US3001673A - Collapsible container provided with fluid-tight joint - Google Patents

Collapsible container provided with fluid-tight joint Download PDF

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Publication number
US3001673A
US3001673A US658042A US65804257A US3001673A US 3001673 A US3001673 A US 3001673A US 658042 A US658042 A US 658042A US 65804257 A US65804257 A US 65804257A US 3001673 A US3001673 A US 3001673A
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container
skirt
plug
bore
tube
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US658042A
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Frank E Brown
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Unette Corp
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Unette Corp
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/565—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits involving interference fits, e.g. force-fits or press-fits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12441—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12461—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being rounded, i.e. U-shaped or C-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • B29C66/43123—Closing the ends of squeeze tubes, e.g. for toothpaste or cosmetics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • 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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/02—Body construction
    • B65D35/10—Body construction made by uniting or interconnecting two or more components
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/12—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
    • B29C66/7314—Electrical and dielectric properties
    • B29C66/73143—Dielectric properties
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49945—Assembling or joining by driven force fit

Definitions

  • My invention relates to containing and dispensing uent materials, such as medicaments, lubricants and the like, and in particular provides a container-dispenser having a mechanical joint between a flexible tubular container member and a more rigid member, such vas an applicator.
  • collapsible containers Of the more desirable materials for forming collapsible containers are the well known copolymers of vinylidene chloride and vinyl chloride. These materials can be made tlexible and transparent and are relatively impermeable to most iiuent materials. When, however, it is desired to construct -a container which is ⁇ attached to an applicator for dispensing ya contained material, the applicator desirably is formed yas a separate part Since it must have greater thickness to impart a certain degree of rigidity.
  • the amount of material required in forming the applicator portion of a container-dispenser therefore, generally prohibits the use of vinylidene chloride-vinyl chloride copolymers, since the cost of such copolymers is relatively high as compared withmaterials, such as polyethylene. It is also relatively ditlcult to form particular shapes from the aforenoted copolymers and their desirable property of impermeability is not usually necessary in constructing the applicator portion of a container-dispenser.
  • Vinylidene chloride-vinyl chloride copolymers are not readily joined to materials such as polyethylene, since the two types of materials have dilerent fusing points and since most cements available for the purpose are generally soluble in the liquids which are typically to be contained and dispensed.
  • FIGURE 1 is a longitudinal section through a typical tube and applicator before assembly
  • FIGURE 2 is a view similar to FIGURE 1, showing the two parts positioned together prior to securing the mechanical joint between them;
  • FGURE 3 is a view similar to the preceding iigures, illustrating the mechanical seal between the members and a manner of filling the tubular member;
  • FIGURE 4 is a view similar to the preceding figures, illustrating sealing off the lled tubular container.
  • FIGURE 5 is an elevation of a completed container.
  • the reference numeral indicates a cut length of exible thin-walled tubular ma.erial, such as a vinylidene chloride-vinyl chloride copolymer
  • the reference numeral 11 indicates a relatively thick-walled elongated Iapplicator tube suitable for rectal insertion or the like.
  • applicator tube 11 which prefer- "ice ably is formed ofhigh-grade crystalline polyethylene, includes an elongated insertion tube 12 through which extends a narrow bore 13. At one end tube 12 is suitably stoppered by a plug 14, and at its other end tube 12 is :dared outwardly to forma shoulder 15. On the opposite side of shoulder 15, bore 13 is enlarged as indicated at 16 and is defined by the inner wall of a cylindrical skirt i7.
  • a second cylindrical skirt ⁇ 18 is coaxally positioned about and spaced outwardly from inner skirt 17 such that the outer wall of inner skirt 17 Vand the inner wall of outer skirt 18 define a cylindrical recess 1,9 in the end of applicator 11 remote from plug 14.
  • skirts 17 and 18 are arranged such that thin-walled tube 1li will pass freely into the recess 19.
  • the outside ⁇ diameter 4of inner skirt 17 is less than the inside diameter of tubular member 10, and the inside diameter of outside skirt 18 is greater than the outside diameter of tubular member 10.
