US3034761A - Anti-caking dispenser valve - Google Patents

Anti-caking dispenser valve Download PDF

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Publication number
US3034761A
US3034761A US706526A US70652657A US3034761A US 3034761 A US3034761 A US 3034761A US 706526 A US706526 A US 706526A US 70652657 A US70652657 A US 70652657A US 3034761 A US3034761 A US 3034761A
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outlet
valve
dispenser
caking
chamber
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US706526A
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Jerry C Janquart
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Dole Valve Co
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Dole Valve Co
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    • 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
    • F16K25/00—Details relating to contact between valve members and seats
    • F16K25/02—Arrangements using fluid issuing from valve members or seats
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/022—Devices for adding soap or other washing agents in a liquid state

Definitions

  • Dispensers of various types have heretofore been used to add detergents bleach, fabric conditions, and the like to the wash water of an automatic washing machine under the cyclic control of the machine.
  • a still further object of the invention is to provide a novel and improved form of liquid dispenser in which the means operable to open and close the outlet to the dispenser is also arranged to break loose any encrustation of solidified fluid which may be formed at the outlet to the dispenser.
  • FIGURE 1 is a fragmentary vertical sectional view through applioants novel device showing some parts in section and others in side elevations;
  • FIGURE 2 is a vertical sectional view through a portion of the structure shown in FIGURE 1 and showing the valve in an open position.
  • a container for containing fluid to be dispensed mounted'on an outlet boss 11 of a valve block 12 by means of a sealing ring 13.
  • a hollow chamber 14 in the valve block 12 and a second hollow chamber 15 in a solenoid block 16 are aligned with one another to form an outlet chamber generally designated at 17.
  • a well known form of electrically energizable solenoid 18 is mounted on the solenoid block 16 and is rigidly secured thereto.
  • the solenoid includes, of course, a longitudinally reciprocally movable armature 19 which is arranged to be moved upwardly within the armature cylinder 20 upon electrical energization of the solenoid coil 21 and which is arranged to be moved longitudinally extensibly from the armature chamber 20 by a return spring 22.
  • a but-tom 23 which may be formed separately or integrally with the armature 19 is arranged to be secured to the upper end portion of a flexible valve member 25.
  • the flexible outlet valve 25 includes a shank 26 the lower end portion of which is arranged to snugly fit the inner circumference of an outlet port 27 from the outlet chamber 17 which is formed in a slightly bowed out portion 28 of the valve 12.
  • An annular flexible diaphragm 30 formed integrally with the shank 26 extends laterally therefrom and has a beaded portion 31 at its outer periphery which is arranged to be received within an annular channel 32 formed in the upper surface of the valve block 12.
  • a second laterally extending flange 33 formed integral-ly with the shank 26 and having a depending ring 34 is arranged to seat against the lower surface of the outlet chamber 17 when the armature 19 is in the position shown in FIGURE 1.
  • the depending ring 34 is arranged to provide a fluid tight seal at the outlet from the valve body when the solenoid armature 19 is in the position shown in FIGURE 1 and that any encrustation of solidified fluid will be broken away from the outlet when the armature is in its retracted position and the valve member 25 is in the position shown in FIGURE 2.
  • the flexible diaphragm 30 will prevent any encrustation of solidified fluid from forming around the movable armature 19 and will protect the moving parts of the solenoid 18 from the fluid to be dispensed.
  • This novel device is, of course, advantageous in that it provides a simple and economical means for increasing the efficiency of a liquid dispensing device (particularly that type of liquid dispenser which is arranged to dispense detergents and the like) by breaking loose any encrustation of solidified fluid which may be formed at the outlet to the valve and thereby preventing any caking of solidified fluid at that outlet.
  • a liquid dispensing valve including a valve body having a chamber, an inlet and an outlet opening to said chamber, the improvement of means for preventing liquid solidification at said outlet and for controlling liquid flow therethrough comprising: a valve plug having an outer diameter substantially equal to the inner diameter of said outlet, an annular outwardly projecting resilient flange connected to and extending transversely to said plug and having an axially projecting annular surface thereon facing said outlet and engageable with the inner surface of said valve body adjacent but slightly radially outwardly spaced from said outlet to shut-off liquid flow through said outlet, and means for effecting axial movement of said plug into and out of said outlet to control liquid flow through said outlet.
  • a liquid dispensing valve including a valve body having a chamber, an inlet and an outlet opening to said chamber, the improvement of means for preventing liquid solidification at said outlet and for controlling liquid flow therethrough comprising: a valve plug formed of resilient material and having an outer diameter substantially equal to the inner diameter of said outlet, an annular outwardly projecting resilient flange formed integrally with said plug and extending transversely thereto and having an axially projecting annular surface thereon facing said outlet and engageable with the inner surface of said valve body adjacent but slightly radially outwardly spaced from said outlet to shut-01f liquid flow through said outlet, a valve actuator connected to said valve plug for efiecting axial movement of said plug into and out of said outlet to control liquid flow through said outlet, and means comprising an integral portion of said plug for scaling 011 said valve actuator from the liquid within said valve body to prevent malfunctioning thereof.
  • a liquid dispensing valve including a valve body having a chamber, an inlet and an outlet port opening to said chamber, the improvement of means for preventing liquid solidification at said outlet port and for controlling liquid flow therethrough comprising: a valve plug having an outer diameter substantially equal to the inner diameter of said outlet port and positionable within said port so that it extends entirely therethrough, an annular outwardly projecting resilient flange connected to and extending transversely to said plug and having an axially projecting annular surface facing said outlet and 4 engageable with the inner surface of said valve body adjacent but slightly radially outwardly spaced from said outlet port to shut off liquid flow through said outlet port, and means for effecting axial movement of said plug into and through and out of said outlet port to control liquid flow therethrough.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Dispensing Beverages (AREA)

