US2978144A - Self-emptying pressure vessels - Google Patents

Self-emptying pressure vessels Download PDF

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Publication number
US2978144A
US2978144A US646486A US64648657A US2978144A US 2978144 A US2978144 A US 2978144A US 646486 A US646486 A US 646486A US 64648657 A US64648657 A US 64648657A US 2978144 A US2978144 A US 2978144A
Authority
US
United States
Prior art keywords
vessel
tube
active substance
closed
driving
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
US646486A
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English (en)
Inventor
Rilinger Alfons
Wehmeyer Helmut
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.)
ROTO WERKE AG
ROTO-WERKE AG
Original Assignee
ROTO WERKE AG
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 ROTO WERKE AG filed Critical ROTO WERKE AG
Application granted granted Critical
Publication of US2978144A publication Critical patent/US2978144A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/60—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated
    • B65D83/62—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by membranes, bags or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/771—Containers or packages with special means for dispensing contents for dispensing fluent contents by means of a flexible bag or a deformable membrane or diaphragm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS 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
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS 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
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0176—Shape variable
    • F17C2201/018—Shape variable with bladders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0176—Shape variable
    • F17C2201/0185—Shape variable with separating membrane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0176—Shape variable
    • F17C2201/019—Shape variable with pistons

Definitions

  • the driving or urging medium conventionally takes the form of liquefied gases such as, for instance, chloromethyl, propane, butane, Freon (difluordichloromethane) or the like which evaporate at room temperature of for example 20-30 C.
  • vessels known as aerosol regulating vessels wherein a liquid driving medium is mixed with the active substance and expels or entrains it when the vessel closure means are opened. In this case, therefore, a mixture of driving medium and active substance issues from the vessel.
  • the printing ink should be kept separate from the driving liquid in the vessel, for instance, through the agency of a piston surrounded by a sleeve in intimate engagement with the cylinder inner wall.
  • This arrangement has the advantage that, since the driving medium and active substance are separated from one another, any desired active substance can be used in its pure form and with its consistency unimpaired. Also, since the same quantity of driving medium is retained until all the active substance has been removed from the vessel, much less driving medium is needed than with the aerosol principle, which entails a continuous reduction in the quantity of driving medium as it issues with the active substance.
  • a great disadvantage of the piston arrangement is that the vessels must be completely cylindrical and free from all scams or bulges. Piston-type vessels are therefore,
  • the piston was replaced by a bag of rubber, plastic or other flexible substance, the base of the bag being adapted to move freely and the other and open end thereof. being clamped between the end face of the cylindrical Sincedented vessels cannot flexible tubes are introduced into and secured to the 2,978,144 Patented Apr. 4, 1961 the other and larger-volume chamber near the vessel closure means received the active substance.
  • the evaporating driving medium acts upon the pushed-over bag base and urges the active substance towards the closure means until the same are reclosed and the density by volume determined by the kind and quantity of driving medium and, by the room temperature is reattained.
  • a second flexible tube closed at one end is provided for the driving liquid, the open and closed ends of the second tube being secured to the vessel in the same way, but in inverted relation to the flexible tube containing the active substance, an open chamber being provided near the bottom end of the flexible tube for the active substance inside the .vessel, the last-mentioned open chamv, ber serving to receive that part of the second. flexible tube which contains the driving liquid.
  • FIG. 1 to 9 diagrammatically illustrate how the two vessel
  • Figures 10 to 12 illustrate a finished vessel and show how operations proceed therein when the closure means have been opened.
  • Figure l is a plan view of the hollow cylindrical body of a liquid vessel 1 without cover and base.
  • Figure 2 which is a sectional view taken through s am Initially, the tubes 2 and 3' extend on both sides of the cylindrical vessel 1 beyond the end faces.
  • the top end of the tube 2 is closed andbent around the top edge of the vessel wall outward- 1y, whereafter, as can be seen in Figure 4, the adjacent second tube 3,is opened wide at the top and stretched right around the topend edge of the cylinder 1, so that it acquires the shape shown in Figure 5 with a top circular aperture. That open part of the tube 3 which extends around the top end edge of the cylinder 1 also engages over the top end of the tube 2.
  • the flexible tube 3 which is intended to' receive the active substance in the embodiment illustrated, is pressed against the cylinder inner wall ( Figure 6) and urges the tube 2 in the flat state between the said inner wall and the tube 3, the inclined part of the former producing a space for the tube 2 at the bottom to receive the driving medium.
  • the tube 3, which is kept open at the top is closed only at the bottom (just like the tube 2, which is closed at the top) and bent aroundthe outside of the bottom end edge of the vessel Wall in order that this tube may be closed and secured by the subsequent fitting of the base ( Figure 7).
  • the free bottom end of the tube 2 is opened wide to form'a shallow bag (Figure 8) and stretched around the bottom end edge of the cylinder 1 ( Figure 9), just like the tube 3 was stretched around the top end edge; the open part of the tube 2 now surrounds the bottom end edge of the cylinder 1 and also engages over the bottom end of the tube 3.
  • a shallow bag is thus produced for the relativelysmall quantity of driving media.
