwardly-projecting lugs 32 are adapted to slide within the slots 13 oi' the reduced end 12, thus preventing rotary movement of the ring 31 with respect to the reduced end 12 of the casing ll. 'lhis spider 33 is provided with a screwthreaded central portion 35, which has greater internal dimensions than the screwthreaded portion 29 of the spider'28, and said screw-threaded portion 35 is adapted to receive the'screvv-threaded end 36 of the tool 37 shown in l? ig. 5. lt willxbe noted that the casing il. is of a smaller diameter1 than the internal diameter of the Well casing l0, and is freely movable longitudinally thereof except for the slight pressure exerted by the spring fingers 23.

ln securing the casing l1 Within the Well casing l0, after the casing ll has been properly positioned, the tool 38 is passed through the opening 35 in the spider 33 and its screwthreaded end 39 is engaged with the screwthreaded opening 29 of the spider 28. U pon rotation of the tool 38, it will be seen that the ring 3l will be-moved longitudinaly of tbey reduced end l2 of the casing ll, by reason of engagement of the shoulder Il() of the tool 33 y with the top face of the body portion 3A of the Vs ider B movement of the rino- 3l longitu'dinally of thereduced end l2 of the casingvll, said ring Will be moved into the space between the casingll and the Well casing l0, asvshovvn in F 2, forcing the elastic jacket 26 into engagement With the interior face of the Well casing l0. This positioning of the parts not only serves as a means by which the casing l1 is secured Within the Y casing l0, but also provides a Water-tight joint between the casing ll and the Well casing l0, and preventingthe passage of water by the casing ll, except when it enters through the space provided by the valve 2l disengaging the seat 20, which is occasioned by the operation of a suitable pumping device not forming a part of this invention.

When it is desired to remove the casing` ll from the Well casing l0, the tool 37 shown in Figs. 6 and 7, is inserted into the Well casing l0, and its screw-threaded end 36 is engaged Withthe thread 35 in the spider 3A. It will now be seen that through the medium of the tool 37, the ring 31'is freely movable along the reduced end l2 of the casing l1,

and out of engagement WithA the inner sur! face of the well casing lO.

This tool 37 is provided with a rigidV disk 4-0, and secured to the upper face of said disk is a plurality ofV resilient fingersv lll, These lingers Ll-l are adapted to engage the inner surface of the casing and serve to center the tool 37 in such a manner that Vits screw-threaded end 36 will properly engage the threads 35.

From the foregoing description, it Will be apparent that the presentl invention provides a foot valve for Well casing, which may be secured Within the Well casing at any desired point, and, furthermore, when the foot valve is secured Within the casing, a Waterreosse tight joint is provided and maintained between the foot valve and the Well casing l0.

Having thus described the invention, What j l. A foot valve for Well casings comprising a tubular bodyportion having a tapered end, a valve seat removably secured in the end of the body portion opposite to said tapered end, a flexible sleeve surrounding said body portion, and means interposed betvveen the tapered end of the body portion and said flexible sleeve and movable longitudinally of said bodyv portion for forcing the flexible sleeve intov engagement with the interior of the Well casing for providing` an air-tight joint between said body portion and said vvell casing.

A foot valve for well casings comprising a tubular body portion having a tapered end, a valve seat removably secured in the end of the body portion opposite to said tapered end, a flexible sleeve surroundingv said ybody portion, and an annular tapered collar surrounding the tapered end of the body portion and movable longitudinally thereof for engaging the flexible sleeve with the inner surface of' the Well casing for providing an air-tight joint.

3. A foot valve for Vvvell casings comprising a tubular body portion having aV reduced end, a valve carrying` element provided With a tapered seat removably secured in one end of said'body portion, and a tapered ringembracing said reduced end of the tubular body'portion and movable longitudinally thereof for securing the foot valve Within a Well casing.

A, A foot valve for well casings comprising a valve casing of smaller diameter than the well casing, securing means movable longitudinally of the valve casing and into Iengagement with the Well casing for securing the valve casing inl place, and means engaging the valve casing and said longitudinally movable securing means for moving the latter' longitudinally of the valve casing.

5. A foot valve for Well casings comprising a slotted valve/casing, an annular Wedgeshaped member movable longitudinally of the valve casing for engagement With the Well casing, means carried by said annular Wedge-shaped member and projecting through `the slots'in the valve casing, vand means engaging the valve casing and the means carried by the Wedge-shaped memberI and lying Within the slots of the valve casing for .moving the annular Wedge-shaped member longitudinally of the valve casing.

6. A lfoot valve for Well casing-s comprising a valve casing, an elastic covering surrounding` said valve casing, and means movable longitudinally'of said casing for causing engagement of the elastic covering With the Well casing to retain the valve casing in place therein.

7. loot valve for Well casings comprising a valve casing, an elastic covering surrounding said valve casing, and means movable with respect to said casing for securing the valve casing in place in the Well casing and maintain the elastic covering in Contact Witli the Well casing to provide an air-tight joint.

8. A, oot va ve for Well casings comprising a valve chamber having a reduced slotted end an annular Wedge movable longitudinally oi" said reduced end and into engagement with the Well casing for securinv' tlic valve casing in place Within the Well casing, means for moving the annular Wedge. longitudinally of said reduced end, and means lor guiding said annular wedge in its movement.

9. A device of the character described comprising a valve casing, a valve seat removably secured in one end of said casing, a valve adapted for engagement with said valve seat7 resilient members carried by said valve seat on the exterior thereof, an annular Wedge movable longitudinally of the valve easing7 and means engageable wit-li the valve casing and with arms carried by said annular Wedge for moving the latter longitudinally of tlie valve casing.

l0. ln a 'loot valve for well casings, a valve chamber7 a pliable covering for said chamber, and means interposed between tlie chamber and the pliable covering securing said valve casing Within the Well casing, said securing means serving in combination with the pliable covering to form a Watertiglit joint between the wall casing and the valve casing.

ll. A foot valve for Well casings comprising a valve casing of smaller diameter than the ivell easing and having a reduced end, a valve carried by the lower end of said valve casinr, a pliable covering for said valve casing, a tapered ring movable longitudinally of the reduced end of said valve casing` between the valve casing and tlie pliable covering for securing the valve casing in the Well casing, and means :for moving said tapered rin g PERGlVAL B. TURPN, Jn.