EP0510853A2 - Système de revêtement pour réservoir avec col scellé - Google Patents

Système de revêtement pour réservoir avec col scellé Download PDF

Info

Publication number
EP0510853A2
EP0510853A2 EP92303278A EP92303278A EP0510853A2 EP 0510853 A2 EP0510853 A2 EP 0510853A2 EP 92303278 A EP92303278 A EP 92303278A EP 92303278 A EP92303278 A EP 92303278A EP 0510853 A2 EP0510853 A2 EP 0510853A2
Authority
EP
European Patent Office
Prior art keywords
collar
tank
opening
wall
collars
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.)
Granted
Application number
EP92303278A
Other languages
German (de)
English (en)
Other versions
EP0510853B1 (fr
EP0510853A3 (en
Inventor
Ronald M. Matyja
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.)
Culligan International Co
Original Assignee
Culligan International Co
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 Culligan International Co filed Critical Culligan International Co
Publication of EP0510853A2 publication Critical patent/EP0510853A2/fr
Publication of EP0510853A3 publication Critical patent/EP0510853A3/en
Application granted granted Critical
Publication of EP0510853B1 publication Critical patent/EP0510853B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/02—Wall construction
    • B65D90/04—Linings
    • B65D90/046—Flexible liners, e.g. loosely positioned in the container

