US3837355A - Apparatus for bleeding metered increments of a compressed gas from a container - Google Patents

Apparatus for bleeding metered increments of a compressed gas from a container Download PDF

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Publication number
US3837355A
US3837355A US00321382A US32138273A US3837355A US 3837355 A US3837355 A US 3837355A US 00321382 A US00321382 A US 00321382A US 32138273 A US32138273 A US 32138273A US 3837355 A US3837355 A US 3837355A
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US
United States
Prior art keywords
valve
actuating member
cavity
bleeding
opening
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
US00321382A
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English (en)
Inventor
W Wirges
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.)
Stabilus GmbH
Original Assignee
Stabilus GmbH
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
Priority claimed from DE19722200893 external-priority patent/DE2200893C3/de
Application filed by Stabilus GmbH filed Critical Stabilus GmbH
Application granted granted Critical
Publication of US3837355A publication Critical patent/US3837355A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
    • 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
    • Y10T137/3584—Inflatable article [e.g., tire filling chuck and/or stem]
    • Y10T137/3662—With gauge or indicator
    • Y10T137/3677—With deflating 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
    • Y10T137/598—With repair, tapping, assembly, or disassembly means
    • Y10T137/612—Tapping a pipe, keg, or apertured tank under pressure
    • Y10T137/613—With valved closure or bung
    • Y10T137/6137—Longitudinal movement of valve
    • 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
    • Y10T137/8593—Systems
    • Y10T137/86919—Sequentially closing and opening alternately seating flow controllers

