US1807741A - Deep well pump - Google Patents

Description

June 2, 1931 F- C. KNlss E1- AL DEEP WELL Pulp Filed Yay 28' i930 'Ziff Patented June 2, 1931 UNITED STATES PATENT? ori-Ica FRANK C. KNLAISS AND RICHARD N. VICKERS, OF SMACKOVER, ARKANSAS DEEP WELL PUMP Application led May 28,

The object of this invention is to provide a pump of such structure that; the fluid raised and discharged will pass around the valves and directly over the same so that sand and sediment cannot settle around the valve and the valves will be kept clean and in operable condition at all times. The invention is illustrated in the accompanying drawings and will be hereinafter Yfully set forth and delined.

In the drawings:

Figure 1 is a side elevation of a pump embodying the invention with the upper casing shown in section,

Fig. 2 is a longitudinal vertical section of the pump, and. r-

Fig. 3 is an enlarg-ed detail longitudinal section through the upper valve taken at a right angle to the plane of Fig. 2.

Inthe drawings, the reference numeral 1 indicates the standing valve seat which is provided with a longitudinal vertical -bore 2 through which the liquid in the well may rise. A cage 3 is secured on the'upper end of this casing 2 and a ball valve 4 is held within said cage and is free to move therein. Threaded onto the upper end of the valve seat 1 is a coupling sleeve 5 which has its upper end internally threaded to receive a coupling body 6 which has a reduced lower end portion 7 arranged within thesleeve 5 and of less diameter than said sleeve so that a passage will be provided around the reduced extension and within the sleeve for the liquid rising from the well. This formation, of course, presents shoulders 8 and from said shoulders passages 9 extend upwardly within the body 6 to a chamber 10 formed in the upper end thereof, as clearly shown. A

chamber 11, .similar to the chamber 10, isv

formed in the lower end ot the body 6 in ulinement with the threaded bore of the extension 7 and a valve seat12 is secured in the extension immediately below the chamber 11 to support a ball valve 13 which plays within said chamber. A locking plug'14 is threaded into thelower end of the extension 7 and serves to retain the valve seat 12 in place. Passages 15 are formed within the coupling '.1 body 6 and diverge upwardlyfrom the cham- 1930. Serial No. 458,634.

ber 11 to open through shoulders 16 formed upon the coupling body 6 adjacent the upper end of the same. A cylinder 17 has its lower end threaded into the chamber 10 and surrounding the lower end of said cylinder and threaded onto the coupling body 6 is -a sleeve 18 which supports the upper casing 19, as shown in Fig. 1, the casing if desired being threaded into said sleeve 18, as will be understood. A plunger 20 is mounted within the cylinder 17 and fits snugly but slidably therein and is provided with a sheath or jacket 21 which likewise fits closely but slidably around the cylinder 17. The sucker rod or other' driving element, indicated at 22, is secured to the upper end of the plunger 20 so that the plunger may be reciprocated vertically within the cylin er.

The construction and arrangement of the several parts of the pump being thus set forth, it is thought the operation will be readily understood.` On the upstroke of the plunger, a partial vacuum will be formed below the same within the cylinder and the water or other liquid at the bottom of the well will rise past the standing valve 4 and iill the space below the upper valve 13 and rise through the upwardly converging passages 9 to the chamber 10 and thence flow into the cylinder. On the ensuing downstroke of the plunger, the standing valve 4 will, oit' course, be seated under the pressure transmitted through the liquid from the plunger and as the liquid cannot flow back through the standing valve it will rise through the plug 14 and the valve seat 12 to lift the valve 1,3 and rise through the passages 15 to the space around the jacket 21 and within the casing 19, it being noted that the valve 13 when resting on the seat 12 will close the same but when it moves upwardly it will not close the passages 15'but will permit a flow through the same. When the plunger again moves upwardly, the standing valve 4 will be unseated but the weight of the liquid above the valve 13 will hold the same on its seat and it will remain seated until the plunger again moves downwardly, whereupon the pressure will unseat said valve 13 and permit escape of the liquid upwardly through the passages 15. Eventually the liquid thus forced into the casing 19 will reach the top of the well and may be directed into discharge pipes and carried to any desired point of use. It will be noted that we have provided an eX- ceedingly simple pump of such construction that the liquid raised to the mouth of the well will be caused to flow around and over the upper valve and thereby keep the same free of sand. Sand may collect around the cage 3 of the standing valve within the sleeve 5 and when the accumulation becomes noticeable the pump may be drawn to the top and the sleeve uncoupled so as to discharge the acs cumulated sand.

Having thus described the invention, we claim:

1. A pump comprising a lower standing valve, a sleeve coupled to and extending upwardly from said standing valve, a coupling body in the upper end of said sleeve having upwardly diverging passages leading from a central chamber at its lower end and upwardl converging passages leading to a central c amber at its upper end, the first-mentioned passages communicating with the space above the body and the last-mentioned passages communicating with the space below the body and within the coupling sleeve, a valve within the chamber in the lower end of the coupling body, a casing coupled to the upper end of said body, a cylinder secured in the upper end of said body within said casing and communicating with the upper chamber in the body, and a plunger working closely within said cylinder.

2. A pump comprising a coupling body having chambers in its upper and lower ends, a casing connected to the upper end of the body and rising therefrom, a cylinder fitted in the chamber in the upper end of the body and extending upwardly therefrom in spaced relation to the casing, a standing valve below said body, means for retaining liquid flowing through the standing valve, passages for said liquid leading from the lower end of the body to the chamber at the upper end thereof, passages leading from the Valved chamber in the lower end of the body to the space at the upper end thereof within the casing, a plunger Working in the cylinder, andV a jacket on the plunger fitting closely around the cylinder.

tures.

FRANK C. KNISS. [Ls] RICHARD N. VICKERS. [1.. s]

In testimony whereof we aiiix our signa

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