  • tubular member 10 and applicator 11 are first positioned with one end 20 of tubular member 10 adjacent to recess 19 defined between skirts 17 and 18 of applicator 11.
  • plug 14 is emplaced in bore 13 ⁇ of insertion tube 12 (see FIGURE 1).
  • end 20 of tubular member 10 is inserte into recess 19.
  • a plug 21 of approximately oval longitudinal section and circular transverse section having a central longitudinal bore 22 is then inserted into the' enlarged bore portion 16 of applicator 11 in the following manner.
  • a thin tube 23 is first inserted into bore 22 of plug 21, frietionally holding plug 21 on the end of tube 23.v
  • a sleeve 24 is then passed over tube 23 with its end 25 abutting plug 21.
  • the assembly of plug 21, tube 23 and sleeve 24 are then inserted into the open end 26 of tubular member 1t) (see FIGURE 2).
  • plug 21 reaches bore portion 16, sleeve l24 is reciprocated downwardly on tube 23, forcing plug 21 into bore portion 16 Iand oi the end of tube 23.
  • transverse dimensions' of plug 21 near its center are substantially greater than the diameter of bore portion 16, that is, the inside diameter of inner skirt 17. 'Ihus when plug 21 is forced into bore portion 16, plug 21 deforms skirt 17 near its center, forcing it outwardly -a suicient amount to receive the end 20 of tubular member 10 in tight contact and to expand end 20 into contact with the inner face of outer skirt 18 deforming the center of outer skirt 18 slightly (see FiGURE 3). It will be ⁇ also noted that as so positioned, bore 22 of plug 21 registers with bore 13 of insertion tube 12, thus communicating the interior 27 of tubular member 10 with bore 13.
  • Construction of the container-dispenser is then completed by withdrawing sleeve 24 and tube 23 together and while doing so metering into space 27 the desired quantity of material to be contained through tube 23 (also see FIGURE 3). Thereafter, end 26 of tubular member 10 is closed between a pair of electrodes in a radio frequency welding circuit. Radio frequency energy is then applied to heat the dielectric material forming tubular member 10 and weld flattened end 26 closed (see FIG- URE 4).
  • the container-dispenser thus constructed (see FIG- URE 5) is of course employed by removing plug Y14, in! sorting tube 12 to a position to dispense the contents of the container where desired. rPhe side walls formed by tubular member .16 between sealed end 26 and applicator' ll-are then pressed together to eject the contents in space 27through bore 22 and bore 13.
  • a dispenser-container which includes -athin-,walled Y flexible tubular container body sealed at one end thereof and open at -the other end thereof, a relatively rigid discharge' member for said container having an open ended discharge passageway therethrough, Va irst cylindrical on said member surrounding ail-opening therein of said Ydischarge passageway, second cylindrical vskirt on said' open en'dof said container body, a vrzvlug-havingaV bore therethrough disposed inside said -rst skirt with said bore registering with said discharge passageway to communicate the interior of said container body with said passageway, said plug having a transverse dimension suv ciently great to maintain said first skirt deformed outwardly into contact with said open end ot said container body' to maintain said open end of said container body expanded into' contact with said second skirt.
  • a dispenser-container which includes ta thin-walled flexible tubular container body sealed at one end thereof andopen at the other end thereof, a relatively rigid elongated discharge member for said Vcontainer having a discharge passageway therethrough opening at each end of said member, -a irst cylindrical skirt on one end of said member surrounding the opening therein of said discharge passageway, a second cylindrical skirt on said one end of said member coaxiallyfpositioned about and spaced outwardly from said lirst skirt, said skirts dening between them a cylindrical recess in said one end of said member freely receiving said open end of said container body, an elongated plug having a bore formed lengthwise therescrollers through disposed inside said tirst skirt with said bore registering with said'discharge passageway to communicate the interior of said container body With said passageway, said plug having avtransverse dimension suiciently great to maintain said first deformed outwardly. into contact with said open end of said container body to maintain. said open end Ot said
  • a dispenser-container w ⁇ f ch includes a thin-walled iiexible tubular containerbody coutructedrof vinylidene chloride-vinyl chloride copolymer, said container body beingsealed at one end thereof and open aft'the other end thereof, la--relatvely rigid elongated dischargemember for said container constructed of crystalline polyethylene, said discharge memberhaving ja discharge passageway therethrough opening ateach end ⁇ of said member, a rstv cylindrical skirt on one end o-said member surrounding the opening thereinofsaid discharge passageway, a sec- 0nd cylindrical skirt on said vone end-of said member coaxially vpositioned about and spaced outwardly from sm'd ⁇ iirst skirt, saidskirts defining between thema cylindrical recess in said oneend of said member freely receiving said open end of said container body, an elongated plug having a bore formed lengthwise therethrough disposed inside said frst-