Description

May 15, 1962 J. c- JANQUART ANTI-CAKING DISPENSER VALVE Filed Dec. 51. 1957 fig I 77 a71Z z1z? N um/zr c. win/ 20,447 /2 .32 27 I United States Patent 3,034,761 ANTI-CAKING DISPENSER VALVE Jerry C. Janquart, McHenry, Ill., assignor to The Dole Valve Company, Morton Grove, 111., a corporation of Illinois Filed Dec. 31, 1957, Ser. No. 706,526 3 Claims. (Cl. 251-210) This invention relates to methods and apparatus for dispensing liquids, such for example as detergents and the like and more particularly relates to a device especially suitable for use in anautomatic washing machine.
Dispensers of various types have heretofore been used to add detergents bleach, fabric conditions, and the like to the wash water of an automatic washing machine under the cyclic control of the machine.
It has since been found that if air can be excluded from the cleansing agent, or the like, during storage and if the cleansing agent. is dispensed from an air tight container the normal deterioration and gummingup of the cleansing agent in the dispenser can be avoided. Hence, an air tight collapsable cleansing agent storage container has been developed to effect this improvement.
It has also been found that in liquid dispensers having an outlet exposed to the atmosphere, a crust of solidified fluid often forms thereon with the result that such encrustation interferes with the operation of the dispensing device. It has, as a result, been found advantageous to provide a means for breaking loose this encrustation, thereby enhancing the operation of the dispenser.
Accordingly, it is an important object of the present invention to provide a novel method and means for controlling the flow of liquids from a dispenser.
It is a further object of this invention to provide, in a liquid dispenser, a novel means for breaking loose the encrust-ation which may be formed at the outlet of the dispenser.
A still further object of the invention is to provide a novel and improved form of liquid dispenser in which the means operable to open and close the outlet to the dispenser is also arranged to break loose any encrustation of solidified fluid which may be formed at the outlet to the dispenser.
That type of device with which applicants novel device may be associated is fully described in co-pending application Serial N0. 690,789 now Patent Number 2,919,052 wherein the applicant is a joint inventor and which has been assigned to the same assignee as the present invention.
The foregoing and further objects of the invention will become apparent from time to time as the following specification proceeds and with reference to the accompanying drawings wherein:
FIGURE 1 is a fragmentary vertical sectional view through applioants novel device showing some parts in section and others in side elevations; and
FIGURE 2 is a vertical sectional view through a portion of the structure shown in FIGURE 1 and showing the valve in an open position.
In the embodiment of the invention illustrated in the drawings, there is shown a container for containing fluid to be dispensed mounted'on an outlet boss 11 of a valve block 12 by means of a sealing ring 13. A hollow chamber 14 in the valve block 12 and a second hollow chamber 15 in a solenoid block 16 are aligned with one another to form an outlet chamber generally designated at 17.
A well known form of electrically energizable solenoid 18 is mounted on the solenoid block 16 and is rigidly secured thereto. The solenoid includes, of course, a longitudinally reciprocally movable armature 19 which is arranged to be moved upwardly within the armature cylinder 20 upon electrical energization of the solenoid coil 21 and which is arranged to be moved longitudinally extensibly from the armature chamber 20 by a return spring 22. Such a device is well known and old in the art and, as a result, will not be herein described further in detail.
A but-tom 23 which may be formed separately or integrally with the armature 19 is arranged to be secured to the upper end portion of a flexible valve member 25. The flexible outlet valve 25 includes a shank 26 the lower end portion of which is arranged to snugly fit the inner circumference of an outlet port 27 from the outlet chamber 17 which is formed in a slightly bowed out portion 28 of the valve 12.
An annular flexible diaphragm 30 formed integrally with the shank 26 extends laterally therefrom and has a beaded portion 31 at its outer periphery which is arranged to be received within an annular channel 32 formed in the upper surface of the valve block 12.
A second laterally extending flange 33 formed integral-ly with the shank 26 and having a depending ring 34 is arranged to seat against the lower surface of the outlet chamber 17 when the armature 19 is in the position shown in FIGURE 1.
