US2504428A - Electrically operated shutoff valve - Google Patents

Electrically operated shutoff valve Download PDF

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Publication number
US2504428A
US2504428A US34460A US3446048A US2504428A US 2504428 A US2504428 A US 2504428A US 34460 A US34460 A US 34460A US 3446048 A US3446048 A US 3446048A US 2504428 A US2504428 A US 2504428A
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coil
valve
core
magnetic
stem
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US34460A
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Kimball Linwood
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RUGGLES KLINGEMANN Manufacturing CO
RUGGLES-KLINGEMANN Manufacturing Co
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RUGGLES KLINGEMANN Manufacturing CO
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644One-way valve
    • F16K31/0655Lift valves

Description

April 18, 1950 L. KBMBALL CLLY OPWTED S-TJTOFF VALVE Filed June 22, 3.948

i.: f1 f.. Juhu? 2,. IH MIMI t I d .Y l m Y lllll r.

Patented Apr. 18, 1950 ELECTRICALLY OPERATED SHUTOFF VALVE Linwood Kimball, Danvers, Mass., signor te Buggies-Klingemann Mfg. Co., Salem, Mass.

Application June 22, 1948, Serial No. 34,460

4 Claims. (Cl. 137-139) My invention relates to electrically operated shut-oil valves for oil burners and for general application where such valves `are applicable. More specifically it relates to shut-ofi' valves which will close on failure of electric current and remain closed after current has been restored until manually reset.

The object of the invention is to provide an electrically operated shut-off valve,`of simple construction, which can be produced at a low cost of manufacture, which is positive in its operation.

To accomplish these objects I have devised a novel arrangement for manually re-setting the valve which consists of displacing the magnetic coil, in relation to the position of a movable magnetic core, disposed in a duid-tight casing and operating as the valve opening and closing means.

To carry out the objects of my invention, the various elements are associated as illustrated in the accompanying drawings, in which:

Fig. 1 illustrates my invention, wherein a twopiece magnetic core is employed, the object of which will be explained later.

Fig. 2 illustrates a similar embodiment to that of Fig. 1 with the exception that the upper part of the magnetic core is stationary, the lower end extending into the magnetic iield of the electric coil.

Referring to Fig. l. Valve casing i has an inner valve 2, shown as closing orifice 3 which connects inlet 4 with outlet 5. A fluidtight nonmagnetic tube 6, is pressed into valve cap 'I and pressure sealed at its lower end. A magnetizable pole cap 8 closes the top of tube 6 and has a threaded portion with an adjustable nut 9, the purpose of which will be explained later.

Within the non-magnetic tube 6 is a magneticable floating core III and a magnetizable valve operating core IIIA, both of which are mounted on valve stem II. Valve stem Il has a collar I2; which provides a. iixed limit of movement for magnetic core, IOA, between collar I2 and valve head 2. A solenoid coil I3 is mounted on the outside of tube 6 and is enclosed in a magnetic casing I4. This coil I3 is held in place by` a conical shaped spring I5 pressing on magnetic plate I8.

In the operation of my invention the magnetic coil I3 is normally elevated to such a position, that when the valve operating magnetic core IIIA is de-magnetized, it drops in closing valve orifice 3, to a position which is out of the path of the magnetic pull and therefore will not be aiiected by the resumption of electric current. However, as the current again comes back on the coil I3, the floating core I0. which is never entirely out of the magnetic iield, will be attracted to a 2 iloating position within the magnetic coil, thus cutting down the current through coil I3 and avoiding an excessive heat rise.

The manual resetting operation, after current has been restored, is to depress the coil against the retaining spring I5, thus placing the coil in a position to magnetize valve operating core Il and cause it to rise with the coil Il; as the same is returned to its normal position. The purpose of adjustable nut 9 is to so position the coil I3 as to place the same in the most advantageous position in relation to voltage and the pressure to be overcome in unseating inner valve 2.

The type of valve shown in Fig. 1 is best suited for A. C. current, as the magnetic cores never make metal to metal contact, but float when energized in the magnetic field and therefore avoid A. C. hum.