  • a cover 4 ( Figure 10) having a closure means or valve or the like is fitted to the cylinder 1 and secured. This step also secures and seals in non-releasable manner the closed end of the tube 2 and the open end of the tube 3.
  • the vessel is then turned the other way round, the driving liquid is charged into the funnel-shaped space of the tube 2 and the base 5 ( Figure 10) is fitted and secured in sealingtight manner to the cylinder 1, so that the closed end of the tube 3 and the open end of the tube 2 are closed tight.
  • so much of the driving liquid evaporates at room temperature that the predetermined pressure is attained in the vessel, that is, the same has assumed the shape shown in Figure 10.
  • Figure 10 illustrates the vessel ready for dispatch. It has been charged with active substance W and driving medium T and fitted with a closed closure means 6. When the same is opened, the pressure produced by the evaporating driving medium urges the active substance out of the vessel. Because of the .manner in which the flexible tubing is secured, the driving gas is so deflected that the pressure can be applied only from the vessel base, the tube 2 therefore, gradually assumes the shape shown in Figure 11.
  • the final phase of operation is illustrated in Figure 12.
  • the driving medium has urged the two tubes fast against the vessel inner wall and thus the air is trapped which may be in the vessel but outside the tubing, at one end in the space L. This air assists operation to the extent that the remainder of the active substance is urged out of the vessel.
  • the tube 2 can be omitted and merely the tube 3 can be so secured to the base and cover that the expansion of the driving gas from the vessel base towardsthe exit aperture acts upon the active substance.
  • the tube. is secured in. the manner hereinbefore described. It then forms a bag which is wide open at the vessel cover and which extends right around the end edge of the cylinder 1.
  • the flexible tube thus folded in between the cylinder edge and the cover extends along the cylinder inner wall to the base, Where it is closed and, while in the closed state, bent aside outwardly and laid around the cylinder end edge. This closed tube end is also non-releasably folded in on the vessel base.
  • the tube is secured in this way, it cannot place itself before the exit aperture of the vessel or become so kinked that the active substance in the bag is prevented from issuing.
  • the pressure of the driving medium charged into the open chamber on the vessel base Will always take effect where both the active substance and also the tube ofier least resistance.
  • the tube securing arrangement according to the invention when the tube is full the resistance is greatest near the vessel cover, because of the tension of the tube, the resistance decreasing towards the vessel base. This ensures that the substance is urged uniformly out of the vessel without disturbance.
  • at least two flexible tubes will be provided in the vessel in the manner hereinbefore described.
  • the pressure vessel can of course be constructed in other ways. For instance, other means could be provided for securing the tubes to the vessels. For instance, instead of stretching the tubing around the outside of the cover edge, an internally fitted ring could be used.
  • the tubes might be produced with one end closed or with a special extension for clamping to the vessel.
  • the pressure vessel need not of course be cylindrical but is with advantage cylindrical or oval to ensure that space is used efiiciently, in which case the cylindrical base surface must form a circle, ellipse or other closed curve.
  • a self-emptying pressure vessel for active substances comprising a body, a cover provided with an exit aperture for the active substance, a base, the cover and the base being rigidly secured to said body at its upper and lower end respectively, a flexible tube adapted to receive the active substance, said tube having been widened as much as possible to adapt it to the inner diameter of the vessel and having one open end secured to that end of the vessel containing the exit aperture, the other end of the flexible tube being closed by being pressed flat in such a way that the one side thereof has a somewhat greater length than the opposite side and is secured at the opposite end of the body to the lower edge thereof, and a chamber provided inside the vessel body at the outside of the closed end of the flexible tube, and adapted to receive a driving liquid which evaporates at temperatures of 20-30" C.
  • a self-emptying pressure vessel for. active suba c .wmprising body, a .Y ..P 9. .ids4 went exit aperture for the active substance, a base, the cover and the base being rigidly secured to said body at its upper and lower end respectively, a flexible tube adapted to receive the active substance, said tube having been widened as much as possible to adapt it to the inner diameter of the vessel and having one open end secured to that end of the vessel containing the exit aperture, the other end of the flexible tube being closed by being pressed flat in such a way that the one side thereof has a somewhat greater length than the opposite side and is secured at the opposite end of the body to the lower edge thereof, and a second flexible tube having an open end and being closed at the other end and provided for the driving liquid which evaporates at temperatures of 20- 30 C., the open and closed ends of the second tube being secured to the vessel in inverted relation to the flexible tube containing the active substance so as to provide an open chamber near the bottom end of the flexible tube for the active substance inside
  • a pressure vessel according to claim 2 wherein both the closed ends of the flexible tubes and the open ends are secured to opposite end edges of the vessel body by being provided around or pushed over such edges and clamped between the said edges of the vessel body and the cover and the base respectively.
  • a pressure vessel according to claim 2 wherein the open end of one tube is pushed over the closed end of the other tube which is laid around the outside of the end edge of the vessel body, and is retained in position by bent over edges of the cover or the base and clamped between the said edges of the vessel body and the cover and the base respectively said tube ends also sealing the vessel in the regions where they are secured.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
US646486A 1956-03-19 1957-03-15 Self-emptying pressure vessels Expired - Lifetime US2978144A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER18538A DE1018358B (de) 1956-03-19 1956-03-19 Sich selbst entleerender Druckbehaelter fuer Wirkstoffe aller Art

