US1847245A - Container closure - Google Patents

Container closure Download PDF

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Publication number
US1847245A
US1847245A US489528A US48952830A US1847245A US 1847245 A US1847245 A US 1847245A US 489528 A US489528 A US 489528A US 48952830 A US48952830 A US 48952830A US 1847245 A US1847245 A US 1847245A
Authority
US
United States
Prior art keywords
friction
plug
ring
container
closure
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
US489528A
Inventor
John M Hothersall
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.)
Primerica Inc
Original Assignee
American Can 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 American Can Co filed Critical American Can Co
Priority to US489528A priority Critical patent/US1847245A/en
Application granted granted Critical
Publication of US1847245A publication Critical patent/US1847245A/en
Anticipated expiration legal-status Critical
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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0214—Removable lids or covers without integral tamper element secured only by friction or gravity
    • B65D43/0216—Removable lids or covers without integral tamper element secured only by friction or gravity inside a peripheral U-shaped channel in the mouth of the container
    • 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
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/32—Clamping or other pressure-applying devices for securing or retaining closure members for applying radial or radial and axial pressure, e.g. contractible bands encircling closure member
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/00074—Shape of the outer periphery curved
    • B65D2543/00092—Shape of the outer periphery curved circular
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00277—Metal
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00435—Lids secured to an intermediate ring or like annular member fixed to the container mouth
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00453—Contact between the container and the lid in a peripheral U-shaped channel of the container
    • B65D2543/00462—Contact between the container and the lid in a peripheral U-shaped channel of the container peripheral U-shaped channel of the lid
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00509—Cup
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • B65D2543/00546—NO contact
    • 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
    • Y10T292/00—Closure fasteners
    • Y10T292/20—Clamps
    • Y10T292/205—Ring
    • Y10T292/207—Permanently deformed

Definitions

  • This invention relates in general to containers and more particularly to an improved and novel auxiliary closure construction for friction top containers for paint and other materials.
  • a principal object of my invention is the provision of an auxiliary closure for a friction top container which is adapted to meet the most stringent tests and requirements of the post office authorities.
  • Another important object of my invention is the provision of improved means for securing a friction plug'in place upon a filled friction top container to effectively insure against loosening of the plug inshipment and handling.
  • Still another important object of my invention is the provision of such an auxiliary closure which will be inexpensive to manu facture, easy to apply by the packer and easy to remove by the ultimate consumer.
  • Figure 1 is a perspective View of a preferred embodiment of theinvention
  • Fig. 2 is an enlarged detail cross sectional view showing the container, friction closure and auxiliary closure in fully assembled relationship
  • Fig. 3 is a fragmentary perspective view of the container of Fig. 1, showing the auxiliary closure in partially removed condition.
  • the material of the friction ring 14, inwardly of the double seam 13, is bent downwardly parallel with the wall of the body l1, to form a vertical wall part 15, thence inwardly or horizontally at right angles to the part 15 to form an annular horizontal ledge or shoulder 16, thence downwardly, inwardly and upwardly to form a.
  • the friction wall 19 extends upwardly beyond the plane of the horizontal shoulder 16 and terminates in an annular open bead or curl 21, which defines a central filling and dispensing opening in thetop of the container.
  • This filling opening is closed by means of the conventional type of friction plug or closure 20, which, in the preferred form illustrated, comprises, a flat central panel 22 substantially on a level with the horizontal plane of the rounded shoulder or top edge 23 formed by the double. seam 13, an annular rounded channel part 2-1, a rounded shoulder part 25,
  • a U- shaped channel 26 having two friction seat walls 27 and 28 corresponding with and adapted to make tight frictional contact with the friction walls 18 and 19 of the friction ring 14.
  • the outer margin of the friction plug is bent outwardly, downwardly and inwardly to form an openbead or curl 29 havinga rounded top or shoulder 31.
  • this friction plug when driven home into the friction ring provides a very tight closure which is not easily dislodged.
  • paints which are of a heavy liquid consistency, by continuous pounding against the inner side of the plug during the motions caused by shipment sometimes manage to loosen the plug so that the paint leaks out over other articles of shipment. In or der to prevent this undesirable result and to keep the frictionplug in tight sealing engagement at all times, I have provided an additional sealing band or ring 32.
