US2578902A

US2578902A - Magnetically operated pump

Info

Publication number: US2578902A
Application number: US774025A
Authority: US
Inventors: Smith Dale
Original assignee: Individual
Current assignee: Individual
Priority date: 1947-09-15
Filing date: 1947-09-15
Publication date: 1951-12-18
Anticipated expiration: 1968-12-18

Description

Patented Dec. 18, 1951 MAGNETICAPLY @eterea Dele. Smith Engler-reed Q applicative., 91?, negeer., 15, 1947, Sen

@eine (C1- 19.31-15.35

'Iliis invention relatesto a magnetically oper-- atepump. A. Y .l "One object of the invention is to provide a sirnpl compact construction 'Afurther object of the invention is to provide a double action 'pump inwhich' the piston is' posi-4 tivelv 'moved in." both 'directions by separate t. 1 L .v .C f f' A' further object of the invention is to' prpvide such a Dump in which tlfie jpuxnping'eleineijits and the magnets, @reassembled in unitary,

further object of the invention is to provide such a"pump irfwhicli 'the magnets are carried "e'frtherfbiect 0f the. invention is to prende su'h'a pump in whichthe magnets are vatitv niatcally and rapidly energized and deenerg 4d. A further `object of the invention'is 'tofprovrde suena pump with a' remote timing mechanisr'n forV automatically energizing and. y dlnfgi the magnets;

'furtherobject of the invention is to provid such a piir'np which may be voperat'edrieitl'ler "a vertical p o'stion or a""horiz onta1 pisition',k wliich Amay be used for pumping flui4 ofrnanyv r l. f t. ,f v. M il @j Other objects of the invention will appear as the'l Apu'nripis" described in'id'etail the vaccompanying ldrawings Fig. l is a len-x gitidinalfsection 'takencentrally 'through a punir) sgetiom'partly 'broken away; taken onitli'efme 2+! "of Fig. 1,:on'1`itting` the pistonand'piston' rod`; Fig. 3' is a transverse section taken on'the' lines-w3 of Fig. 1f; and Fig. 4isauiagr'am6'f tile ragnet circuits and the controlling' device there-f fre... i .v n In these drawings I have illustrated one embodiment 'of my invention and haveshwn 'the saneas comprising a supporting structure Izak/T-v irig`"th`erein a 'cylinder in which Operates 'a piston provided Vlwith a`Y piston rod. The lstruct'ireis als provided with inlet and outlet passagesborn; rnicating' with the cylinder" on b'otl'fstides *of tlie'pis'ton. Arranged in line withtle cylinder', and" preferably supported on thelsupporti structure, are two magnets each liavingan niilallle' movb lengthYVSe 0f @hef @Winder a cnnected with thepiston rod. Thusthe Salternage engrgizanon of the two magnets' wur im- D 1160i" l double action magnetically' operated' purnrpfci al nog the sweating Strunk@ @muses a one, 111er@Y bod navingtlierein" lon 'tudinal borefwliicn cp ntes'thepump cylm "r: The'bodysjals p. i lengthwise 'of thef cylinclc-ir4 and here shown as closed at one end and is' provided at its other @rundet adjacent tee respeetive'eeds. @i the; latter,V lqyj "ports I lfin whicht4 are arranged," inlet @beting fplug'eei.- "Tliere. is; also" 'filtered in the: bo'dyan outletipassage I4 which is here sliown eiqsedat one Vand'and; as having lat'its"6111erenig an opening Ifif-"toc receive' tlev en dfof a discharge pipe4 `I iv' leading t0 a" rtrage receptacle "H aridhaving therein an outwardly'openingcheck "valve be connecten a 'pistonro'd'o'r rods." "In the presentinstance a "single pistonv rod 23 'extends "fthroi'gh the 'pieton andiisngidly secured thereto, th'eend portions' of 'the' rod 'e'iit'nding' from theV piston to points adjacent the"res'pctive lends" of 'the cylinvd'er'f. f' Arranged adjacent to and preferably supported bytlie' supporting"stictie'or" body v 5' aref tw' electromagnets 24 and 25V." In the'iprevsent 'ar rangement the'rnagnets are in the: nature vof-"solen'ids' Qa''i are attl'ie'respective ends of the cylinder andere supportddirectly on'tl body 5'. Each v magnet comprises a tubular ele-' Inent A26 iavinglat'tsinnei' end aradial riange Z''by Vwliviclrit niaylbesecuredlto thadjac'ent end 'of tlebody,"and 'preferably having its'ou'tr end closed. V"ll/l)untle'd 1jlonfthis tubular' 'eleriient Vris a magnetizing winding'28,` and the winding lid tubular" llenient are*enclosed*by arf'"cuter sliell 0i? fsinlzhvilg. t its inner en@ radial. flange i'q il'by'whichit may seciired'to the bdy'zj. fithle meer and lte'r elements aveeredtc? the bedr .by the lsef screws: auswahl@ sagas @2. and 33. bene," were ISBH" between 4the flange "'21 "Of' thellnll'e y 26 .and the .end of the bedr ,and eetwe n h ffange'l and the `11a/rige 130:91? tne'foterjsn 3 thus tightly sealing the casing. Each solenoid includes an armature or core 34 supported in the tubular element 26 for longitudinal movement therein, the two armatures being rigidly connected with respective ends of the piston rod 23. The outer shell or casing of one of the solenoids, in the present instance the solenoid 24, is provided with an opening in which is mounted a conduit for conductors 36 which extend through-the conduitinto the casing 29 .and a part of which are connected with the magnetizing winding of the solenoid 24 and another part 31 of which extends through the casing 28 and through a longitudinal opening 38'in the body 5 to the winding of the solenoid 25. Thus the alternate energization of the two solenoids will cause the piston to reciprocate in the cylinder.