Definitions

  • This invention relates to pressure adjustment in containers holding a gas under superatmospheric pressure, and particularly to apparatus for bleeding metered increments of a compressed gas from a container.
  • the primary object of the invention is the provision of apparatus which permits precisely identical volumes of gas to be released in each bleeding step, thereby permitting the desired pressure to be reached in a readily predictable manner with fewer measurements being needed.
  • the invention in its more specific aspects, provides a vessel whose rigid walls bound a cavity of fixed volume.
  • a receptacle on the vessel communicates with the cavity and is shaped to receive the connector on the shock absorber or other container that it is desired to relieve of gas under superatmospheric pressure in gas-tight engagement while the bleeding valve in the connector is closed and while it is open.
  • a venting valve on the vessel is movable between an open position in which it connects the cavity of the vessel to the ambient atmosphere and a closed position.
  • a manually operable valve actuating member is mounted on the vessel for movement between'a bleeding position and a venting position. It is connected with the venting valve for moving the same from the open to the closed position when the actuating member moves from the venting to the bleeding position, and the venting valve is moved from the closed to the open position when the actuating member moves from the bleeding position to the venting position.
  • the valve actuating member When in the bleeding position, the valve actuating member extends into the afore-mentioned receptacle for opening the bleeding valve of a connector received in the receptacle.
  • FIG; 1 shows bleeding apparatus and the connector of a container to be bledthereby according to this invention in elevational section
  • FIG: 2 shows the devicesof FIG. 1 in elevation, and partly in section, in the connected condition.
  • FIG. 1 there is shown ;a cylindrical vessel whose axialwall 7 is integral with a heavy bottom wall 16 closing the cavity 4 of the vessel inone axial direction except for anaxial, central opening 11 of circular cross section.
  • A. portion ofthe wall .16 provides the wallsof a receptacle 14 which forms the enlarged orifice of the 1 opening 11.
  • a radial shoulder 21 in the receptacle 14 is covered by a resilient sealing ring 5, and the axial wall of the receptacle 14 carries female threads 6.
  • the receptacle 14 is shaped for gas-tight engagement with an externally threaded nipple 14' on a hydropneumatic shock absorber, not otherwise shown in detail.
  • the operating pin 25 of a valve normally biased toward the closed position by internal pressure in the shock absorber is coaxially arranged with ample clearance in the bore 15 of the nipple 14.
  • the valve not itself shown, is of the type well known from the tires of any automobile or bicycle, and it is opened when the pin 25 is pushed inward of the nipple 14'.
  • the radial top wall of the vessel is formed by an annular plug 10 axially secured in the wall 7 between an integral shoulder 8 of the latter and a circular, circumferential rib formed in the wall 7 by rolling a groove 9 into its outer face after insertion of the plug 10.
  • An 0- ring 22 in an annular groove of the plug 10 seals the plug to the inner face of the wall 7.
  • the plug 10 has an axial, central bore of stepped cylindrical shape.
  • the outer bore portion 18 has a greater cross section than the inner portion 17.
  • a straight rod having a heavier cylindrical portion 1 and a reduced, cylindrical portion 12 is coaxially guided in the bore of the plug 10 and in the opening 11 whose cross section is smaller than that of the inner bore portion 17, but greater by a clearance 13 than that of the rod portion 12.
  • a circumferential groove 20 in the rod portion 1 receives a valve ring 2 of toroidal shape and elastomeric material so dimensioned that its cross section in the illustrated relaxed condition is smaller than that of the outer bore portion 18 in which it isreceived in the illustrated or venting position of the actuating rod, but greater than that of the inner bore portion 17.
  • the spherically rounded end of the rod portion 1 projects axially from the vessel in the illustrated position as far asabutment of a spring clip 3'against the wall of the plug 10 in the cavity 4 permits.
  • the clip is of the conventional approximate C-shape so that an opening 24 in the clip connects the cavity 4 with an annular gap 19 between the plug 10 and the rod portion 1 in the bore 17 and thus with the ambient atmosphere in the illustrated position of the clip 3.
  • a pressure gage 23 is mounted on that portion'of the wall 7 which is cut away in the view of FIG. 1'. It is shown in FIG. 2 and communicates with the cavity 4 in an obvious manner, not specifically illustrated.
  • the clip 3: and valve ring 2 are mounted on the rod portion 1 before the rounded end of the latter is inserted intothe bore portion 17 of the plug 10.
  • the latter is then placed in the open end of the container 7,16, free of the groove 9at this stage, until the plug abuts againstthe shoulder 8, the reduced end 12 of the actuating rod being guided toward the opening 11 by the conically tapering inner face of the wall 16.
  • the groove 9 is rolledinto the wall 7, and the sealing ring 5 is insertedinto the receptacle As is shown in FIG.
  • the bleeding apparatus is operated by first engaging the external threads on the nipple l4 ofashockabsorber B with the threads 6 until the free end of the nipple 14' sealingly engages the disc 5.
  • Therounded endof the rod portion 1 is then pushed manually inward of the cavity 4, whereby the sealing ring 2 is caused to enter the narrower bore portion 17 and to seal the cavity 4 from the atmosphere.
  • the reduced rod portion 12 thereafter enters the receptacle l4 and the bore 15 of the nipple l4, ultimately depressing the pin 25 of the normally closed valve, not otherwise shown, on the shock absorber B. Gas flows from the latter into the cavity 4 until pressure equilibrium is reached.
  • the cavity 4 now contains a precisely defined volume of gas at a pressure which may be read from the gage 23.
  • the gas pressure in the bleeding apparatus biases the rod portion 1 outward of the bore 18, and the rod is returned to the position illustrated in FIG. 1, if manual pressure on its projecting end is relaxed.
  • the valve pin 25 returns to its sealing position, the cavity 4 is vented to the atmosphere, and the apparatus is ready for another bleeding operation.
  • the gage 23 may be calibrated in numbers of bleeding cycles required for reducing the pressure in a shock absorber of standardized structure and dimensions from the pressure prevailing after the first bleeding to a design pressure so that the operator need only depress the rod portion 1 as often as a first gage reading indicates.
  • the gage also may be calibrated in units of pressure, and the rod end depressed repeatedly until the gage reading after bleeding drops to the desired value.
  • a precisely equal volume of gas is bled from the shock absorber B in each operating cycle so that an operator may adjust the shock absorber to a precise internal pressure by a fixed number of bleeding cycles if the starting pressure is held uniform.
  • the gage 23 is unnecessary under such conditions. The bleeding operation is completed very quickly.
  • bleeding device of the invention has been described with reference to pressure adjustment in a hydropneumatic shock absorber, and the specific embodiment illustrated has dimensions and structural features suitable for withstanding the very high gas pressures encountered in such service, the invention is not limited to the specific application for which it was originally intended, and other fields of use readily present themselves, such as the charging of a mechanical refrigeration system with a normally gaseous refrigerant and the inflation of tires from a compressed air line not equipped with a pressure limiting valve.
  • the necessary changes in the configuration of the receptacle l4 and other details will readily suggest themselves to those skilled in the art.
  • Apparatus for establishing a predetermined, superatmospheric pressure in a body of gas comprising, in combination: a. a container adapted to receive said body; b. a connector extending outward from said con tainer; c. a first valve movable in said connector between an open position and a closed position, said valve being biased toward said closed position when said body of gas is received in said container; d. a vessel having rigid walls and bounding a cavity of fixed volume; e. receptacle means on said vessel for releasably receiving said connector in gas-tight engagement; f. a second valve on said vessel movable between an open position on which said second valve connects said cavity to the ambient atmosphere and a closed condition; and g.
  • a manually operable valve actuating member mounted on said vessel for movement between a bleeding position and a venting position, 1. said actuating member being connected to said second valve for moving the same from the open to the closed position thereof when said actuating member moves from the venting to the bleeding position, and for moving said second valve from the closed to the open position when said actuating member moves from the bleeding position to the venting position, 2. said valve actuating member, when said connector is received in said recep tacle means, engaging said first valve and moving said first valve from the closed position to the open position of said first valve when said actuating member moves from said venting to said bleeding position.
  • said one opening has an inner portion adjacent said cavity and an outer portion offset from said inner portion toward said ambient atmosphere, said valve member being annular and of yieldably resilient material, said inner portion having a cross section smaller than the cross section of said valve member in the relaxed condition thereof and receiving said valve member in the bleeding position of said actuating member, and said outer portion having a cross section greater than said cross section'of said valve member and receiving the valve member in said venting position of the actuating member.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Safety Valves (AREA)
  • Control Of Fluid Pressure (AREA)
US00321382A 1972-01-08 1973-01-05 Apparatus for bleeding metered increments of a compressed gas from a container Expired - Lifetime US3837355A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722200893 DE2200893C3 (de) 1972-01-08 Druckregeleinrichtung für Gasfedern zum Aufsatz auf das Füllventil