It will now become apparent that the depending ring 34 is arranged to provide a fluid tight seal at the outlet from the valve body when the solenoid armature 19 is in the position shown in FIGURE 1 and that any encrustation of solidified fluid will be broken away from the outlet when the armature is in its retracted position and the valve member 25 is in the position shown in FIGURE 2.
Furthermore, the flexible diaphragm 30 will prevent any encrustation of solidified fluid from forming around the movable armature 19 and will protect the moving parts of the solenoid 18 from the fluid to be dispensed.
This novel device is, of course, advantageous in that it provides a simple and economical means for increasing the efficiency of a liquid dispensing device (particularly that type of liquid dispenser which is arranged to dispense detergents and the like) by breaking loose any encrustation of solidified fluid which may be formed at the outlet to the valve and thereby preventing any caking of solidified fluid at that outlet.
'It should be understood that this embodiment of the invention has been used for illustrative purposes only and that various modifications and variations of the present invention may be effected without departing from the novel spirit and scope of the concepts thereof.
I claim as my invention:
1. In a liquid dispensing valve including a valve body having a chamber, an inlet and an outlet opening to said chamber, the improvement of means for preventing liquid solidification at said outlet and for controlling liquid flow therethrough comprising: a valve plug having an outer diameter substantially equal to the inner diameter of said outlet, an annular outwardly projecting resilient flange connected to and extending transversely to said plug and having an axially projecting annular surface thereon facing said outlet and engageable with the inner surface of said valve body adjacent but slightly radially outwardly spaced from said outlet to shut-off liquid flow through said outlet, and means for effecting axial movement of said plug into and out of said outlet to control liquid flow through said outlet.
2. In a liquid dispensing valve including a valve body having a chamber, an inlet and an outlet opening to said chamber, the improvement of means for preventing liquid solidification at said outlet and for controlling liquid flow therethrough comprising: a valve plug formed of resilient material and having an outer diameter substantially equal to the inner diameter of said outlet, an annular outwardly projecting resilient flange formed integrally with said plug and extending transversely thereto and having an axially projecting annular surface thereon facing said outlet and engageable with the inner surface of said valve body adjacent but slightly radially outwardly spaced from said outlet to shut-01f liquid flow through said outlet, a valve actuator connected to said valve plug for efiecting axial movement of said plug into and out of said outlet to control liquid flow through said outlet, and means comprising an integral portion of said plug for scaling 011 said valve actuator from the liquid within said valve body to prevent malfunctioning thereof.
3. In a liquid dispensing valve including a valve body having a chamber, an inlet and an outlet port opening to said chamber, the improvement of means for preventing liquid solidification at said outlet port and for controlling liquid flow therethrough comprising: a valve plug having an outer diameter substantially equal to the inner diameter of said outlet port and positionable within said port so that it extends entirely therethrough, an annular outwardly projecting resilient flange connected to and extending transversely to said plug and having an axially projecting annular surface facing said outlet and 4 engageable with the inner surface of said valve body adjacent but slightly radially outwardly spaced from said outlet port to shut off liquid flow through said outlet port, and means for effecting axial movement of said plug into and through and out of said outlet port to control liquid flow therethrough.
References Cited in the file of this patent UNITED STATES PATENTS 169,817 Locke Nov. 9, 1875 250,405 Van Vie Dec. 6, 1881 669,146 Porteous Mar. 5, 1901 1,020,076 Bowser Mar. 12, 1912 1,793,396 Haentjens Feb. 17, 1931 1,964,921 Lundberg July 3, 1934 2,394,911 Griswold Feb. 12, 1946 2,444,471 Samiran July 6, 1948 2,506,837 Kochner May 9, 1950 2,727,715 Tuthill Dec. 20, 1955 2,734,773 Ivins Feb. 14, 1956 FOREIGN PATENTS 2,173 Great Britain Feb. 6, 1891 315,687 Switzerland Oct. 15, 1956
US706526A 1957-12-31 1957-12-31 Anti-caking dispenser valve Expired - Lifetime US3034761A (en)