Publications (1)

Publication Number Publication Date
US2978144A true US2978144A (en) 1961-04-04

Family

ID=7400238

Family Applications (1)

Application Number Title Priority Date Filing Date
US646486A Expired - Lifetime US2978144A (en) 1956-03-19 1957-03-15 Self-emptying pressure vessels

Country Status (7)

Country Link
US (1) US2978144A (show.php)
BE (1) BE555884A (show.php)
CH (1) CH350617A (show.php)
DE (1) DE1018358B (show.php)
FR (1) FR1173047A (show.php)
GB (1) GB827090A (show.php)
NL (1) NL98514C (show.php)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171571A (en) * 1963-03-08 1965-03-02 Bastian Blessing Co Beverage dispenser
DE1203667B (de) * 1964-06-06 1965-10-21 Willi Schultes Behaelter od. dgl. zur Aufnahme von Schuettguetern, Fluessigkeiten usw.
US3294289A (en) * 1965-01-27 1966-12-27 Schlitz Brewing Co J Dispensing unit
US3417901A (en) * 1967-07-06 1968-12-24 Charles L. Sands Reusable pressurized dispensing device
US3492945A (en) * 1968-09-27 1970-02-03 Special Devices Inc Practice grenade
FR2823146A1 (fr) * 2001-04-10 2002-10-11 Hilti Ag Cartouche sous pression
WO2004067963A1 (en) * 2003-01-31 2004-08-12 Reckitt Benckiser (Uk) Limited Pump

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075040B (de) 1960-02-04 Drzymalla Ludwigshafen/Rhem Wilhelm Druckbehälter mit fest eingesetztem tubenartigen Sack
US3109463A (en) * 1960-02-19 1963-11-05 Continental Oil Co Dispensing nozzle with grease fitting receiving means
DE1173011B (de) * 1960-06-06 1964-06-25 Colgate Palmolive Co Verfahren zum Fuellen und Verschliessen von unter Druck stehenden Behaeltern, die zwischen Fuellgut und Treibmittel eine Trennwand aufweisen
IL73814A (en) * 1984-02-09 1988-08-31 Grow Ventures Corp Plastic fluid dispensing container and its manufacture
FR2645245B1 (fr) * 1989-03-30 1992-09-18 Applic Gaz Sa Boite pour fluide sous pression
DE29816811U1 (de) 1998-09-21 1999-10-07 Wiedemann, Helmut, Dr.-Ing., 66280 Sulzbach System zur Speicherung von brennbaren Kraftgasen wie z.B. Erdgas und Wasserstoff in einem volumenveränderlichen Speicher zum Zwecke der Betankung von mobilen Behältern für Kraftfahrzeugantriebe
DE19916385C2 (de) * 1999-03-31 2001-02-08 Mannesmann Ag Fahrzeug mit Druckgasbehälter als Fahrzeugtank
DE10310947A1 (de) * 2003-03-11 2004-10-07 Schiefer, Hartmut, Prof. Dr.-Ing. Sprühvorrichtung