Publications (1)

Publication Number Publication Date
US3837355A true US3837355A (en) 1974-09-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00321382A Expired - Lifetime US3837355A (en) 1972-01-08 1973-01-05 Apparatus for bleeding metered increments of a compressed gas from a container

Country Status (4)

Country Link
US (1) US3837355A (member.php)
JP (1) JPS4874618A (member.php)
FR (1) FR2167921B3 (member.php)
GB (1) GB1371298A (member.php)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8480064B2 (en) 2010-07-09 2013-07-09 Specialized Bicycle Components, Inc. Bicycle with suspension
US8740237B2 (en) 2011-09-23 2014-06-03 Specialized Bicycle Components, Inc. Bicycle with suspension

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1247868B (it) * 1989-12-11 1995-01-04 Giuseppe Marini Valvola di sicurezza per controllo e ricarica degli organi che utilizzano l'alta pressione negli automezzi.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1318402A (en) * 1919-10-14 Qtjiitcy moses
US2418440A (en) * 1945-01-05 1947-04-01 Martin H White Pressure operated drain valve
US2704650A (en) * 1955-03-22 Faucet
FR1089873A (fr) * 1953-12-24 1955-03-22 Doseur-distributeur, plus spécialement pour bidon
US3047018A (en) * 1958-12-22 1962-07-31 A Responsibilite Ltd Rech S Et Fluid distributor device
US3199747A (en) * 1964-03-12 1965-08-10 Dole Valve Co Sanitizing measuring valve for fluid dispenser
US3254805A (en) * 1963-08-01 1966-06-07 Lloyd D Barger Adjustable liquid metering device having a fluid container subjected to intermittent internal pressures different from that of atmospheric pressure
US3389886A (en) * 1963-05-13 1968-06-25 A R L Named S T Dupont Soc Pneumatic pilot valve with snap action

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1318402A (en) * 1919-10-14 Qtjiitcy moses
US2704650A (en) * 1955-03-22 Faucet
US2418440A (en) * 1945-01-05 1947-04-01 Martin H White Pressure operated drain valve
FR1089873A (fr) * 1953-12-24 1955-03-22 Doseur-distributeur, plus spécialement pour bidon
US3047018A (en) * 1958-12-22 1962-07-31 A Responsibilite Ltd Rech S Et Fluid distributor device
US3389886A (en) * 1963-05-13 1968-06-25 A R L Named S T Dupont Soc Pneumatic pilot valve with snap action
US3254805A (en) * 1963-08-01 1966-06-07 Lloyd D Barger Adjustable liquid metering device having a fluid container subjected to intermittent internal pressures different from that of atmospheric pressure
US3199747A (en) * 1964-03-12 1965-08-10 Dole Valve Co Sanitizing measuring valve for fluid dispenser

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8480064B2 (en) 2010-07-09 2013-07-09 Specialized Bicycle Components, Inc. Bicycle with suspension
US9057416B2 (en) 2010-07-09 2015-06-16 Specialized Bicycle Components, Inc. Bicycle with suspension
US9328793B2 (en) 2010-07-09 2016-05-03 Specialized Bicycle Components, Inc. Bicycle with suspension
US9556923B2 (en) 2010-07-09 2017-01-31 Specialized Bicycle Components, Inc. Bicycle with suspension
US9759283B2 (en) 2010-07-09 2017-09-12 Specialized Bicycle Components, Inc. Bicycle with suspension
US10161474B2 (en) 2010-07-09 2018-12-25 Specialized Bicycle Components, Inc. Bicycle with suspension
US8740237B2 (en) 2011-09-23 2014-06-03 Specialized Bicycle Components, Inc. Bicycle with suspension
US9399496B2 (en) 2011-09-23 2016-07-26 Specialized Bicycle Components, Inc. Method of shock absorber adjustment
US9821878B2 (en) 2011-09-23 2017-11-21 Specialized Bicycle Components, Inc. Bicycle with suspension

Also Published As

Publication number Publication date
JPS4874618A (member.php) 1973-10-08
DE2200893B2 (member.php) 1975-08-21
FR2167921A1 (member.php) 1973-08-24
GB1371298A (en) 1974-10-23
DE2200893A1 (de) 1973-07-19
FR2167921B3 (member.php) 1976-01-09

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