US2549409A - Automatic change-over valve - Google Patents

Automatic change-over valve Download PDF

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Publication number
US2549409A
US2549409A US16481A US1648148A US2549409A US 2549409 A US2549409 A US 2549409A US 16481 A US16481 A US 16481A US 1648148 A US1648148 A US 1648148A US 2549409 A US2549409 A US 2549409A
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United States
Prior art keywords
chamber
valve
float
liquid
supply
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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
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US16481A
Inventor
Phillip S Atkinson
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Standard Oil Development Co
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Standard Oil Development Co
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Publication date
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Priority to US16481A priority Critical patent/US2549409A/en
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Publication of US2549409A publication Critical patent/US2549409A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • F17C13/04Arrangement or mounting of valves
    • F17C13/045Automatic change-over switching assembly for bottled gas systems with two (or more) gas containers
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/2496Self-proportioning or correlating systems
    • Y10T137/2559Self-controlled branched flow systems
    • Y10T137/2564Plural inflows
    • Y10T137/2567Alternate or successive inflows
    • Y10T137/2569Control by depletion of source
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/4673Plural tanks or compartments with parallel flow
    • Y10T137/4807Tank type manifold [i.e., one tank supplies or receives from at least two others]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/4673Plural tanks or compartments with parallel flow
    • Y10T137/4857With manifold or grouped outlets

Definitions

  • the present invention relates to a means for manifolding two or more sources of liquid supply by which upon exhaustion of the supply from one source, another source is automatically opened into the system. More specifically, it is an object of the invention to provide means whereby apparatus such as a liquid fuel burner,
  • the numeral l designates one of two storage tanks for liquid fuel, and numeral 2, the other.
  • a manifold chamber 3 is connected to tanks l and 2 by means of inlet lines or conduits 4 and 5 respectively, and to a fuel burner, or other means for utilization of the liquid stored in the tanks, by means of discharge line or conduit 6.
  • a vent line 1 opens from the manifold 3 to the atmosphere at a point above the level of the tanks l and 2.
  • the line 4 is provided with a check valve 8, preventing backflow from the manifold chamber,
  • control valve 9 preferably located within the manifold chamber.
  • a float mechanism including float member I0 and valve operating arm or lever H is mounted within the manifold chamber, as by a pivot I2, with the arm ll pivotally connected to the valve stem 9a.
  • Float controlled valve means other than that which is illustrated may be substituted as desired.
  • the flow from tank 2 may be intermittent due to the float controlled operation of the valve 9 as the level of liquid in the manifold chamber rises or falls, or it may adjust itself to a substantially constant rate which is equivalent to the rate of discharge through line B when use is continuous. This will not afiect the supply to the point of use, however, as the quantity of liquid in the chamber at all times will be adequate to maintain such supply constant.
  • liquid from tank I When refilling the two tanks, liquid from tank I will immediately flood the chamber 3 and effectively seal off tank 2, by means of the float operated valve 9, which may be so adjusted as to operate even against the gravimetric pressure of the full contents of tank 2.
  • the location'of the float l0, and its operative connection through the lever arm ll may be in any fashion suitable to provide full manipulation or control of the valve 9, the only requirements being that the upper and lower limits of float travel are adequate respectively to fully close or fully open the valve 9, and the lower limit above the bottom of the chamber 3.
  • the float means to open and close the respective valve should be arranged at successive levels upward of the manifold chamber, and so that the upper limits of float travel of each float will at least par-.
  • check valves are preferably provided in each of the inlet conduits opening into the chamber 3.
  • Means for distributing and controlling liquid flow from at least twoseparate supply sources comprising a vented manifold chamber, a discharge conduit opening from said chamber, a primary inlet conduit opening into said chamber from one supply source, said conduit having a check valve against back-flow from the chamber, a secondary inlet conduit opening into said chamber from another supply source, a valve in said conduit, float means in said chamber, an operating lever connected to said valve and to the float means, moveable with said means to open the valve when the liquid in said chamber from any source is below a predetermined level.
  • Means for distributing and controlling liquid flow from tWo separate supply sources comprising a vented manifold chamber, a primary and a secondary supply source, each disposed above the level of said chamber for gravity feed thereto, a discharge conduit opening from said chamber, an inlet conduit to said chamber from the primary supply source, said conduit having a check valve against back pressure from the chamber, an inlet conduit opening into said chamber from said secondary supply source, a valve in said conduit, float means in the chamber, and an operating lever connected to said valve and to the float means to open the valve when the liquid in said chamber from the primary source has been substantially exhausted.