  • This sealing band or ring 32 is preferably stamped or otherwise prepared, substantially in the form shown in Fig. 2, from a flat strip of sheet metal in any well known and suitable manner. It comprises, an inner round-v ed marginal part 33 which is adapted to tightly fit over the shoulder 31 of the friction plug bead 29, a rounded channel part 34, tightly bearing upon the horizontal sl1oul der 16 of the friction ring 14, a substantially vertical annular wall part 35, parallel with and tightly hugging the wall'15 of the friction ring, a rounded top shoulder 36, adapted to overlie the shoulder 23 of the double seam 13, and a depending annular skirt 37, adapted to be crimped against the outer periphery of and under the double seam 13, by means of any ordinary or preferred crlmplng tool.
  • the ends of the sealing ring strip are overlapped at 38 and the outer overlapping end has a tongue extension 39 depending downwardly from the skirt 37 and provided with a perforation 40 to facilitate easy engagement of the tongue by a pry ofi tool.
  • a friction top container a container body, a friction ring secured thereto by a double seam and adapted to provide a filling and dispensing opening, a friction plug adapted to seal said opening, and an auxiliary sealing means arrangeable over said plug and said seam and adapted to securely hold said plug in tight sealing engagement.
  • a friction top container a container opening. a friction plug adapted to seal said opening, and an auxiliary sealing means arbody having a flange, a friction ring having a flange interlocked with said body flange to form a double seam, and providing a filling and dispensing opening, a friction plug adapted to frictionally engage said ring to close said opening, and a sealing ring arrangeable over said plug and double seam to securely hold said plug in tight sealing engagement.
  • a container body having a flange, a friction ring having a flange interlocked with said body flange to form a double seam, and providing a filling and dispensing opening, a friction plug adapted to frictionally engage said ring to close said opening, and a sealing ring with overlapped ends crimped over said plug and double seam to securely hold said plug in tight sealing engagement.
  • a container body having a flange, a friction ring having a flange interlocked with said body flan go to form a double seam, and providing a filling and dispensing opening, a friction plug adapted to frictionally engage said ring to close said opening, and a sealing ring with overlapped ends crimped over said plug and double seam to securely hold said plug in tight sealing engagement, said sealing ring having a tongue to facilitate removal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Description

March 1, 1932,. J. M. HOTHERSALL C'ONTAINER CLOSURE Filed Oct. 18, 1930 INVENT BY A4 ATTO NEY Fatented Mar. 1, 1932 marten STATES PATENT OFFICE JOHN M. HOTHMSALL, OF BROOKLYN, NEW YORK ASSIGNOR- T0 AMERICAN CAN COM- PANY, OF NEW YORK, N. Y., A CORIPOIRAIION OF NEVT JERSEY CONTAINER CLOSURE Application filed October 18, 1930. Serial No. 489,528
This invention relates in general to containers and more particularly to an improved and novel auxiliary closure construction for friction top containers for paint and other materials.
In the shipment of friction top paint containers through the mails trouble has frequently been encountered in the past in that the friction plugs have leaked in transit and caused damage to other articles shipped through the mails. The Post Office Department has therefore established certain rules and specifications which require that the mere frictional engagement between container body and friction plug be augmented by auxiliary closure means which will insure against damage to other parcels.
A principal object of my invention is the provision of an auxiliary closure for a friction top container which is adapted to meet the most stringent tests and requirements of the post office authorities.
Another important object of my invention is the provision of improved means for securing a friction plug'in place upon a filled friction top container to effectively insure against loosening of the plug inshipment and handling.
Still another important object of my invention is the provision of such an auxiliary closure which will be inexpensive to manu facture, easy to apply by the packer and easy to remove by the ultimate consumer.
Numerous other objects of the invention will be apparent as it is better understood from the following description, which, taken in connection with the accompanying drawirgs, discloses a preferred embodiment there- 0 Referring to the drawings: V.
Figure 1 is a perspective View of a preferred embodiment of theinvention;
Fig. 2 is an enlarged detail cross sectional view showing the container, friction closure and auxiliary closure in fully assembled relationship; and
Fig. 3 is a fragmentary perspective view of the container of Fig. 1, showing the auxiliary closure in partially removed condition.