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1818707A (en) * 1929-05-16 1931-08-11 Nat Cantube Corp Inc Container
US2513455A (en) * 1946-02-11 1950-07-04 Richard T Cornelius Apparatus for discharging fluid at ambient temperature and a selected pressure, using a gas condensable at said temperature and pressure and acting on a flexible wall contacting said fluid
US2671578A (en) * 1950-06-20 1954-03-09 Douglas M Mcbean Pressure can having a flexible material holding bag therein
US2689065A (en) * 1950-01-30 1954-09-14 Charles D Schroeder Dispensing container having a flexible walled follower
US2736356A (en) * 1954-10-18 1956-02-28 Chance Vought Aircraft Inc Expellant bladder type fuel cell
US2766907A (en) * 1955-03-15 1956-10-16 Robbins Instr Corp Pressure infusion apparatus
US2815152A (en) * 1949-10-07 1957-12-03 Lindley E Mills Dispensing package and method
US2889078A (en) * 1955-12-16 1959-06-02 Colgate Palmolive Co Dispensing container for pressurepropelled products

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1046624A (fr) * 1951-06-19 1953-12-08 Perfectionnements apportés aux dispositifs d'éjection sous pression, notamment auxpulvérisateurs

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1818707A (en) * 1929-05-16 1931-08-11 Nat Cantube Corp Inc Container
US2513455A (en) * 1946-02-11 1950-07-04 Richard T Cornelius Apparatus for discharging fluid at ambient temperature and a selected pressure, using a gas condensable at said temperature and pressure and acting on a flexible wall contacting said fluid
US2815152A (en) * 1949-10-07 1957-12-03 Lindley E Mills Dispensing package and method
US2689065A (en) * 1950-01-30 1954-09-14 Charles D Schroeder Dispensing container having a flexible walled follower
US2671578A (en) * 1950-06-20 1954-03-09 Douglas M Mcbean Pressure can having a flexible material holding bag therein
US2736356A (en) * 1954-10-18 1956-02-28 Chance Vought Aircraft Inc Expellant bladder type fuel cell
US2766907A (en) * 1955-03-15 1956-10-16 Robbins Instr Corp Pressure infusion apparatus
US2889078A (en) * 1955-12-16 1959-06-02 Colgate Palmolive Co Dispensing container for pressurepropelled products

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171571A (en) * 1963-03-08 1965-03-02 Bastian Blessing Co Beverage dispenser
DE1203667B (de) * 1964-06-06 1965-10-21 Willi Schultes Behaelter od. dgl. zur Aufnahme von Schuettguetern, Fluessigkeiten usw.
US3294289A (en) * 1965-01-27 1966-12-27 Schlitz Brewing Co J Dispensing unit
US3417901A (en) * 1967-07-06 1968-12-24 Charles L. Sands Reusable pressurized dispensing device
US3492945A (en) * 1968-09-27 1970-02-03 Special Devices Inc Practice grenade
FR2823146A1 (fr) * 2001-04-10 2002-10-11 Hilti Ag Cartouche sous pression
WO2004067963A1 (en) * 2003-01-31 2004-08-12 Reckitt Benckiser (Uk) Limited Pump
US20060083632A1 (en) * 2003-01-31 2006-04-20 Reckitt Benckiser (Uk) Limited Pump
US8177102B2 (en) 2003-01-31 2012-05-15 Reckitt Benckiser (Uk) Limited Pump

Also Published As

Publication number Publication date
NL98514C (show.php) 1961-07-17
BE555884A (show.php) 1957-04-15
GB827090A (en) 1960-02-03
FR1173047A (fr) 1959-02-18
CH350617A (de) 1960-11-30
NL215474A (show.php) 1961-02-15
DE1018358B (de) 1957-10-24

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