US3406704A - Flow regulating valve for magnetic particles - Google Patents

Flow regulating valve for magnetic particles Download PDF

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Publication number
US3406704A
US3406704A US522318A US52231866A US3406704A US 3406704 A US3406704 A US 3406704A US 522318 A US522318 A US 522318A US 52231866 A US52231866 A US 52231866A US 3406704 A US3406704 A US 3406704A
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US
United States
Prior art keywords
valve
flow
coil
abrasive
particles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US522318A
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English (en)
Inventor
Harvey G Van Fossen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wheelabrator Corp
Original Assignee
Wheelabrator Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wheelabrator Corp filed Critical Wheelabrator Corp
Priority to US522318A priority Critical patent/US3406704A/en
Priority to GB765/67A priority patent/GB1151472A/en
Priority to CH47967A priority patent/CH446103A/de
Priority to DE19671652267 priority patent/DE1652267B1/de
Priority to SE00748/67A priority patent/SE329211B/xx
Priority to AT49367A priority patent/AT262828B/de
Priority to BE692988D priority patent/BE692988A/xx
Priority to FR92133A priority patent/FR1508777A/fr
Application granted granted Critical
Publication of US3406704A publication Critical patent/US3406704A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
    • B24C7/0053—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/12—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with streamlined valve member around which the fluid flows when the valve is opened
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
    • F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
    • G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
    • G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/4456—With liquid valves or liquid trap seals
    • Y10T137/4643—Liquid valves