In the preferred embodiment of my inven ed in a well known double seam 13 with a corresponding flange on the top end or friction ring 14:.
The material of the friction ring 14, inwardly of the double seam 13, is bent downwardly parallel with the wall of the body l1, to form a vertical wall part 15, thence inwardly or horizontally at right angles to the part 15 to form an annular horizontal ledge or shoulder 16, thence downwardly, inwardly and upwardly to form a. substantially U- shapedfriction channel 17, having vertical parallel friction plug engaging walls 18 and 19. 7
The friction wall 19 extends upwardly beyond the plane of the horizontal shoulder 16 and terminates in an annular open bead or curl 21, which defines a central filling and dispensing opening in thetop of the container.
This filling opening is closed by means of the conventional type of friction plug or closure 20, which, in the preferred form illustrated, comprises, a flat central panel 22 substantially on a level with the horizontal plane of the rounded shoulder or top edge 23 formed by the double. seam 13, an annular rounded channel part 2-1, a rounded shoulder part 25,
adapted to snugly fit over the bead 21, a U- shaped channel 26 having two friction seat walls 27 and 28 corresponding with and adapted to make tight frictional contact with the friction walls 18 and 19 of the friction ring 14. The outer margin of the friction plug is bent outwardly, downwardly and inwardly to form an openbead or curl 29 havinga rounded top or shoulder 31.
Ordinarily, this friction plug when driven home into the friction ring provides a very tight closure which is not easily dislodged. However, paints, which are of a heavy liquid consistency, by continuous pounding against the inner side of the plug during the motions caused by shipment sometimes manage to loosen the plug so that the paint leaks out over other articles of shipment. In or der to prevent this undesirable result and to keep the frictionplug in tight sealing engagement at all times, I have provided an additional sealing band or ring 32.
This sealing band or ring 32 is preferably stamped or otherwise prepared, substantially in the form shown in Fig. 2, from a flat strip of sheet metal in any well known and suitable manner. It comprises, an inner round-v ed marginal part 33 which is adapted to tightly fit over the shoulder 31 of the friction plug bead 29, a rounded channel part 34, tightly bearing upon the horizontal sl1oul der 16 of the friction ring 14, a substantially vertical annular wall part 35, parallel with and tightly hugging the wall'15 of the friction ring, a rounded top shoulder 36, adapted to overlie the shoulder 23 of the double seam 13, and a depending annular skirt 37, adapted to be crimped against the outer periphery of and under the double seam 13, by means of any ordinary or preferred crlmplng tool. The ends of the sealing ring strip are overlapped at 38 and the outer overlapping end has a tongue extension 39 depending downwardly from the skirt 37 and provided with a perforation 40 to facilitate easy engagement of the tongue by a pry ofi tool.
It will be readily seen that this arrangement of the sealing ring 32 over and around the double seam 13 and over thebead 29 of the friction plug 20 will hold the friction plug securely in place even under the most severe strains incidental to the handling and shipping.
It is thought that the invention and many of its attendant advantages will be understood from the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the form hereinbcfore described being merely a preferred embodiment thereof.
I claim:
1. In a friction top container, a container body, a friction ring secured thereto by a double seam and adapted to provide a filling and dispensing opening, a friction plug adapted to seal said opening, and an auxiliary sealing means arrangeable over said plug and said seam and adapted to securely hold said plug in tight sealing engagement.
2. In a friction top container, a container opening. a friction plug adapted to seal said opening, and an auxiliary sealing means arbody having a flange, a friction ring having a flange interlocked with said body flange to form a double seam, and providing a filling and dispensing opening, a friction plug adapted to frictionally engage said ring to close said opening, and a sealing ring arrangeable over said plug and double seam to securely hold said plug in tight sealing engagement.
4. In a friction top container, a container body having a flange, a friction ring having a flange interlocked with said body flange to form a double seam, and providing a filling and dispensing opening, a friction plug adapted to frictionally engage said ring to close said opening, and a sealing ring with overlapped ends crimped over said plug and double seam to securely hold said plug in tight sealing engagement.
5. In a friction top container, a container body having a flange, a friction ring having a flange interlocked with said body flan go to form a double seam, and providing a filling and dispensing opening, a friction plug adapted to frictionally engage said ring to close said opening, and a sealing ring with overlapped ends crimped over said plug and double seam to securely hold said plug in tight sealing engagement, said sealing ring having a tongue to facilitate removal.