Description

April 17, 1951 P. s. ATKINSON AUTOMATIC CHANGEOVER VALVE Filed March 23, 1948 Vent I L/q v/d Fuel Szorage TANK LR; and Fuel Man/f0 Za Chamber Patented Apr. 17, 1951 AUTOMATIC CHANGE-OVER VALVE Phillip S. Atkinson, Noroton, Conn., assignor to Standard Oil Development Company, a corporation of Delaware Application March 23, 1948, Serial No. 16,481
2 Claims.
The present invention relates toa means for manifolding two or more sources of liquid supply by which upon exhaustion of the supply from one source, another source is automatically opened into the system. More specifically, it is an object of the invention to provide means whereby apparatus such as a liquid fuel burner,
' quent refilling, and because of the comparatively small delivery made on each occasion, delivery costs are unnecessarily high. To overcome this condition, larger tanks may be installed, but in many. instances such replacement is not practicable on a cost basis or otherwise. Duplication of existing storage would often be feasible except for the fact that the uncontrolled interconnection of separate storage tanks with a common feed line ordinarily is not accepted as good practice. Where special valve connections are used normally to isolate one supply source from another, difliculties are experienced due either to the need for manual operation, or to the expense and complication of automatic valve operating equipment. It is an object of the present invention to provide relatively simple means to manifold a series of supply sources by which upon depletion of one source the next is automatically drawn upon in succession, and to the exclusion of the others.
The invention and its objects may be more readily understood from the following description when read in conjunction with the accompanying drawing.
Referring specifically to the drawing, in which the apparatus is shown in generally diagrammatic fashion, the numeral l designates one of two storage tanks for liquid fuel, and numeral 2, the other. A manifold chamber 3 is connected to tanks l and 2 by means of inlet lines or conduits 4 and 5 respectively, and to a fuel burner, or other means for utilization of the liquid stored in the tanks, by means of discharge line or conduit 6. A vent line 1 opens from the manifold 3 to the atmosphere at a point above the level of the tanks l and 2.
The line 4 is provided with a check valve 8, preventing backflow from the manifold chamber,
. manifold chamber 3.
and line 5 is provided with a control valve 9, preferably located within the manifold chamber. A float mechanism, including float member I0 and valve operating arm or lever H is mounted within the manifold chamber, as by a pivot I2, with the arm ll pivotally connected to the valve stem 9a. Float controlled valve means other than that which is illustrated may be substituted as desired.
In operation liquid from tank I flows into the The float I0 is raised thereby to depress the opposite end of arm ll and valve stem 9a, and close-valve 9. Normally the float I!) will be submerged by liquid. from the tank I until the supply therefrom is substantially exhausted. When the supply of liquid from tank I is exhausted, the level of liquid in the manifold chamber will be gradually reduced by continued supply to the point of use, through line 6, thus lowering float H]. The float, having sufiicient weight and the arm ll sufficient leverage, the valve 9 is opened thereby and liquid permitted to enter the manifold chamber from tank 2, through line 5. The check valve 8 in line 4 will prevent back-flow of liquid from tank 2 into tank I by way of the manifold chamber 3.
The flow from tank 2 may be intermittent due to the float controlled operation of the valve 9 as the level of liquid in the manifold chamber rises or falls, or it may adjust itself to a substantially constant rate which is equivalent to the rate of discharge through line B when use is continuous. This will not afiect the supply to the point of use, however, as the quantity of liquid in the chamber at all times will be adequate to maintain such supply constant. When refilling the two tanks, liquid from tank I will immediately flood the chamber 3 and effectively seal off tank 2, by means of the float operated valve 9, which may be so adjusted as to operate even against the gravimetric pressure of the full contents of tank 2.