Description

Sept. 26, 1961 F. E. BROWN COLLAPSIBLE!l CONTAINER PROVIDED WITH FLUID-TIGHT JOINT Filed May 9, 1957 A #ma INVENTOR. Frank E.Brown I Mmyawa/m/MM@ ATTORNEYS United States Patent O COLLAPSIBLE CONTAIER PROVIDED WITH FLUID-TIGHT JOINT Frank E. Brown, Glendale, Calif., assignor to Unette Corporation, Burhank, Calif., a corporation of Delaware Filed May 9, 1957, Ser. No. 658,042 3 Claims. (Cl. 222-107) My invention relates to containing and dispensing uent materials, such as medicaments, lubricants and the like, and in particular provides a container-dispenser having a mechanical joint between a flexible tubular container member and a more rigid member, such vas an applicator.
Of the more desirable materials for forming collapsible containers are the well known copolymers of vinylidene chloride and vinyl chloride. These materials can be made tlexible and transparent and are relatively impermeable to most iiuent materials. When, however, it is desired to construct -a container which is `attached to an applicator for dispensing ya contained material, the applicator desirably is formed yas a separate part Since it must have greater thickness to impart a certain degree of rigidity. The amount of material required in forming the applicator portion of a container-dispenser, therefore, generally prohibits the use of vinylidene chloride-vinyl chloride copolymers, since the cost of such copolymers is relatively high as compared withmaterials, such as polyethylene. It is also relatively ditlcult to form particular shapes from the aforenoted copolymers and their desirable property of impermeability is not usually necessary in constructing the applicator portion of a container-dispenser.
Vinylidene chloride-vinyl chloride copolymers, however, are not readily joined to materials such as polyethylene, since the two types of materials have dilerent fusing points and since most cements available for the purpose are generally soluble in the liquids which are typically to be contained and dispensed.
It is accordingly an important object of my invention to provide a'uid-tigh-t mechanical seal which will securely hold a tubular body, such as a collapsible container, in a relatively more rigid member, such as an applicator for the container. Y
This and other objects of my invention are essentially obtained by providing the more rigid member at its end where it is to be joined to the tubular member with a cylindrical slot in the form of an annular space between a pair of cylindrical anges. The slot is sized freely to receive the tubular open end of a container and then the flanges are forced together tightly, receiving the tubular end of the container by inserting a plug inside the inner ange to deform it outwardly.
For -a more complete understanding of the principles of my invention, reference is made to the appended drawings in which:
FIGURE 1 is a longitudinal section through a typical tube and applicator before assembly;
FIGURE 2 is a view similar to FIGURE 1, showing the two parts positioned together prior to securing the mechanical joint between them;
FGURE 3 is a view similar to the preceding iigures, illustrating the mechanical seal between the members and a manner of filling the tubular member;
FIGURE 4 is a view similar to the preceding figures, illustrating sealing off the lled tubular container; and
FIGURE 5 is an elevation of a completed container.
Referring to the drawings, the reference numeral indicates a cut length of exible thin-walled tubular ma.erial, such as a vinylidene chloride-vinyl chloride copolymer, and the reference numeral 11 indicates a relatively thick-walled elongated Iapplicator tube suitable for rectal insertion or the like.