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Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3104090A (en) * 1960-03-07 1963-09-17 Nuclear Products Company Diaphragm valve
US3107894A (en) * 1962-10-17 1963-10-22 Zyrotron Ind Inc Snap acting flow control valve with venturi formed between the orifice and conical valve plug
US3162340A (en) * 1963-09-13 1964-12-22 Dole Valve Co Liquid dispenser
US3190259A (en) * 1962-12-21 1965-06-22 Textile Machine Works Adhesive applicator for carton sealing machines
US3198996A (en) * 1962-06-20 1965-08-03 Junkers & Co Electromagnet actuator having a shock absorbing means
US3286689A (en) * 1963-10-14 1966-11-22 Textile Machine Works Adhesive applicator
US3363605A (en) * 1964-08-25 1968-01-16 Hesselmann Planatolwerk H Apparatus for the application of liquid substances
US3407845A (en) * 1964-11-17 1968-10-29 R D Cooksley Mfg Company Electromagnetically operated valves
US3429552A (en) * 1965-07-08 1969-02-25 Dole Valve Co Adjustable rate valve assembly
US3463363A (en) * 1967-10-12 1969-08-26 Fusion Inc Applicator gun
US3468511A (en) * 1966-12-19 1969-09-23 Robertshaw Controls Co Anti-hunting diaphragm valves
US3528455A (en) * 1966-11-16 1970-09-15 Robertshaw Controls Co Condition responsive parameter control means
US3572631A (en) * 1969-03-26 1971-03-30 Honeywell Inc Motorized valve of globe-type
US3670768A (en) * 1970-06-08 1972-06-20 Dynak Inc Fluid flow control device
US3672627A (en) * 1970-03-02 1972-06-27 Eaton Yale & Towne Diaphragm assembly for pressure operated pilot controlled shut-off valve
US4204555A (en) * 1978-06-12 1980-05-27 Midland-Ross Corporation Exhaust valve assembly
US4826132A (en) * 1987-07-21 1989-05-02 Firma A.U.K. Muller Gmbh & Co. Kg Solenoid valve, especially an outlet valve for infusion water
US4869461A (en) * 1988-08-18 1989-09-26 Siemens-Bendix Automotive Electronics Limited Canister purge valve with resilient armature
US5002086A (en) * 1990-05-11 1991-03-26 Fluoroware, Inc. Plastic control valve
US5004011A (en) * 1990-08-10 1991-04-02 Fluoroware, Inc. Position indicating control valve
USRE34261E (en) * 1981-11-06 1993-05-25 Solenoid valve
WO1995004183A1 (en) * 1993-07-30 1995-02-09 Unilever N.V. Process for dosing detergent compositions
US5546987A (en) * 1981-11-06 1996-08-20 Sule; Akos Solenoid valve
US5791631A (en) * 1995-11-22 1998-08-11 Robertshaw Controls Company Valving assembly
US5964446A (en) * 1996-08-21 1999-10-12 Fisher Controls International, Inc. Elastomeric element valve
US20030107946A1 (en) * 2001-10-25 2003-06-12 Cosby N. Guy Cover slip mixing apparatus and method
US6679476B2 (en) 2000-08-08 2004-01-20 Puregress, Inc. Control valves
US20060016494A1 (en) * 2004-07-23 2006-01-26 Rain Bird Corporation Low-flow valve
US20060054852A1 (en) * 2004-09-14 2006-03-16 Aisin Aw Co., Ltd. Diaphragm and solenoid valve equipped with diaphragm
US20110042598A1 (en) * 2008-02-27 2011-02-24 Eugeniusz Kozak Solenoid-actuated diaphragm valve
US20110186760A1 (en) * 2007-08-07 2011-08-04 Thomas Michl Solenoid valve
US20130168592A1 (en) * 2011-12-29 2013-07-04 Hong Yan Diaphragm Valve