Definitions

  • Various water tanks and the like are desirably lined with a flexible plastic barrier to prevent corrosion of the tank, or the leaching of undesirable substances. This is especially the case when the tank body is made of steel which, apart from the corrosion problem, can exhibit significant advantages over other materials.
  • a system for connecting a plastic tank lining to a penetration fitting which forms an opening through a tank wall.
  • an improved structure for a tank lining system is provided which is easier to assemble, and which provides an air and water tight seal between the liner and the tank without the use of sealants or direct compression gaskets.
  • a direct compression gasket is a gasket which is under constant compression.
  • a disadvantage of such a gasket is that, over a period of time it can take a compression set due to the constant pressure and can lose effectiveness.
  • the Culligan International Company has sold a tank lining system where a yoke is required. By this invention such a yoke is eliminated.
  • a tank lining system comprises a tank having a wall defining a first opening.
  • a flexible sheet lining abuts the interior surface of the wall and defines a second opening that is aligned with the first opening of the tank wall.
  • a first collar surrounds the first opening, the first collar being attached to the tank, typically by welding when the tank is metal and the first collar is made of a metal which is compatible to the metal of the tank.
  • both the tank and the first collar may be made of steel.
  • a second collar surrounds the second opening, and is attached by an appropriate sealing to the flexible sheet, for example radio frequency (RF) heat sealing, solvent welding, spin welding, ultrasonic welding, contact heating, or any other desired process.
  • RF radio frequency
  • the flexible sheet may be made of vinyl plastic or polyurethane sheeting, with the second collar being made of a corresponding, but typically rigid, plastic which is sealingly compatible with the plastic of the sheet.
  • Means are provided for retaining the first and second collars together, while providing a seal of the junction area that is defined between them.
  • the first and second collars carry an O-ring between them for sealing the junction area, with the O-ring comprising a seal of the non-direct compression type, as is the case with respect to O-rings, for an improved lifetime of the seal.
  • the second collar is surrounded by the first collar in retained-together relation.
  • This retained-together relation can be accomplished simply by attaching with bolts if desired.
  • the first collar may define spaced, inwardly projecting first locking flange means, while the second collar defines spaced, outwardly projecting second locking flange means which are proportioned to pass axially through and to rotationally interlock with the first locking flange means.
  • relative rotation of the first and second collars with their respective locking flange means positioned for interlocking can cause the two collars to enter into rotationally interlocking relation with each other through the respective locking flanges, to cause axial locking together.
  • nut means threadedly connected to the second collar and abutting the first collar to force, upon rotation of the nut means, the first and second locking flange means into axially loaded relation together.
  • a steel water tank 10 comprising a tank wall 12, to which there is attached a steel first collar 14 which defines a first opening 16.
  • First collar 14 is welded by annular weld line 18 to the remainder of tank wall 12.
  • Tank 10 carries an inner plastic liner 20 made of polyvinyl chloride plastic or the like. At the upper end of said plastic liner 20 there is an aperture 21, with an annular section 22 of plastic liner 20 being firmly sealed to second collar 24 by R.F. sealing or the like. Second collar 24 may be made of rigid polyvinyl chloride, as is desirable in such a circumstance to promote sealing compatibility. Second collar 24 fits within first collar 14 in telescoping relation so that a portion of second collar 24 is surrounded by first collar 14.
  • Second collar 24 defines, in this embodiment, three outwardly projecting locking flanges 26. As shown in Fig. 2, locking flanges 26 are spaced from each other by spaces that are of typically slightly larger circumferential angle than the circumferential angle of each locking flange 26.
  • First collar 14 in turn, defines three inwardly projecting, spaced locking flanges 28.
  • Each of the locking flanges 26, 28 are proportioned and spaced so that they can fit between each other, as particularly shown in Fig. 2, when the first and second collars 14, 24 are moved axially with respect to each other.
  • the respective collars can be placed into a position as illustrated in Fig. 1 and also Fig. 3 by passing through the configuration of Fig. 2, and then relatively rotating first and second collars 14, 24 to the position of Figs. 1 and 3 where the respective locking flanges 26, 28 are placed in rotationally interlocking relation, to retain the respective collars 14, 24 together in axially locked relation.
  • Second collar 24 also defines an annular, outwardly projecting flange 30, which carries an O-ring 32.
  • O-ring 32 the junction area between the respective collars 14, 24 may be sealed by the presence of O-ring 32.
  • O-ring 32 may be inserted, to prevent migration of air back into the junction area between wall 12 and liner 20.
  • threaded nut 34 may be applied to external threads 36 of collar 24.
  • the nut member is rotated downwardly until its flange 38 abuts an annular shoulder 40 of first collar 14, generating upward pressure on second collar 24 relative to first collar 14. This causes a load to be developed between the respective locking flanges 26, 28 for improved sealing and retention of the system.
  • Nut 34 may abut the shoulder 40 of first collar 14 through a shroud or cover 42, which may be made of sheet steel or the like, to protect the upper portion of the tank, as shown in Fig. 1.
  • Shroud 42 also carries a lower annular seal member 44, which seals against the tank wall 12.
  • the tank lining system of this invention is provided with relatively simple construction, with the flexible tank liner carrying second collar 24 in sealed relation, so that the respective first and second collars are easily locked together and sealed without the complexities required in the prior art.
  • Second collar 24 also defines internal threads 46 in aperture 21, for attachment to a conventional adaptor.
  • one or more ports 46 may be formed in the wall 12 of the tank, to facilitate the bleeding of air bubbles from between the respective members 12, 20. Then, when the process is finished, port or ports 46 may be closed with a sealant or the like, as shown in Fig. 1. This may be used in conjunction with draining air through the junction area between first and second collars 14, 24, or it may be used as a substitute for that technique.
  • Water tank 10a comprises a wall 12a as in the previous embodiment, with wall 12a carrying a first collar 14a in welded relation about a first opening, as in the previous embodiment.
  • the tank contains a flexible liner 20a which is bonded to a generally plastic second collar 24a in a manner similar to the previous embodiment by any desired bonding means such as R.F. heat sealing, or any other desired process.
  • the respective collars occupy a relation where the second collar 24a has a portion 43 which is surrounded by first collar 14a, but also, second collar 24a defines a collar section 50 which overlies first collar 14a in the manner shown. Collar section 50 and first collar 14a define apertures which receive retention bolts 52, to tightly secure the two collars 14a, 24a together.
  • An O-ring 54 may be provided to seal the junction area between the two collars 14a, 24a.
  • threads 46a are provided in an upper aperture 12a of the tank to facilitate the bleeding of air from the space between the tank wall 12 and flexible inner liner 20a, this being accomplished by pressurizing the interior of inner liner 20a by either compressed air or filling the tank with liquid. Then, apertures 46a may be closed up with sealant as shown, so that air cannot return to the junction between wall 12a and inner liner 20a.
  • second collar 24a defines an internally threaded aperture 46a for receiving a conventional connector or adaptor for the tank.
  • a threaded nut 56 may be provided in threaded relation with an externally threaded portion of second collar 24a to hold sheet metal shroud 58 onto the top of the tank.
  • Shroud 58 provides external protection and provides the system with an aesthetic look.
  • a simplified tank liner system which is easier to install and which exhibits excellent durability and useful life.
  • the flexible liner 20 or 20a is simply inserted into the mouth of the tank. The respective collars are secured together.
  • the tank system is pressurized, or filled with water, to force the liner into intimate relation with the tank wall, and the system can be closed up and ready for years of useful life.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Moulding By Coating Moulds (AREA)
  • Packages (AREA)
  • Coating Apparatus (AREA)
EP92303278A 1991-04-25 1992-04-13 Système de revêtement pour réservoir avec col scellé Expired - Lifetime EP0510853B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US69156491A 1991-04-25 1991-04-25
US691564 1991-04-25