lt will be noted that applicator tube 11, which prefer- "ice ably is formed ofhigh-grade crystalline polyethylene, includes an elongated insertion tube 12 through which extends a narrow bore 13. At one end tube 12 is suitably stoppered by a plug 14, and at its other end tube 12 is :dared outwardly to forma shoulder 15. On the opposite side of shoulder 15, bore 13 is enlarged as indicated at 16 and is defined by the inner wall of a cylindrical skirt i7. A second cylindrical skirt `18 is coaxally positioned about and spaced outwardly from inner skirt 17 such that the outer wall of inner skirt 17 Vand the inner wall of outer skirt 18 define a cylindrical recess 1,9 in the end of applicator 11 remote from plug 14. The dimensions of skirts 17 and 18 are arranged such that thin-walled tube 1li will pass freely into the recess 19. Thus the outside `diameter 4of inner skirt 17 is less than the inside diameter of tubular member 10, and the inside diameter of outside skirt 18 is greater than the outside diameter of tubular member 10.
in order to fabricate a useful container-dispenser, the two pieces, tubular member 10 and applicator 11, are first positioned with one end 20 of tubular member 10 adjacent to recess 19 defined between skirts 17 and 18 of applicator 11. Suitably, plug 14 is emplaced in bore 13 `of insertion tube 12 (see FIGURE 1). Y
Thereafter, end 20 of tubular member 10 is inserte into recess 19. A plug 21 of approximately oval longitudinal section and circular transverse section having a central longitudinal bore 22 is then inserted into the' enlarged bore portion 16 of applicator 11 in the following manner.
A thin tube 23 is first inserted into bore 22 of plug 21, frietionally holding plug 21 on the end of tube 23.v A sleeve 24 is then passed over tube 23 with its end 25 abutting plug 21. The assembly of plug 21, tube 23 and sleeve 24 are then inserted into the open end 26 of tubular member 1t) (see FIGURE 2). As plug 21 reaches bore portion 16, sleeve l24 is reciprocated downwardly on tube 23, forcing plug 21 into bore portion 16 Iand oi the end of tube 23. f
It will be observed that the transverse dimensions' of plug 21 near its center are substantially greater than the diameter of bore portion 16, that is, the inside diameter of inner skirt 17. 'Ihus when plug 21 is forced into bore portion 16, plug 21 deforms skirt 17 near its center, forcing it outwardly -a suicient amount to receive the end 20 of tubular member 10 in tight contact and to expand end 20 into contact with the inner face of outer skirt 18 deforming the center of outer skirt 18 slightly (see FiGURE 3). It will be `also noted that as so positioned, bore 22 of plug 21 registers with bore 13 of insertion tube 12, thus communicating the interior 27 of tubular member 10 with bore 13.
The seal thus formed between applicator 11 and tubular member 10 is so secure that in typical construction the amount of force required to pull tubular member 10 out of engagement with lapplicator 11 exceeds the tensile strength of the material from which tubular member 10 is formed. Also, the distance along the inner faces between the interior 27 of tubular member 10 through the joint against which sealing pressure is applied by plug 21 is suiciently great to prevent vleakage of even the most surface-active of materials.
Construction of the container-dispenser is then completed by withdrawing sleeve 24 and tube 23 together and while doing so metering into space 27 the desired quantity of material to be contained through tube 23 (also see FIGURE 3). Thereafter, end 26 of tubular member 10 is closed between a pair of electrodes in a radio frequency welding circuit. Radio frequency energy is then applied to heat the dielectric material forming tubular member 10 and weld flattened end 26 closed (see FIG- URE 4).
The container-dispenser thus constructed (see FIG- URE 5) is of course employed by removing plug Y14, in! sorting tube 12 to a position to dispense the contents of the container where desired. rPhe side walls formed by tubular member .16 between sealed end 26 and applicator' ll-are then pressed together to eject the contents in space 27through bore 22 and bore 13.