Definitions

  • the valve includes an outer member and an assembly consisting of a permanent magnet and an electrical coil, this assembly providing a core member with a flow through passage being provided by spaces defined between the core member and the interior wall of the outer member. Means are provided for energizing the coil and for varying the input to the coil to vary the influence of the magnet on the particles and thereby regulate the flow of the material through the valve.
  • This invention relates to an improved valve construction.
  • the invention is particularly directed to a valve construction which can be effectively employed for modulating the flow of materials which are composed of a substantial portion of magnetic particles.
  • This invention is particularly concerned with means for modulating the flow of particles which have magnetic characteristics.
  • the construction of this invention is ideally suited for use in conjunction with constructions which employ abrasives for the cleaning of metal surfaces or the like.
  • Various abrasives, such as shot are magnetic in character, and it is highly desirable to provide suitable flow regulating means for such materials because of their abrasive characteristics.
  • the valves described can readily be employed for other applications, not necessarily involving the handling of abrasive cleaning mate-rials.
  • FIGURE 1 comprises an elevational view, partly in section, of the valve construction of this invention
  • FIGURE 2 is a vertical sectional view taken about the line 2-2 of FIGURE 1;
  • FIGURE 3 is a plan view taken about the line 33 of FIGURE 1;
  • FIGURE 4 is a horizontal sectional view taken about the line 44 of FIGURE 1;
  • FIGURE 5 is a horizontal view taken about the line 55 of FIGURE 1;
  • FIGURE 6 comprises a vertical sectional view of an alternative form of the invention.
  • FIGURE 7 is a horizontal sectional view taken about the line 77 of FIGURE 6.
  • the valve construction of this invention generally comprises a flow through passage defined between spacedapart wall portions of the valve.
  • a permanent magnet is associated with the valve adjacent at least one of the walls whereby magnetic particles which pass through the flow through passage are adapted to be attracted by the magnet.
  • An electrical coil is also associated with the valve. This coil is located in proximity with the magnet whereby an energization of the coil will influence the magnetic field produced by the magnet. Means are provided for varying the input to the coil so that corresponding variations in the action of the magnet can be realized.
  • the system is preferably designed so that the effective magnetic field can vary from a condition which will prevent the passage of the abrasive material to a condition which will provide virtually free flow of the material.
  • valve 10 characterized by the features of this invention.
  • This valve is adapted to be associated with an abrasive cleaning machine whereby abrasive particles can be fed into the inlet end 12 of the valve and out of the outlet end 14.
  • the valves are employed for feeding centrifugal wheels.
  • the valve is mounted in association with the wheel housing, and the centrifugal blades engage abrasive passing through the outlet 14 for throwing of the abrasive onto articles to be cleaned.
  • the valve of this invention is intended to replace valves which have previously been employed in conjunction with such abrasive cleaning machines, and the mounting of the instant valves in association with such machines is essentially the same as in the case of previously used valves.
  • the valve is formed by means of a pair of outer sections 16 and 18.
  • the respective sections include flange members 20 defining openings 22 whereby the respective sections can be mounted in a desired position.
  • Each of the sections also includes flange members 24. These flange members each define openings 26 whereby fasteners 28 can be utilized for securing the respective sections together.
  • a pair of wings 30 which are integrally formed with a conically shaped cap member 32.
  • the ends of these wings 30 are shaped whereby they interfit with the inclined interior surface 34 of section 16.
  • a similar conically shaped cap member 36 is provided with wings 38, and this arrangement is located near the outlet end of the section 18.
  • magnet and coil assembly Located intermediate the cap members 32 and 36 is the magnet and coil assembly of this invention.
  • This assembly includes pole pieces 40 and 42 which can be cemented or otherwise secured to the respective cap members.
  • Permanent magnets in the shape of discs 46 are located in stacked relationship between the pole pieces 40 and 42.
  • An electrical coil preferably in the form of an elongated wire is wound around the magnets and pole pieces to form the cylindrical arrangement 48.
  • An annular passage 50 provides the flow through passage for the construction.
  • the energization is varied by the necessary amount to achieve a reduction in flow rate.
  • the flow of particles can be substantially stopped by de-energizing the electrical coil provided permanent magnets of the necessary strength are employed. It will be appreciated that stopping of the flow may not be necessary for some applications.
  • valve construction described can be utilized in conjunction with materials which comprise a substantial portion of particles adapted to be attracted by magnetic forces.
  • the invention contemplates the handling of mixtures of magnetic and nonmagnetic materials, particularly Where the dominant portion of the materials is magnetic and will influence the flow rate of all the materials.
  • the valve will function even when the major portion of the material is non-magnetic and a minor portion is magnetic, In such case, it will have a slightly slower response to changes in magnetic field. For example, if a mixture of 40 percent magnetic steel shot and 60 percent sand, by volume, was passing through the valve at full flow rate, the coil could be partially de-energized such that the permanent magnets will attract the magnetic particles in the mixture and restrict the opening in the valve, thus reducing the flow of both magnetic and non-magnetic material through the valve.
  • One contemplated application of the invention comprises the use of the described constructions as abrasive control valves for a machine such as described in United States Patent No. 3,188,776.
  • two or more multiple centrifugal wheels operate in tandem, and in some instances, shot is used in one section of the construction and grit in another.
  • shot is used in one section of the construction and grit in another.
  • different amounts of shot and grit are employed for providing optimum cleaning.
  • the valves of this invention the abrasive flow for any given section can be automatically regulated depending upon the grade of steel being cleaned. Variations can also easily be made once an operation has begun.
  • the use of these valves is quite important from the standpoint of initial machine design since the machine can be provided with enough wheels and enough horsepower in each section to meet all possible variations. The given sections can then be readily operated at desired speeds for a given job.
  • wide strip is cleaned by applying abrasive from three or more wheels which are located in side-by-side relationship for covering the entire width of the steel. Since such strips may vary in degree of scale thickness or scale toughness at different locations, such as the edges as contrasted to the middle, it is highly desirable to have reliable valve means for applying abrasives at different rates to different areas of the steel surface.
  • the valve means are also ideally suited for situations wherein the operation of a particular line is cut back without being completely stopped. For example, there may be insulficient steel for cleaning over a given period of time; however, a steady flow may be desired and, therefore, temporary operation at half line speed and at half the rate of abrasive flow is undertaken.
  • the valves of this invention readily permit such an arrangement.