Any suitableA means may be provided for automatically energizing anddeenergizing the two solenoids. As shown inthe diagram of Fig. 4 the main circuit, comprising conductors V39 and 40, is adapted to be connected with any suitable power line. One of these conductors, in the present instance M, is connected by branch circuits 4l and 42 with the

solenoids

25 and 24 respectively and these solenoids are connected by conductors 43 and 44 with the respective terminals 45 and 46 of a two way switch 41. The movable member 48 of the switch is adapted for movement into contact with either of the terminals and 45 and is connected by a conductor 49 with the conductor 39 in the main circuit. The movable member 48 of the switch may be moved from one terminal to the other in any suitable manner, as by a iinger 58 connected with the movable switch memberf The nger'B is preferably actuated by a continuously rotating timing device 5I which is rotated by a suitable electrically operated device,V here shown diagrammatically as an electric clock 52 which is connected with the

conductors

39 and 40 of the main circuit. The timing device isl provided with means for engaging the finger 5G of the switch and moving the removable member 48thereof rst in one direction and then in the'other direction. The main circuit is, of course, provided with a master switch 65 by whichvthe operation of the pump mechanism may bev initiated and interrupted. rlhus it will beapparent that when the master switch is closed thetiming device will operate the two Way switch to alternately close the circuits through the Vmagnets and thereby actuateV the piston to draw fluid into and to discharge the same from the cylinder. This operation will continue until the master switch is opened or the r circuit otherwise broken. y

It is also desirablethat the circuit should be provided with an automatic pressure controlled cutout to interrupt the operation Aof the pump when the pressure in fthe tank I1, or other part of the line, reaches a predetermined limit. As

here shown there is interposed in the conductor 39 of the main circuit a switch 55 which is normally urged into engagement with a xed contact member 56 by a spring 51. -A pressure controlled element, such as a bellows 58, is so connected with the tank as by a conduit 59 that it will expand as the pressure'rises. Connected with the bellows is a nger 59lwhich is arranged to en.- gage the switch member and move the same out of engagement with the contact member 56 when the bellows has expanded to a" predetermined extent.

