US2238692A - Force pump - Google Patents

Description

H. LE R. GAGE FORCE PUMP Filed Jan. 16. 1940 April l5, 1941.

INVENTOR ATTO R N EYS Patented Apr. 15, 1941 UNITED STATES rPATENT OFFICE"` FORCE PUMP Howard Le Roy Gage, Stockton, Ill.

Application January 16, 1940, Serial N o. 314,157

4 claims. (CL 10a- 138) i This invention relates to force pufmps of that type located below the frost line and operated from the ground level.

One object' of the invention is to provide a valved piston operating to displace liquid through a hollow piston rod and expel the same above the piston to promote a more eiicient pumping action than in conventional pumps.

Another object of the invention is to provide a simplified actuating means forv the pump piston comprising a hollow piston rod and a connecting rod parallel to and coupled to the piston rod,

for reciprocating therpiston rod.

With the above and other objects in view the invention consists of certain novel details of construction and combinations of parts hereinafter fully described Vand claimed, it being understood that various modifications may be re-v sorted to within the scope of the appended claims without departing from the spirit or sacrificing any of the advantages of the invention.

In the accompanying drawing forming a part of this specification:

Figure l is a longitudinal sectional View of a Well equipped with a pump constructed in accordance with the invention.

Figure 2 is a longitudinal sectional View of the pump cylinder showing the piston in displacing position.

Figure 3 is a top plan of the pump cylinder.

Figure 4 is a cross sectional view of the pump taken on line 4-4 of Figure 2.

Referring now to the drawing in which like characters of reference designate similar parts in the Various views, I designates a well pit II) sunk into the ground and having an apertured bottom to receive the top of a Well casing II- An electric power source I2 is provided for driving a shaft I3 having an eccentric connection with, and driving a rock arm I4, which extends over the well pit lid I5 and is adapted to transmit reciprocatory motion to a vertically disposed connecting rod I6. The rod is disposed in a housing I1 extending to the lid I5.

A pump cylinder I8 is supported in the well casing parallel to, and in spaced relation to, the housing I'I by brackets I8 and 20, formed respectively on an upper head 2| of the cylinder and on a bearing 22 carried by the lower head 23 of the cylinder.

The'upper head 2l is provided with a discharge conduit 24 and disposed below the head is a disc 25 provided with a port 9 which is coni and is provided with a passage 28 opening through the top and the bottom of the piston and .controlled -by a ball check valve 29 which is held within the limits of a valve cage 30 in its open position and closes the passage 28 in its closed position.

A hollow piston rod 3l is secured to the bottom of the piston by radially disposed bracket arms 32 and extends through the bearing 22. The piston `rod is secured at the bottom to a radially disposed link 33 which is connected to the lower end of the connecting rod I6.

A perforated cylindrical guard cylinder 34 is mounted on, and depends from, the link` 33, and is adapted to shield the link 33, piston rod I'I and connecting rod 30, from obstructions in their reciprocatory path, 'l

The discharge conduit 24 extends upwardly through a union 35 having therein a flap valve 36 located above the liquid level in the well. The conduit 24 also is provided with a conventional pressure responsive regulator 31, which is connected by a tube 38 to a pressure operated electric switch 39 which controls the electric supply circuit to the power source I 2. The regulator 3'I is located between the flap valve 36 and a supply tank 40 which is connected to the upper end of the conduit 24 above the liquid level by a pipe 4I.

In operation, the power source I2 oscillates the rocker arm I4, which in turn reciprocates the connecting rod I6. The rod I6 transmits reciprocatory motion to the 'hollow piston rod 3| through the coupling arm 33, to move the piston 21 to its upper and lower` limit of movement. The down stroke of the piston unseals the check valve 29 and permits the liquid to rise through the hollow piston rod 3l andabove the piston. 'I he upward stroke of the piston 2l seats the check valve 29 and displaces the liquid above the piston 2'I from the cylinder and through the flap valves 26 and 36 to the conduit 24 and pipe 4I to the storage tank 40. The pressure regulator 35 receives liquid displaced by the piston and transmits pressure through a small tube 38 to the pressure responsive switch 39 which controls the power source I2.

There is no by-pass in the piston as the hollow piston rod 3I is Welded solid to the piston 21 and on the down stroke, the Water goes through the hollow rod 3I and unseats the check valve 29 ready for the next upstroke.

From the above description it is thought that the construction and operation of the invention will be fully understood without further explanation.

What is claimed is: 1. In a force pump, a pump cylinder having a discharge port opening, a hollow liquid conducting piston rod extending through the bottom of the cylinder and having upwardly disposed bracket arms, a piston located in the cylinder connected to the arms, a check Valve closing the passage at the top of the piston, a housing paral-Q lel to and supporting the cylinder, a connecting rod adapted to freely reciprocate within the housing, and a coupling arm connecting the piston and connecting rods together at their lower ends.

2. In a force pump, a well casing, a connecting rod housing suspended within the casing, a power driven connecting rod normally free from frictional contact in the housing, a pump cylinder disposed parallel to and adjacent to the housing, integral brackets thereon securing the cylinder and housing and receiving the housing, a piston adapted to reciprocate in the cylinder having a liquid controlled one-way port, a check valve controlled discharge passage in the top wall of the cylinder, a hollow piston rod connected to and conducting liquid to the piston and connected to the lower end of the connecting rod exteriorly of the cylinder, a power operated rock arm transmitting reciprocating motion to the connecting rod, and a guard cylinder suspended below the pump cylinder and encircling the lower ends of the piston rod an connecting rod.

3. In a force pump, a tubular connecting rod housing supported at the top and suspending within a well, a connecting rod extending through the housing and adapted to reciprocate therein, a pump cylinder disposed in parallel spaced relation to said housing, a bracket carried by the upper portion of the cylinder frictionally receiving said housing, a bracket carried on and adjustable angularly to align with said upper bracket on the lower portion of the cylinder fixed to the lower extremity of the housing forming connection of the cylindrical housing for suspension on said housing, a piston in the cylinder, a piston rod extending parallel to the connecting rod and below the cylinder, a rigid lateral connecting arm receiving the lower end of the piston and connecting rods, a power source reciprocating the connecting rod in the housing for transmitting motion to said piston, and valved supply and discharge openings in said cylinder.

4. In a force pump, a pump cylinder having a discharge port opening, a hollow liquid conducting piston rod extending through the bottom of the cylinder, a piston located in the cylinder and connected t`o the upper end of the piston rod and having a passage therethrough, a check valve closing the passage at the top of the piston, a housing parallel to and supporting the cylinder, a connecting rod adapted to freely reciprocate within the housing, and a coupling arm connecting the piston and the connecting rods together at their lower ends.

HOWARD LE ROY GAGE.

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