Publications (3)

Publication Number Publication Date
EP0510853A2 true EP0510853A2 (fr) 1992-10-28
EP0510853A3 EP0510853A3 (en) 1993-02-03
EP0510853B1 EP0510853B1 (fr) 1994-11-02

Family

ID=24777041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92303278A Expired - Lifetime EP0510853B1 (fr) 1991-04-25 1992-04-13 Système de revêtement pour réservoir avec col scellé

Country Status (6)

Country Link
EP (1) EP0510853B1 (fr)
AT (1) ATE113558T1 (fr)
AU (1) AU652240B2 (fr)
CA (1) CA2065757C (fr)
DE (1) DE69200606T2 (fr)
ES (1) ES2066558T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4418715A1 (de) * 1993-06-03 1994-12-08 Duttenhoefer Gmbh Gottlieb Verpackungsverschluß einer mehrfach kombinierbaren Gefahrgutverpackung
WO2001079082A3 (fr) * 2000-04-18 2002-03-07 United States Filter Corp Reservoir de traitement a ouverture centrale pour brides de reservoir metalliques

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE717476A (fr) * 1959-12-11 1968-12-16
US3918605A (en) * 1974-04-15 1975-11-11 Calvin J Butler Combination container with disposable closure and linear assembly
NL7501558A (en) * 1975-02-10 1976-08-12 Dow Chemical Nederland Transportation of liquid materials in road tankers - containing transporting bag used once as inner coating of tank
US4537329A (en) * 1984-04-02 1985-08-27 Culligan International Company Tank lining system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1000634A (en) * 1962-11-15 1965-08-11 Leer Ind Ltd Van Container for the packaging, the storage and the transportation of goods
US4164304A (en) * 1978-05-30 1979-08-14 The Continental Group, Inc. Closure for steel drums with blow molded liners

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE717476A (fr) * 1959-12-11 1968-12-16
US3918605A (en) * 1974-04-15 1975-11-11 Calvin J Butler Combination container with disposable closure and linear assembly
NL7501558A (en) * 1975-02-10 1976-08-12 Dow Chemical Nederland Transportation of liquid materials in road tankers - containing transporting bag used once as inner coating of tank
US4537329A (en) * 1984-04-02 1985-08-27 Culligan International Company Tank lining system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4418715A1 (de) * 1993-06-03 1994-12-08 Duttenhoefer Gmbh Gottlieb Verpackungsverschluß einer mehrfach kombinierbaren Gefahrgutverpackung
WO2001079082A3 (fr) * 2000-04-18 2002-03-07 United States Filter Corp Reservoir de traitement a ouverture centrale pour brides de reservoir metalliques

