US1025977A - Standing-valve. - Google Patents

Description

A. J. HENDERSON.

STANDING VALVE.

APPLIOATION FILED NOV. 21, 1911.

1,025,977. Patented May 14, 1912. El E. I 13:5"- E l I 11 1 x10 liii g, 6

W/YWESSLIS 2 VENTOR q 17 A .of said seat (whichever end be directed UNITED STATES PATENT orr on.

ANDREW J. HENDERSON, 0F SARATOGA, TEXAS.

STANDING-VALVE.

Specification of Letters Patent.

Patented May 14, 1912.

Application filed November 27, 1911. Serial No. 662,635.

T 0 all whom it may concern.

Be it known that I, ANDREW J. HENDEIF sox, a citizen of the United States, residing ..at Saratoga. in the county of Hardin and State of Texas. have invented certain new and useful Improvements in Standing- Valves. of which the following is a specification.

Thechief objects of this invention are to increase .the efliciencyand durability of standing valves for deep oil wells having strong pressure and to facilitate the placing and removal of such valves. v

To these ends the said invention consists in the construction and combination of parts hereinafter more particularly set forth and claimed.

In the'accompanying drawings: Figure 1 represents a vertical section through a standing valve embodying -my invention andcoiitiguous or neighboring parts; and Fig. 2, a side elevation of the valve and valve casing, the several parts thereof being slightly separated but arranged in normal order.

The ball valve 1 rests normally on a reversible, detachable annular seat 2, which is provided at its middle with an external integral annular collar'3 that rests on the upper end of a valve body 4, the lower end downward) resting on an internal annular shoulder or fixed collar 5 of said valve body. so that said seat is doubly supported by the latter. 'It is normally held in place thereon by the action of external screw-threads 6 of the upper end of the valve body, engaging internal screw-thrcads 7 of the solid annular lower part of the body 8 of the valve easing whereby the lower end of said body is drawn tightly down toward collar 3 and an external annular shoulder of said body, bearing against the same. The valve cage 9 ofsaid body is integral wi hthe latter and ends at the top in a collar 10. which is internally screw-threaded at 11 to engage a screw-threaded. icker-rod 18 (dotted lines) for lifting it at need in that way. Ordinarily these threads 11 are not used.

12 lesignates a coupling collar or couplingsleeve, which is internally screw-- mthreaded in its ends to engage respectively the perforated tubular screen-section 13 and pipe section 14, concentric with the valve body tiabove its middle with screw-threads in i the said coupling dering them worthless.

The said coupling provide .1;

the wall of a bore of reduced diameter for engaging exterior screw-threads won the lower end of the valve body: also, below its middle with screw-threads 17 in-th'e wall of a bore ,of still less diameter for engaging a. depending tube 19 known as the suction tube or gas-anchor, which formsa pocket to hold cording to the quantity of the latter. Said valve'body is provided at each end with a ascending gas and may. vary in length ac-' corresponding recess for the valve'seat and externah'screW-threads anda shoulder, in orderthat either end of said 'body'may 'fit which will bear against one of said shoulders, the other end of said body then screwing into the-valve casing and receiving: the valve seat, so that said body is perfectly reversible.

Heretofore it has been common in wells" of ,this nature to rely on supporting the valvecasing in the valve bodybytlie fri'ctionof washers, a collar or internal shoulder being provided below them .to prevent the dropping of the said casing when the washers wear out; but this will not prevent the casing from becoming loose in such circumstances and holding the valve seat irregularly with resulting unevenness and leakage. The absolute security given against this by my engaging screw-threads is a valuable improvement. Since the suction tube or gas-anchor screws into the coupling, and not into the valve casing. as heretofore insuch wells, the valve and valve body can be removed without injuring or dislodging the has been abandoncd aiul it becomes desirable to withdraw the mechanism. including the standing valve in good couditioirfor use visewliere.

The coupling collar or sleeve with its four eries of, i'v' $tl!i'*flil! is. a novel and useful feature in standing valve equipment and is thus adapted to perform several different functions.

The working-barrel above described, like the valve'seat is also reversible and to this end has both its ends of the same diameter and provided externally with screw-threads of the same size. Internally both itsends are provided with same size to receive said valve seat.

Having thus described my invention, what I claim as new and desire to secure by Let 'ters Patent is:

1. In combination with the screen pipe and upper tubing ofa well and a coupling detachably connecting the same, a tubular part also screwing into said coupling at its lower end and having two external annular shoulders, the lower of which'bears 0n the top "of said coupling, a valve cage screwing on the upper end of said tubular part and bearing at its lower end against the upper annular shoulder of said part, a valve within said cage and a valve seat held in place between said cage and said tubular part substantially as set forth.

2. A reversible valve body having screwthreads at each end and integral annular shoulders between said screw-threads and unthreaded middle portion, in combination with a supporting device and a valve cage, each of which is adapted to engage the annular recesses of the threads of either end of said valve body and to bear against either one of said annular shoulders. i

3. A valve seat, valve and cage, m combination with a supporting coupling and a reversible valve body having at each end a recess for said valve, external screw-threads and an external annular shoulder, the said cagev and coupling being adapted to screw on either end of said body and bearagainst either annular shoulder substantially as set forth.

4. In combination, a coupling, a valvethe same diameter and provided with internal recesses to receive said valve-seat and connecting said coupling and vali'e-casing by means of screw-threaded engagement therewith.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses. I

ANDREW J. HENDERSON.' Witnesses:

E. H. MEYER, 'R. H. ROWE.

Images