  • the electrical coil is preferably energized from a DC source.
  • modulation of the flow can be efiiciently accomplished since a plot of voltage against abrasive flow becomes practically a straight line function:
  • seven permanent magnets formed of Indox 5 and magnetized to full strength are stacked.
  • the diameter of the magnets was 2.38 inches, the total length of the stack was 2.506inches with an air gap 50 between the magnets and the housing 18 of one inch.
  • An electrical coil formed of No. 23 gauge ML copper wire with a wire coating epoxy capable of withstanding temperatures to 357 F. was associated with the magnets.
  • the leads were 12 inches minimum length and of ZO-gauge Teflon type E insulated wire.
  • the coil power rating was 175 watts plus or minus 10 percent with a coil resistance of 45 ohms.
  • the pole piece extensions 40 and 42 serve a very useful purpose in the construction. These extensions add approximately 1% inches to each end of the magnets, and they permit the use of a smaller diameter coil for purposes of neutralizing the magnetization of the permanent magnets. The use of a larger coil compressed into the length of the permanent magnets would require a substantially greater voltage for achieving the same results, and excessive heat would be developed in the coils which could cause them to burn out.
  • the conically shaped cap members 32 and 36 also serve a very useful purpose in the construction. They streamline the abrasive flow through the valve and most important, they can be made of abrasion-resistant, nonmagnetic and good heat conducting material.
  • the cap members comprise a cast mixture of fine sized silicon carbide and epoxy cement so that they protect the pole piece extensions 40 and 42 from wear, and they dissipate heat away from the electric coils by transferring the heat to the abrasiv flowing over the caps.
  • FIGURES 6 and 7 comprises an alternative form of the invention.
  • This arrangement includes a cylindrical section 70 defining a flow through passage 72.
  • Upper and lower flanges 74 can be utilized for securing the cylinder 70 in the manner previously described.
  • Pole pieces 76 extend into the flow through passage through openings 78 in the walls of the cylinder 70.
  • the pole pieces are interconnected by means of a bar 80, and this bar comprises a permanent magnet whereby the pole pieces will attract abrasive particles in accordance with the previous description.
  • the cylinder 70 is preferably formed of a non-magnetic stainless steel whereby it will have no direct influence on the magnetic characteristics of the system.
  • An electromagnetic coil 82 is wrapped around the permanent magnet 80, and the electrical leads 84 provide for energization of the coil.
  • This alternative arrangement is, thus, adapted to operate in a manner similar to the above described arrangement.
  • the coil 82 will influence the permanent magnet characteristics to the extent that the pole pieces 76 can act as valve means for regulating the flow of abrasive particles through the cylinder 70.
  • Hot steel abrasives are handled, for example, during their manufacture, where it is desired to take hot abrasive after they have passed through a drier and control the flow over airwash separators to remove slag and other debris prior to heat treating.
  • the alternative form of this invention finds use in such systems as well as in other systems involving a variety of different operations.
  • a silicon control DC rectifier varying the DC voltage between and 95 volts is preferably employed with constructions of the type described above. This arrangement or any conventional rectifier is utilized in conjunction with an ordinary 110 volt AC line current. With an arrangement of this type, steel shot will flow when the voltage exceeds about volts and will increase to a maximum at a voltage of about 95 volts with the magnetization being sufiiciently neutralized at this point so that it no longer retards the flow of magnetic particles.
  • valve constructions of this invention are characterized by various advantages when compared with conventional valves employed for similar purposes.
  • the constructions do not utilize moving parts and, therefore, bits of abrasive will not cause binding or malfunctions in the valves.
  • the arrangements are compact whereby they can be readily incorporated in various machines.
  • the size and elimination of moving parts makes the arrangements extremely inexpensive and easy to install.
  • Th valve constructions do not develop magnetic force outside of the valve housing and, therefore, abrasive dust is not attracted to the valve area. It is also to be noted that the abrasives flowing through the valve do not retain any significant residual magnetism. If any small amount of magnetism is picked up, it is lost during impact after the abrasive is thrown by the centrifugal wheel against the work.
  • a valve for use in the handling of materials which are in particle form and which comprise a substantial portion of magnetic particles said valve comprising an outer member defining a flow-through passage, a permanent magnet associated with said valve adjacent at least one wall thereof, said magnet being adapted to attract said particles and to thereby impede movement of the particles through the passage, an electrical coil, said magnet and said coil comprising an assembly forming a core member disposed within the confines of said outer member with said passage comprising a space defined between said core member and said outer member, means for energizing said coil, and means for varying the input to said coil for thereby varying the influence of said magnet on said particles.
  • a valve in accordance with claim 1 wherein the assembly comprising said core member includes said magnet in an internal portion with said coil surrounding said magnet.
  • a valve in accordance with claim 2 including cap members covering the ends of said core member and wings associated with said cap members extending outwardly toward the interior walls of said outer member, said wings interconnecting said core member and said walls for supporting the core member within the outer member.
  • a valve in accordance with claim 3 including a bore defined in at least one of said wings, an opening in said outer member communicating said bore with the exterior of said valve, and leads from said coil extending through said bore and out of said opening to provid an electrical connection for said coil.
  • a valve in accordance with claim 2 including pole piece extensions located at the opposite ends of said magnet, and wherein said coil extends beyond said magnet and over said extensions.
  • a valve in accordance with claim 2 wherein said magnet is formed of a plurality of separate discs arranged in stacked relationship, and wherein said coil comprises a continuous length of wire wound in a plurality of turns around said stacked discs.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Magnetically Actuated Valves (AREA)
US522318A 1966-01-21 1966-01-21 Flow regulating valve for magnetic particles Expired - Lifetime US3406704A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US522318A US3406704A (en) 1966-01-21 1966-01-21 Flow regulating valve for magnetic particles
GB765/67A GB1151472A (en) 1966-01-21 1967-01-05 Improvements in or relating to Valves
CH47967A CH446103A (de) 1966-01-21 1967-01-13 Vorrichtung zur Reglung des Durchflusses von Strahlmittel durch die Zuleitung einer Schleuderstrahlmaschine
DE19671652267 DE1652267B1 (de) 1966-01-21 1967-01-17 Vorrichtung zum Steuern des Durchflusses von Strahlmittel durch die Zuleitung einer Schleuderstrahlmaschine
SE00748/67A SE329211B (es) 1966-01-21 1967-01-18
AT49367A AT262828B (de) 1966-01-21 1967-01-18 Vorrichtung zur Regelung des Durchflusses von körnigem, magnetisierbarem Strahlmittel durch die Zuleitung einer Schleuderstrahlmaschine
BE692988D BE692988A (es) 1966-01-21 1967-01-20
FR92133A FR1508777A (fr) 1966-01-21 1967-01-23 Vanne de débit pour particules magnétiques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US522318A US3406704A (en) 1966-01-21 1966-01-21 Flow regulating valve for magnetic particles