The location'of the float l0, and its operative connection through the lever arm ll may be in any fashion suitable to provide full manipulation or control of the valve 9, the only requirements being that the upper and lower limits of float travel are adequate respectively to fully close or fully open the valve 9, and the lower limit above the bottom of the chamber 3. Where more than two tanks are connected tothe manifold 3, the float means to open and close the respective valve should be arranged at successive levels upward of the manifold chamber, and so that the upper limits of float travel of each float will at least par-.
tially overlap the lowermost limit of the float next above in succession. In such event, the upper limit of the uppermost float must be below the top of the manifold chamber. Also, where more than two sources of supply are utilized, check valves are preferably provided in each of the inlet conduits opening into the chamber 3.
Although the invention has been described and illustrated more or less specifically for the purpose of illustration, it is contemplated that various modifications may be made in the structural elements, and its application or use may be other than as described without departing from the inventive concept. It is not intended, therefore, that the invention be limited by such illustration and description, but only by the appended claims.
I claim:
1. Means for distributing and controlling liquid flow from at least twoseparate supply sources, comprising a vented manifold chamber, a discharge conduit opening from said chamber, a primary inlet conduit opening into said chamber from one supply source, said conduit having a check valve against back-flow from the chamber, a secondary inlet conduit opening into said chamber from another supply source, a valve in said conduit, float means in said chamber, an operating lever connected to said valve and to the float means, moveable with said means to open the valve when the liquid in said chamber from any source is below a predetermined level.
2. Means for distributing and controlling liquid flow from tWo separate supply sources, comprising a vented manifold chamber, a primary and a secondary supply source, each disposed above the level of said chamber for gravity feed thereto, a discharge conduit opening from said chamber, an inlet conduit to said chamber from the primary supply source, said conduit having a check valve against back pressure from the chamber, an inlet conduit opening into said chamber from said secondary supply source, a valve in said conduit, float means in the chamber, and an operating lever connected to said valve and to the float means to open the valve when the liquid in said chamber from the primary source has been substantially exhausted.
PHILLIP S. ATKINSON.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,258,938 Pape Mar. 12, 1918 1,787,130 Turner nee. 30, 1930 1,952,000 'Skuttle 1 Mar. '20, 1934 1,962,991 Lani; June 12, 1934 2,138,988 Thomas Dec. '6, 1938 2,170,136 Gavin Aug. '22, 1939 2,263,252 'Tallinan; Nov. 18, 1941 FOREIGN PATENTS Number Country Date 148,201 Great Britain -July 9, -1920
US16481A 1948-03-23 1948-03-23 Automatic change-over valve Expired - Lifetime US2549409A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256103A (en) * 1978-10-11 1981-03-17 James Paxinos Automatic sequential fluid flow apparatus
US4306579A (en) * 1978-07-17 1981-12-22 Kelly Michael J Multi-tank fuel control system
US4763621A (en) * 1986-07-01 1988-08-16 Stevens Walter J Automatically functioning emergency fuel supply system for internal combustion engine
US20060086387A1 (en) * 2004-10-21 2006-04-27 Amit Gupta Continuous chemical feeder and method of use thereof
US20070215209A1 (en) * 2006-03-20 2007-09-20 Street Paul T Apparatus and methods to dispense fluid from a bank of containers and to refill same
US20120291902A1 (en) * 2010-05-06 2012-11-22 Toyota Jidosha Kabushiki Kaisha System for hydrogen charging
US20120312377A1 (en) * 2011-06-10 2012-12-13 William Beeson Fuel float valve
AU2008266126B2 (en) * 2007-06-15 2014-07-24 Tescom Corporation Apparatus and methods to dispense fluid from a bank of containers and to refill same