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US169817A (en) * 1875-11-09 Improvement in globe-valves
US250405A (en) * 1881-12-06 Globe cock or valve
US669146A (en) * 1898-05-16 1901-03-05 John Porteous Ball-cock valve.
US1020076A (en) * 1907-04-15 1912-03-12 Sf Bowser & Co Inc Faucet.
US1793396A (en) * 1928-06-21 1931-02-17 Haentjens Otto Diaphragm valve
US1964921A (en) * 1930-06-19 1934-07-03 Lundberg Olof Water-supply cock
US2394911A (en) * 1943-09-09 1946-02-12 Clayton Manufacturing Co Automatic vacuum breaker
US2444471A (en) * 1943-09-29 1948-07-06 Samiran David Switch
US2506837A (en) * 1946-05-10 1950-05-09 Knapp Monarch Co Siphon valve structure
US2727715A (en) * 1952-08-04 1955-12-20 John B Tuthill Valve structure
US2734773A (en) * 1956-02-14 ivins
CH315687A (en) * 1951-11-21 1956-08-31 Stuebbe Friedrich Gate valve

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US169817A (en) * 1875-11-09 Improvement in globe-valves
US250405A (en) * 1881-12-06 Globe cock or valve
US2734773A (en) * 1956-02-14 ivins
US669146A (en) * 1898-05-16 1901-03-05 John Porteous Ball-cock valve.
US1020076A (en) * 1907-04-15 1912-03-12 Sf Bowser & Co Inc Faucet.
US1793396A (en) * 1928-06-21 1931-02-17 Haentjens Otto Diaphragm valve
US1964921A (en) * 1930-06-19 1934-07-03 Lundberg Olof Water-supply cock
US2394911A (en) * 1943-09-09 1946-02-12 Clayton Manufacturing Co Automatic vacuum breaker
US2444471A (en) * 1943-09-29 1948-07-06 Samiran David Switch
US2506837A (en) * 1946-05-10 1950-05-09 Knapp Monarch Co Siphon valve structure
CH315687A (en) * 1951-11-21 1956-08-31 Stuebbe Friedrich Gate valve
US2727715A (en) * 1952-08-04 1955-12-20 John B Tuthill Valve structure