Publications (1)

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US3406704A true US3406704A (en) 1968-10-22

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US522318A Expired - Lifetime US3406704A (en) 1966-01-21 1966-01-21 Flow regulating valve for magnetic particles

Country Status (8)

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US (1) US3406704A (es)
AT (1) AT262828B (es)
BE (1) BE692988A (es)
CH (1) CH446103A (es)
DE (1) DE1652267B1 (es)
FR (1) FR1508777A (es)
GB (1) GB1151472A (es)
SE (1) SE329211B (es)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3581442A (en) * 1968-06-14 1971-06-01 Wheelabrator Corp Controls for electromagnetic valves
US3970112A (en) * 1975-12-08 1976-07-20 General Motors Corporation Control valve
US5362027A (en) * 1993-11-12 1994-11-08 Electronics, Incorporated Flow regulating valve for magnetic particles
US6044866A (en) * 1996-04-23 2000-04-04 Burkert Werke Gmbh & Co. Gas flow valve
FR2860244A1 (fr) * 2003-09-27 2005-04-01 Daimler Chrysler Ag Procede permettant le pretraitement d'une surface.
US20100199519A1 (en) * 2007-09-20 2010-08-12 Inventus Engineering Gmbh Valve for Magnetorheologic Fluids
US20110148071A1 (en) * 2008-08-22 2011-06-23 Inventus Engineering Gmbh Movement damping apparatus
CN104084892A (zh) * 2014-05-13 2014-10-08 上海船舶工艺研究所 一种用于磁性金属磨料的节流控制装置及其使用方法
WO2017180058A1 (en) * 2016-04-11 2017-10-19 Abrasive Engineering Pte Ltd Control valve for shot peening
CN108503362A (zh) * 2018-05-25 2018-09-07 张剑 一种纳米石墨基研磨材料的制备方法
CN111469053A (zh) * 2019-01-24 2020-07-31 中国石油天然气集团有限公司 砂阀以及喷砂除锈系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4917419A (en) * 1988-08-22 1990-04-17 Mora Jr Saturnino F Electromechanical door lock system
CN107435780A (zh) * 2017-04-21 2017-12-05 佛山林稷机电科技有限公司 一种石油输油管堵截装置

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Publication number Priority date Publication date Assignee Title
US1747044A (en) * 1926-09-28 1930-02-11 Gen Electric Circuit-controlling apparatus
US2154843A (en) * 1936-03-21 1939-04-18 American Foundry Equip Co Abrading apparatus
US2160697A (en) * 1936-02-24 1939-05-30 Pangborn Corp Abrading apparatus
US2263321A (en) * 1940-06-01 1941-11-18 American Foundry Equip Co Centrifugal blasting machine
US2505049A (en) * 1945-03-31 1950-04-25 Linde Air Prod Co Electric powder control
US2651258A (en) * 1948-09-10 1953-09-08 Pierce Firth Field-sensitive hydraulic apparatus
US2670749A (en) * 1949-07-21 1954-03-02 Hanovia Chemical & Mfg Co Magnetic valve
US2820471A (en) * 1953-07-31 1958-01-21 Serge L Crowell Valve mechanisms for magnetic fluid conduits and devices employing the same
US3010471A (en) * 1959-12-21 1961-11-28 Ibm Valve for magnetic fluids
US3188776A (en) * 1962-08-20 1965-06-15 Wheelabrator Corp Surface treatment of steel