Although I have described my invention with reference to avparticular container-dispenser construction, it will be evident Vthat the joint described will .be generally useful in secu-ring a relatively more rigid piece on the end of a tubular member for almost Iany Vpurpose where ow of a material is desired to pass through the sealed, joint.
- il.' A dispenser-container which includes -athin-,walled Y flexible tubular container body sealed at one end thereof and open at -the other end thereof, a relatively rigid discharge' member for said container having an open ended discharge passageway therethrough, Va irst cylindrical on said member surrounding ail-opening therein of said Ydischarge passageway, second cylindrical vskirt on said' open en'dof said container body, a vrzvlug-havingaV bore therethrough disposed inside said -rst skirt with said bore registering with said discharge passageway to communicate the interior of said container body with said passageway, said plug having a transverse dimension suv ciently great to maintain said first skirt deformed outwardly into contact with said open end ot said container body' to maintain said open end of said container body expanded into' contact with said second skirt.
Y2. A dispenser-container which includes ta thin-walled flexible tubular container body sealed at one end thereof andopen at the other end thereof, a relatively rigid elongated discharge member for said Vcontainer having a discharge passageway therethrough opening at each end of said member, -a irst cylindrical skirt on one end of said member surrounding the opening therein of said discharge passageway, a second cylindrical skirt on said one end of said member coaxiallyfpositioned about and spaced outwardly from said lirst skirt, said skirts dening between them a cylindrical recess in said one end of said member freely receiving said open end of said container body, an elongated plug having a bore formed lengthwise therescrollers through disposed inside said tirst skirt with said bore registering with said'discharge passageway to communicate the interior of said container body With said passageway, said plug having avtransverse dimension suiciently great to maintain said first deformed outwardly. into contact with said open end of said container body to maintain. said open end Ot said container body @Xpnded into contact with Said second Skirt.
3. A dispenser-container w` f ch includes a thin-walled iiexible tubular containerbody coutructedrof vinylidene chloride-vinyl chloride copolymer, said container body beingsealed at one end thereof and open aft'the other end thereof, la--relatvely rigid elongated dischargemember for said container constructed of crystalline polyethylene, said discharge memberhaving ja discharge passageway therethrough opening ateach end `of said member, a rstv cylindrical skirt on one end o-said member surrounding the opening thereinofsaid discharge passageway, a sec- 0nd cylindrical skirt on said vone end-of said member coaxially vpositioned about and spaced outwardly from sm'd `iirst skirt, saidskirts defining between thema cylindrical recess in said oneend of said member freely receiving said open end of said container body, an elongated plug having a bore formed lengthwise therethrough disposed inside said frst-skirt with said bore registering with said discharge passageway to communicate the interior of said -containerrbody with said passageway, said plug having Va transverse dimension suiciently great to maintain said rst skirt deformed outwardly into contact with said open end of said container body and to maintain said open end of'said container body expanded into contact with said secondskirt. v I
References Cited inthe tile of this patent UNITED STATES PATENTS Peach et al Oct. 2l, 1952
US658042A 1957-05-09 1957-05-09 Collapsible container provided with fluid-tight joint Expired - Lifetime US3001673A (en)