Referring now to Fig. 2 the illustration shows the operating coil depressed, as in its manual operation in picking up the magnetic core for opening the valve. The arrangement is quite similar to Fig. l, with the exception that pole cap IA extends into the coil winding when the same is ln its normal position and therefore does not require the floating magnetic core I0, as shown in Fig. 1. The clearance between the upper end of core IIIA of Fig. 1, Fig. 2, and collar I2 on stem II, is to allow core IOA to move upward a short distance before contacting collar I2 and thereby gain the necessary momentum to unseat valve 2. This hammer blow action also aids in seating of valve 2, both .core I 0 and IIA being slidably mounted on valve stem I I.

Due to the construction of spring I5, the coll I3 can be compressed to a position where maximum pull is obtained; which permits easier opening with a lower rated coil, than would normally be required.

While I have illustrated and described my invention in relation to a shut-oil.' valve of the type shown, I desire to have it understood that the invention is equally applicable to other types of valves or devices; for example electric switches and the like. .l desire therefore, that only such limitations shall be imposed, as are indicated in the appended claims. .l

I claim as my invention.:

l. In combination with a device to be operated. operating means mounted on said device, comprising a vertical tube of non-magnetic material. an operating stem within said tube, a collar on said stem, a core of magnetica-ble material freely reciprocable between said collar and the device to n be operated, a. second core of magnetizable material mounted on said stem above said collar and 3 yin spaced relation to the first named core, a solenoid coil slidable on said tube, spring means supported on said tube for biasing said coil in spaced relation to said cores, means for connecting said coil to a source of electric current whereby the second named core is operated to within the magnetic field of the coil, means manually operated for depressing the coil to a position surrounding the ilrst named core to energize the same, the arrangement being such that when the coil is returned to its former spring biased position the first named core is operated against said collar and ln contact with the second named core thereby eiecting operation of the device to be operated.

2. In combination, a member to be operated, a

support for said member, a stem for operating said member, a collar on said stem,a core of magnetizable material mounted on said stem and freely reciprocated between said collar and said member, a second core of magnetizable material freely mounted on said stem above said collar and vin spaced relation to the iirst named core, a tube of non-magnetic material mounted on the supporting member within which said coi'es operate, a solenoid coil slidable on said tube, spring means adapted to bias said coil in spaced relation to the said magnetic cores, means for connecting the solenoid coil to a source of electric current to energize the same, the arrangement being such that when the coil is energized the second named core is attracted to a position within the magnetic field of the coil, and when the coil is depressed to a position surrounding the rst named core the same is energized and when the coil is returned to its former biased position the core is attracted against said collar and in contact with the second named core thereby operating said member.

3. In an electrically operated valve comprising in combination, a valve casing having an inlet and an outlet, a valve orifice intermediate the inlet and outlet, a valve seat, an inner valve adapt ed to engage said seat, a stem for operating said inner valve, a collar on said stem, a core of magnetizable material mounted on said stem and freely reciprocable between said collar and said inner valve, a second core magnetizable material freely mounted on said stem above said collar and in spaced relation to the first named core, a tube of non-magnetic material vertically mounted on said valve casing and closed at its upper end within which said cores operate, a solenoid 'coil slidable on said tube, spring means adapted to bias said coil in spaced relation to the said magnetic cores, means for connecting the solenoid coil to a source of electric current to energize the same, the arrangement being such that when the coil is energized the second named core is attracted to a position within the magnetic field of the coil. and when the coil is depressed to a position surrounding the first named core the same is ener- Y gized and when the coil is returned toits former spring biased position the said core is operated against said collar and in contact with this second named core thereby unseating said inner valve.

4. In an electrically operated valve comprising in combination, a valve casing having an inlet and an outlet, a valve orice intermediate the inlet and outlet having a valve seat, an inner valve adapted to engage said seat, an operating stem for said inner valve, a collar on said stem, a core of magnetizable material mounted on said stem and freely reclprocable between said collar and said inner valve, a second core oi magnetizable material freely mounted at the opposite end of said stem and supported on saidcollar in spaced relation to the iirst named core, a tube oi nonmagnetic material mounted vertically on said valve casing in axial alignment with the inner valve and its operating stem, a magnetic pole piece closing the upper end of said tube, a solenoid coil slidable on said tube, spring means adapted to bias said coil in spaced relation to thev said cores, an adjustable stop on said pole piece against which coil is biased, means for connecting the coil to a source of electric current to energize the same whereby the second named core is attracted to a position within the magnetic field of the coil, and means manually operated for depressing the coil to a position surrounding the first named core to energize the same, the arrangement being such that when the coil is returned to its former spring biased position the first named core is then operated against said collar and in contact with the second named core thereby effecting operation of the inner valve.