It will be apparent from the foregoing description that I have provided a double action, mag- 4 netically operated pump which is of a simple compact arrangement, is positively operated in both directions, is automatically controlled, can be operated either in a horizontal position or in a vertical position for the pumping of fluids of various kinds, and is well adapted for use both in deep wells and in shallow wells.

While I have shown and described one embodiment of my invention I wish it to be understood that I do not Adesire to be limited to the details thereof as various modications may occur to a person skilled in the art.

Having now fully described my invention what I claim as new and desire to secure by Letters Patent is: j

'1. A magnetically operated pump comprising a body having therein a cylindrical bore constituting a pump cylinder, said body also having therein inlet and discharge passages extending lengthwise of said cylinder for the major portion of the length of the latter, and valve controlled ports connecting each passage with said cylinder adjacent the respective ends of the latter, a piston in ends of said body and' each including a longitudinally movable armature rigidly connected with the adjacent side of said piston in spaced rela` tion thereto, and means for energizing said sole-l .,f noids automatically to impart reciprocatory movement to said piston.

2. A magnetically operated pump comprising a body having therein a cylindrical borel constituting a pump cylinder, said body also4 having 1. therein inlet and discharge passages extending lengthwise of said cylinder for the major portion of the length of the latter, and valve controlled ports connecting eachA passage with said cylinder adjacent the respective ends of the latter, a piston in said cylinder, solenoids secured'to the' respective ends of said body and each including a longitudinally movable armature rigidly connected with the adjacent side of said piston in spaced relation thereto, said body having therein a third passage which extends for the full length thereof l' and through which conductors may extend from of the length of the latter, and valve controlledy ports connecting each passage with said cylinder adjacent the respective ends of the latter, a piston in said cylinder, solenoids secured to the respective ends of said body and each including a longitudinally movable armature rigidly connected with the adjacent side. of said piston in spaced relation thereto, said body having therein a third passage whichvextends for the full length thereof, casings enclosing the windings of the respective solenoids, a plurality of conductors extending into one of said casings, a part of said conductors being connected with the winding in said casing and another part of said conductors extendingv from said casing through said third passage and being connected with the windings in the other of said casings, and means for alternately energizing said solenoids.

4. A magnetically operated pump comprising a body having therein a cylinder, a piston in said cylinder, said body also having therein longitudinal inlet and discharge passages extending for the major portion of the length of said cylinder, valve controlled ports connecting said passages with said cylinder on each side of said piston, solenoids supported by the respective ends of said structure, each solenoid including a tubular element separate from and rigidly secured to said body, a magnetizing winding on said tubular element and an armature supported in said tubular element for movement lengthwise thereof and connected with the adjacent side of said piston, and means for alternately energizing said windings to impart reciprocatory movement to said piston.

5. A magnetically operated pump comprising a part having therein a cylinder, a piston in said cylinder, inlet and discharge conduits communicating with said cylinder in each side of said piston, valves to control the flow of uid to and from said cylinder, a tubular element supported in line with said cylinder at each end of said body, said tubular element being separate from said body, having rigid sealed connection with the adjacent end thereof and having its outer end closed, a magnetizing winding on eachy tubular element, a second tubular element extending about and enclosing said winding, said second tubular element having its outer end closed and having its inner end rigidly secured to the adjacent end of said body, armatures supported in said inner tubular elements for movement lengthwise thereof and rigidly connected with said piston, one of said second tubular elements having an opening through which electrical conductors may enter the saine and said body having an opening extending lengthwise thereof through which a part of said conductors may extend from said one of said second tubular elements to the winding in theother of said second tubular elements, and means for alternately energizing said windings to impart reciprocatory movement to said pistons.

DALE SMITH.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,804,375 Cobe iViay 5, 1931 1,804,376 Cobe May 5, 1931 2,193,141 Price Mar. 12, 1940 2,283,886 Henkell May 19, 1942 2,430,151 Whitted Nov. 4, 1947 FOREIGN PATENTS Number Country Date 433,838 France Jan. 17, 1912 612,719 France Oct. 29, 1926