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Cited By (11)

* 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
US3221939A (en) * 1962-01-08 1965-12-07 Barnes Hind International Inc Disposable dispensers
US3224795A (en) * 1962-09-27 1965-12-21 Conley Corp Flanged fitting with a reinforcing sleeve
US3255925A (en) * 1964-02-03 1966-06-14 Robert H Park Closure for plastic containers
US3417899A (en) * 1967-05-09 1968-12-24 Unette Corp Tube closure
US3439944A (en) * 1965-07-16 1969-04-22 Bernhard Leutenegger Nipple for pipe joints
US3465917A (en) * 1966-06-29 1969-09-09 Taisei Kako Co Method for the production of plastic tubes
US3759553A (en) * 1971-04-21 1973-09-18 Hepworth Plastics Ltd Pipe couplings
EP0786324A1 (en) 1996-01-24 1997-07-30 B. Braun Melsungen Ag Method of connecting a medical tube to a plastic adapter
US20030102671A1 (en) * 2001-12-05 2003-06-05 Karl Fritze Plastic tube joint
US20140373974A1 (en) * 2013-06-24 2014-12-25 Brandon Ragan Pouch-type Sealant Injector

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Publication number Priority date Publication date Assignee Title
US560984A (en) * 1896-05-26 Elastic bottle
US1185215A (en) * 1915-03-17 1916-05-30 John Lezzeni Hose-coupling.
US1977917A (en) * 1932-05-09 1934-10-23 Carl A Norgren Hose coupling
US2071478A (en) * 1936-07-11 1937-02-23 Ross H Wick Hose coupling
US2072366A (en) * 1933-08-14 1937-03-02 George N Hein Reflex bulb syringe
US2258919A (en) * 1937-07-02 1941-10-14 Archibald L Wallace Means for applying hose couplings
US2374225A (en) * 1941-10-04 1945-04-24 Bowden Eng Ltd Flexible hose coupling
US2614827A (en) * 1946-01-04 1952-10-21 Clayton Mark & Co Tubular joint

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US560984A (en) * 1896-05-26 Elastic bottle
US1185215A (en) * 1915-03-17 1916-05-30 John Lezzeni Hose-coupling.
US1977917A (en) * 1932-05-09 1934-10-23 Carl A Norgren Hose coupling
US2072366A (en) * 1933-08-14 1937-03-02 George N Hein Reflex bulb syringe
US2071478A (en) * 1936-07-11 1937-02-23 Ross H Wick Hose coupling
US2258919A (en) * 1937-07-02 1941-10-14 Archibald L Wallace Means for applying hose couplings
US2374225A (en) * 1941-10-04 1945-04-24 Bowden Eng Ltd Flexible hose coupling
US2614827A (en) * 1946-01-04 1952-10-21 Clayton Mark & Co Tubular joint

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3221939A (en) * 1962-01-08 1965-12-07 Barnes Hind International Inc Disposable dispensers
US3224795A (en) * 1962-09-27 1965-12-21 Conley Corp Flanged fitting with a reinforcing sleeve
US3171571A (en) * 1963-03-08 1965-03-02 Bastian Blessing Co Beverage dispenser
US3255925A (en) * 1964-02-03 1966-06-14 Robert H Park Closure for plastic containers
US3439944A (en) * 1965-07-16 1969-04-22 Bernhard Leutenegger Nipple for pipe joints
US3465917A (en) * 1966-06-29 1969-09-09 Taisei Kako Co Method for the production of plastic tubes
US3417899A (en) * 1967-05-09 1968-12-24 Unette Corp Tube closure
US3759553A (en) * 1971-04-21 1973-09-18 Hepworth Plastics Ltd Pipe couplings
EP0786324A1 (en) 1996-01-24 1997-07-30 B. Braun Melsungen Ag Method of connecting a medical tube to a plastic adapter
US20030102671A1 (en) * 2001-12-05 2003-06-05 Karl Fritze Plastic tube joint
US6857670B2 (en) * 2001-12-05 2005-02-22 Cuno Incorporated Plastic tube joint
US20140373974A1 (en) * 2013-06-24 2014-12-25 Brandon Ragan Pouch-type Sealant Injector

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