Also Published As

Publication number Publication date
CA2065757A1 (fr) 1992-10-26
AU652240B2 (en) 1994-08-18
EP0510853B1 (fr) 1994-11-02
EP0510853A3 (en) 1993-02-03
ATE113558T1 (de) 1994-11-15
AU1512792A (en) 1992-10-29
ES2066558T3 (es) 1995-03-01
CA2065757C (fr) 1996-04-02
DE69200606T2 (de) 1995-05-04
DE69200606D1 (de) 1994-12-08

Similar Documents

Publication Publication Date Title
US5345666A (en) Method of sealing a tank having a flexible sheet liner therein
US5174466A (en) Tank lining system with neck seal
US5551590A (en) Non-metallic pressure vessel fitting
US5271518A (en) Sump cover
US5944319A (en) Method of forming a metal to metal seal between two confronting faces of pressure containing bodies and a metal to metal seal
US4653663A (en) Clamping assembly for securing a flexible liner to a storage tank, and method therefor
US5305903A (en) Device in fuel tanks
EP0239407A2 (fr) Récipient sous pression en matériau composite avec un orifice à fluide comportant un joint d'étanchéité remplaçable situé dans la paroi latérale de la structure en matériau composite et procédé de fabrication d'un tel orifice à fluide
US3774802A (en) Attachment apparatus for pressure vessels
RU2134835C1 (ru) Способ герметизации места утечки в содержащем текучую среду теле, средство и накладка для герметизации места утечки и аппликатор для крепления накладки
EP0485076B1 (fr) Garniture
US5113912A (en) Inflatable cushion for sealing off leaks in containers and pipes
CA2065757C (fr) Revetement interieur pour reservoir avec joint de scellement pour cols
EP0716233B1 (fr) Réservoir en matière plastique
US4601494A (en) Nipple insert
US3178050A (en) Connections between rigid and flexible bodies
US4317472A (en) Replaceable bladder accumulator device
US5104273A (en) Wall anchor socket apparatus
JP2023118739A (ja) 水がベイスン（ｂａｓｉｎ）に入らないようにするためのチューブ
US20040200842A1 (en) Containment system for storage systems having discontinuities
US5501243A (en) Liquid storage tank sump
RU2020129C1 (ru) Емкость для текучих веществ
US4850619A (en) Hose connecting system and method for providing the hoses with connections
US4222804A (en) Method of joining together the sections of large-diameter fiberglass-reinforced tanks
CN209651888U (zh) 双层卸油手孔井

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI NL PT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI NL PT SE

17P Request for examination filed

Effective date: 19930402

17Q First examination report despatched

Effective date: 19930816

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19941102

Ref country code: DK

Effective date: 19941102

Ref country code: AT

Effective date: 19941102

REF Corresponds to:

Ref document number: 113558

Country of ref document: AT

Date of ref document: 19941115

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: JACOBACCI CASETTA & PERANI S.P.A.

REF Corresponds to:

Ref document number: 69200606

Country of ref document: DE

Date of ref document: 19941208

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19950202

ET Fr: translation filed
REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3014242

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2066558

Country of ref document: ES

Kind code of ref document: T3

SC4A Pt: translation is available

Free format text: 941102 AVAILABILITY OF NATIONAL TRANSLATION

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20040407

Year of fee payment: 13

Ref country code: GB

Payment date: 20040407

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20040420

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20040423

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20040427

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20040510

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20040528

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040601

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050413

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050413

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050414

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050430

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051013

BERE Be: lapsed

Owner name: *CULLIGAN INTERNATIONAL CY

Effective date: 20050430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051103

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20050413

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051230

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20051230

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20050414

BERE Be: lapsed

Owner name: *CULLIGAN INTERNATIONAL CY

Effective date: 20050430