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3104090A (en) * 1960-03-07 1963-09-17 Nuclear Products Company Diaphragm valve
US3198996A (en) * 1962-06-20 1965-08-03 Junkers & Co Electromagnet actuator having a shock absorbing means
US3107894A (en) * 1962-10-17 1963-10-22 Zyrotron Ind Inc Snap acting flow control valve with venturi formed between the orifice and conical valve plug
US3190259A (en) * 1962-12-21 1965-06-22 Textile Machine Works Adhesive applicator for carton sealing machines
US3162340A (en) * 1963-09-13 1964-12-22 Dole Valve Co Liquid dispenser
US3286689A (en) * 1963-10-14 1966-11-22 Textile Machine Works Adhesive applicator
US3363605A (en) * 1964-08-25 1968-01-16 Hesselmann Planatolwerk H Apparatus for the application of liquid substances
US3407845A (en) * 1964-11-17 1968-10-29 R D Cooksley Mfg Company Electromagnetically operated valves
US3429552A (en) * 1965-07-08 1969-02-25 Dole Valve Co Adjustable rate valve assembly
US3528455A (en) * 1966-11-16 1970-09-15 Robertshaw Controls Co Condition responsive parameter control means
US3468511A (en) * 1966-12-19 1969-09-23 Robertshaw Controls Co Anti-hunting diaphragm valves
US3463363A (en) * 1967-10-12 1969-08-26 Fusion Inc Applicator gun
US3572631A (en) * 1969-03-26 1971-03-30 Honeywell Inc Motorized valve of globe-type
US3672627A (en) * 1970-03-02 1972-06-27 Eaton Yale & Towne Diaphragm assembly for pressure operated pilot controlled shut-off valve
US3670768A (en) * 1970-06-08 1972-06-20 Dynak Inc Fluid flow control device
US4204555A (en) * 1978-06-12 1980-05-27 Midland-Ross Corporation Exhaust valve assembly
USRE34261E (en) * 1981-11-06 1993-05-25 Solenoid valve
US5546987A (en) * 1981-11-06 1996-08-20 Sule; Akos Solenoid valve
US4826132A (en) * 1987-07-21 1989-05-02 Firma A.U.K. Muller Gmbh & Co. Kg Solenoid valve, especially an outlet valve for infusion water
US4869461A (en) * 1988-08-18 1989-09-26 Siemens-Bendix Automotive Electronics Limited Canister purge valve with resilient armature
US5002086A (en) * 1990-05-11 1991-03-26 Fluoroware, Inc. Plastic control valve
US5004011A (en) * 1990-08-10 1991-04-02 Fluoroware, Inc. Position indicating control valve
AU694435B2 (en) * 1993-07-30 1998-07-23 Diversey, Inc. Process for dosing detergent compositions
WO1995004183A1 (en) * 1993-07-30 1995-02-09 Unilever N.V. Process for dosing detergent compositions
US5791631A (en) * 1995-11-22 1998-08-11 Robertshaw Controls Company Valving assembly
US5964446A (en) * 1996-08-21 1999-10-12 Fisher Controls International, Inc. Elastomeric element valve
US6102071A (en) * 1996-08-21 2000-08-15 Fisher Controls International, Inc. Elastomeric element valve
US6679476B2 (en) 2000-08-08 2004-01-20 Puregress, Inc. Control valves
US6939032B2 (en) * 2001-10-25 2005-09-06 Erie Scientific Company Cover slip mixing apparatus
US20030107946A1 (en) * 2001-10-25 2003-06-12 Cosby N. Guy Cover slip mixing apparatus and method
US20060016494A1 (en) * 2004-07-23 2006-01-26 Rain Bird Corporation Low-flow valve
US7201187B2 (en) * 2004-07-23 2007-04-10 Rain Bird Corporation Low-flow valve
US20070199600A1 (en) * 2004-07-23 2007-08-30 Rain Bird Corporation Low-Flow Valve
US7503348B2 (en) 2004-07-23 2009-03-17 Rain Bird Corporation Low-flow valve
US20060054852A1 (en) * 2004-09-14 2006-03-16 Aisin Aw Co., Ltd. Diaphragm and solenoid valve equipped with diaphragm
US20110186760A1 (en) * 2007-08-07 2011-08-04 Thomas Michl Solenoid valve
US8348230B2 (en) * 2007-08-07 2013-01-08 Robert Bosch Gmbh Solenoid valve
US20110042598A1 (en) * 2008-02-27 2011-02-24 Eugeniusz Kozak Solenoid-actuated diaphragm valve
US20130168592A1 (en) * 2011-12-29 2013-07-04 Hong Yan Diaphragm Valve

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