LINWOOD KIMBALL.

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

UNITED STATES PATENTS Number Name Date 905,136 Barnum Dec. l, 1908 2,187,834 Mantz Jan. 23, 1940 2,223,986 Eaton Dec. 3, 1940 2,291,599 Ray Aug. 4. 1942 2,297,626 Lennholm et al Sept. 29, 1942 FOREIGN PATENTS Number Country Date 103,518 Australia Mar. 3l, 1938 452,315 Great Britain Aug. 20, 1936

US34460A 1948-06-22 1948-06-22 Electrically operated shutoff valve Expired - Lifetime US2504428A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754571A (en) * 1950-12-01 1956-07-17 Alco Valve Co Method of making a two-headed valve stem
US3937248A (en) * 1968-02-06 1976-02-10 Process Systems, Inc. Fluid flow control system employing a plurality of digital valve elements
US4148340A (en) * 1970-08-03 1979-04-10 Process Systems, Inc. Digital fluid flow control system
US4207919A (en) * 1975-09-19 1980-06-17 Powell Industries, Inc. Digital fluid flow control system
US4283040A (en) * 1977-05-13 1981-08-11 Eaton Corporation Pressure operated pilot control shut-off valve
US4869562A (en) * 1987-07-14 1989-09-26 Robert Bosch Gmbh Magnetic valve with connection device for brake systems
US5299776A (en) * 1993-03-26 1994-04-05 Siemens Automotive L.P. Impact dampened armature and needle valve assembly
US20090301081A1 (en) * 2005-10-29 2009-12-10 Pierburg Gmbh Ambient-air pulsed valve for internal combustion engines equipped with a turbocharger

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US905136A (en) * 1905-04-15 1908-12-01 Cutler Hammer Mfg Co Alternating-current magnet.
GB452315A (en) * 1929-12-14 1936-08-20 Junkers & Co Improvements in and relating to safety devices for gas-heated appliances
US2187834A (en) * 1937-01-08 1940-01-23 Milwaukee Gas Specialty Co Magnetic valve
US2223986A (en) * 1939-08-28 1940-12-03 Gen Electric Electromagnetic valve
US2291599A (en) * 1939-12-16 1942-08-04 William A Ray Solenoid
US2297626A (en) * 1940-02-10 1942-09-29 Square D Co Valve operating electromagnet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US905136A (en) * 1905-04-15 1908-12-01 Cutler Hammer Mfg Co Alternating-current magnet.
GB452315A (en) * 1929-12-14 1936-08-20 Junkers & Co Improvements in and relating to safety devices for gas-heated appliances
US2187834A (en) * 1937-01-08 1940-01-23 Milwaukee Gas Specialty Co Magnetic valve
US2223986A (en) * 1939-08-28 1940-12-03 Gen Electric Electromagnetic valve
US2291599A (en) * 1939-12-16 1942-08-04 William A Ray Solenoid
US2297626A (en) * 1940-02-10 1942-09-29 Square D Co Valve operating electromagnet

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754571A (en) * 1950-12-01 1956-07-17 Alco Valve Co Method of making a two-headed valve stem
US3937248A (en) * 1968-02-06 1976-02-10 Process Systems, Inc. Fluid flow control system employing a plurality of digital valve elements
US4148340A (en) * 1970-08-03 1979-04-10 Process Systems, Inc. Digital fluid flow control system
US4207919A (en) * 1975-09-19 1980-06-17 Powell Industries, Inc. Digital fluid flow control system
US4283040A (en) * 1977-05-13 1981-08-11 Eaton Corporation Pressure operated pilot control shut-off valve
US4869562A (en) * 1987-07-14 1989-09-26 Robert Bosch Gmbh Magnetic valve with connection device for brake systems
US5299776A (en) * 1993-03-26 1994-04-05 Siemens Automotive L.P. Impact dampened armature and needle valve assembly
US20090301081A1 (en) * 2005-10-29 2009-12-10 Pierburg Gmbh Ambient-air pulsed valve for internal combustion engines equipped with a turbocharger
US8387383B2 (en) * 2005-10-29 2013-03-05 Pierburg Gmbh Ambient-air pulsed valve for internal combustion engines equipped with a turbocharger

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