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2365948A (en) * 1942-04-27 1944-12-26 Pangborn Corp Abrasive supply system
DE1012844B (de) * 1956-04-17 1957-07-25 Badische Maschinenfabrik A G Vorrichtung zur Regelung des Durchflusses von koernigem, magnetisierbarem Strahlmittel durch eine Leitung bei Gussputzmaschinen und aehnlichen Geraeten

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1747044A (en) * 1926-09-28 1930-02-11 Gen Electric Circuit-controlling apparatus
US2160697A (en) * 1936-02-24 1939-05-30 Pangborn Corp Abrading apparatus
US2154843A (en) * 1936-03-21 1939-04-18 American Foundry Equip Co Abrading apparatus
US2263321A (en) * 1940-06-01 1941-11-18 American Foundry Equip Co Centrifugal blasting machine
US2505049A (en) * 1945-03-31 1950-04-25 Linde Air Prod Co Electric powder control
US2651258A (en) * 1948-09-10 1953-09-08 Pierce Firth Field-sensitive hydraulic apparatus
US2670749A (en) * 1949-07-21 1954-03-02 Hanovia Chemical & Mfg Co Magnetic valve
US2820471A (en) * 1953-07-31 1958-01-21 Serge L Crowell Valve mechanisms for magnetic fluid conduits and devices employing the same
US3010471A (en) * 1959-12-21 1961-11-28 Ibm Valve for magnetic fluids
US3188776A (en) * 1962-08-20 1965-06-15 Wheelabrator Corp Surface treatment of steel

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3581442A (en) * 1968-06-14 1971-06-01 Wheelabrator Corp Controls for electromagnetic valves
US3970112A (en) * 1975-12-08 1976-07-20 General Motors Corporation Control valve
US5362027A (en) * 1993-11-12 1994-11-08 Electronics, Incorporated Flow regulating valve for magnetic particles
US6044866A (en) * 1996-04-23 2000-04-04 Burkert Werke Gmbh & Co. Gas flow valve
FR2860244A1 (fr) * 2003-09-27 2005-04-01 Daimler Chrysler Ag Procede permettant le pretraitement d'une surface.
US8302327B2 (en) * 2007-09-20 2012-11-06 Inventus Engineering Gmbh Valve for magnetorheologic fluids
US20100199519A1 (en) * 2007-09-20 2010-08-12 Inventus Engineering Gmbh Valve for Magnetorheologic Fluids
US8418819B2 (en) * 2008-08-22 2013-04-16 Inventus Engineering Gmbh Movement damping apparatus
US20110148071A1 (en) * 2008-08-22 2011-06-23 Inventus Engineering Gmbh Movement damping apparatus
US9217487B2 (en) 2008-08-22 2015-12-22 Inventus Engineering Gmbh Movement damping apparatus and valve
CN104084892A (zh) * 2014-05-13 2014-10-08 上海船舶工艺研究所 一种用于磁性金属磨料的节流控制装置及其使用方法
CN104084892B (zh) * 2014-05-13 2016-12-07 上海船舶工艺研究所 一种用于磁性金属磨料的节流控制装置及其使用方法
WO2017180058A1 (en) * 2016-04-11 2017-10-19 Abrasive Engineering Pte Ltd Control valve for shot peening
US10882159B2 (en) * 2016-04-11 2021-01-05 Abrasive Engineering Pte Ltd Control valve for shot peening
CN108503362A (zh) * 2018-05-25 2018-09-07 张剑 一种纳米石墨基研磨材料的制备方法
CN108503362B (zh) * 2018-05-25 2020-10-13 黑龙江省广盛达新材料科技有限公司 一种纳米石墨基研磨材料的制备方法
CN111469053A (zh) * 2019-01-24 2020-07-31 中国石油天然气集团有限公司 砂阀以及喷砂除锈系统
CN111469053B (zh) * 2019-01-24 2021-05-28 中国石油天然气集团有限公司 砂阀以及喷砂除锈系统

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GB1151472A (en) 1969-05-07
FR1508777A (fr) 1968-01-05
AT262828B (de) 1968-06-25
CH446103A (de) 1967-10-31
DE1652267B1 (de) 1970-01-29
BE692988A (es) 1967-07-03
SE329211B (es) 1970-10-05

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