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1258938A (en) * 1917-12-17 1918-03-12 August H Pape Means for supplying fuel to internal-combustion engines.
GB148201A (en) * 1919-05-20 1921-10-10 Pintsch Julius Ag Means for consecutively discharging two or more gas-holders into a common supply main
US1787130A (en) * 1927-01-03 1930-12-30 Edward T Turner Level-controlling device for liquid containers
US1952000A (en) * 1931-06-30 1934-03-20 John L Skuttle Water supply regulator for humidifiers
US1962991A (en) * 1930-12-01 1934-06-12 Frank W Laux Humidifier valve
US2138988A (en) * 1937-09-14 1938-12-06 Phillips Petroleum Co Automatic change-over device
US2170136A (en) * 1939-02-15 1939-08-22 Edward M Gavin Reserve fuel control system
US2263252A (en) * 1939-03-09 1941-11-18 Beech Nut Packing Co Liquid level control

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1258938A (en) * 1917-12-17 1918-03-12 August H Pape Means for supplying fuel to internal-combustion engines.
GB148201A (en) * 1919-05-20 1921-10-10 Pintsch Julius Ag Means for consecutively discharging two or more gas-holders into a common supply main
US1787130A (en) * 1927-01-03 1930-12-30 Edward T Turner Level-controlling device for liquid containers
US1962991A (en) * 1930-12-01 1934-06-12 Frank W Laux Humidifier valve
US1952000A (en) * 1931-06-30 1934-03-20 John L Skuttle Water supply regulator for humidifiers
US2138988A (en) * 1937-09-14 1938-12-06 Phillips Petroleum Co Automatic change-over device
US2170136A (en) * 1939-02-15 1939-08-22 Edward M Gavin Reserve fuel control system
US2263252A (en) * 1939-03-09 1941-11-18 Beech Nut Packing Co Liquid level control

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306579A (en) * 1978-07-17 1981-12-22 Kelly Michael J Multi-tank fuel control system
US4256103A (en) * 1978-10-11 1981-03-17 James Paxinos Automatic sequential fluid flow apparatus
US4763621A (en) * 1986-07-01 1988-08-16 Stevens Walter J Automatically functioning emergency fuel supply system for internal combustion engine
EP1802900A4 (en) * 2004-10-21 2011-04-27 Nalco Co Continuous chemical feeder and method of use thereof
US20060086387A1 (en) * 2004-10-21 2006-04-27 Amit Gupta Continuous chemical feeder and method of use thereof
WO2006047224A3 (en) * 2004-10-21 2006-12-21 Nalco Co Continuous chemical feeder and method of use thereof
US7201178B2 (en) * 2004-10-21 2007-04-10 Nalco Company Continuous chemical feeder and method of use thereof
EP1802900A2 (en) * 2004-10-21 2007-07-04 Nalco Company Continuous chemical feeder and method of use thereof
WO2006047224A2 (en) 2004-10-21 2006-05-04 Nalco Company Continuous chemical feeder and method of use thereof
US8707977B2 (en) 2006-03-20 2014-04-29 Tescom Corporation, A Minnesota Company Apparatus and methods to dispense fluid from a bank of containers and to refill same
JP2009530566A (en) * 2006-03-20 2009-08-27 テスコム・コーポレーション Apparatus and method for dispensing fluid from a series of containers and for refilling the series of containers
US8056577B2 (en) * 2006-03-20 2011-11-15 Tescom Corporation Apparatus and methods to dispense fluid from a bank of containers and to refill same
US8636025B2 (en) 2006-03-20 2014-01-28 Tescom Corporation Apparatus and methods to dispense fluid from a bank of containers and to refill same
KR101376955B1 (en) 2006-03-20 2014-03-20 테스콤 코포레이션 Apparatus and methods to dispense fluid from a bank of containers and to refill same
US20070215209A1 (en) * 2006-03-20 2007-09-20 Street Paul T Apparatus and methods to dispense fluid from a bank of containers and to refill same
AU2008266126B2 (en) * 2007-06-15 2014-07-24 Tescom Corporation Apparatus and methods to dispense fluid from a bank of containers and to refill same
US20120291902A1 (en) * 2010-05-06 2012-11-22 Toyota Jidosha Kabushiki Kaisha System for hydrogen charging
US8714183B2 (en) * 2010-05-06 2014-05-06 Toyota Jidosha Kabushiki Kaisha System for hydrogen charging
US20120312377A1 (en) * 2011-06-10 2012-12-13 William Beeson Fuel float valve
US8997780B2 (en) * 2011-06-10 2015-04-07 Hamilton Sundstrand Corporation Fuel float valve
US9732872B2 (en) 2011-06-10 2017-08-15 Hamilton Sundstrand Corporation Fuel float valve

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