JOHN M. I-IOTHERSALL.
body, a. friction ring secured thereto and rangeable over projecting parts of said body L and said plug and adapted to securely hold said plug in tight sealing engagement.
3. In a friction top container, a container
US489528A 1930-10-18 1930-10-18 Container closure Expired - Lifetime US1847245A (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2695806A (en) * 1953-02-12 1954-11-30 Tinnerman Products Inc Fastening device
US2775362A (en) * 1954-12-22 1956-12-25 Continental Can Co Triple tight metal can closure
US2801762A (en) * 1954-09-23 1957-08-06 William A Atherton Paint can attachment
US3129840A (en) * 1963-03-04 1964-04-21 Halpern Joel Container for liquids
US3244354A (en) * 1964-11-02 1966-04-05 Cellu Kote Inc Slip over wedged cover
US3476287A (en) * 1969-01-07 1969-11-04 Continental Can Co Tripletite friction closures
US4055270A (en) * 1976-05-12 1977-10-25 Underwood J Larry Multiple chamber package
US4197961A (en) * 1978-11-28 1980-04-15 Sandy Alston C Container and lip attachment therefor
US4932554A (en) * 1988-03-25 1990-06-12 Cmb Packaging (Uk) Limited Lid retaining collar
US5193705A (en) * 1992-04-01 1993-03-16 Armstrong Containers, Inc. Transportation ring
EP0535383A2 (en) * 1991-10-04 1993-04-07 Schmalbach-Lubeca AG Container made of metal or of metallic laminated sheet
US5261551A (en) * 1992-01-14 1993-11-16 All-Pak, Inc. Paint or similar can with overcap having a central opening
US6142330A (en) * 1999-08-24 2000-11-07 Lunt Investments Corporation Locking ring for containers
US20030141311A1 (en) * 2002-01-30 2003-07-31 Armando Ceolin Hermetic closure system between a cover and a package
US20090223986A1 (en) * 2008-02-10 2009-09-10 Xubin Song Preservation container cover

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2695806A (en) * 1953-02-12 1954-11-30 Tinnerman Products Inc Fastening device
US2801762A (en) * 1954-09-23 1957-08-06 William A Atherton Paint can attachment
US2775362A (en) * 1954-12-22 1956-12-25 Continental Can Co Triple tight metal can closure
US3129840A (en) * 1963-03-04 1964-04-21 Halpern Joel Container for liquids
US3244354A (en) * 1964-11-02 1966-04-05 Cellu Kote Inc Slip over wedged cover
US3476287A (en) * 1969-01-07 1969-11-04 Continental Can Co Tripletite friction closures
US4055270A (en) * 1976-05-12 1977-10-25 Underwood J Larry Multiple chamber package
US4197961A (en) * 1978-11-28 1980-04-15 Sandy Alston C Container and lip attachment therefor
US4932554A (en) * 1988-03-25 1990-06-12 Cmb Packaging (Uk) Limited Lid retaining collar
EP0535383A2 (en) * 1991-10-04 1993-04-07 Schmalbach-Lubeca AG Container made of metal or of metallic laminated sheet
DE4133067A1 (en) * 1991-10-04 1993-04-08 Schmalbach Lubeca CONTAINER MADE OF METAL OR A METAL COMPOSITE FILM
EP0535383A3 (en) * 1991-10-04 1994-03-30 Schmalbach Lubeca
US5261551A (en) * 1992-01-14 1993-11-16 All-Pak, Inc. Paint or similar can with overcap having a central opening
US5193705A (en) * 1992-04-01 1993-03-16 Armstrong Containers, Inc. Transportation ring
US6142330A (en) * 1999-08-24 2000-11-07 Lunt Investments Corporation Locking ring for containers
US20030141311A1 (en) * 2002-01-30 2003-07-31 Armando Ceolin Hermetic closure system between a cover and a package
US6719166B2 (en) * 2002-01-30 2004-04-13 Armando Ceolin Hermetic closure system between a cover and a package
US20090223986A1 (en) * 2008-02-10 2009-09-10 Xubin Song Preservation container cover
US8418870B2 (en) * 2008-02-10 2013-04-16 Xubin Song Cover for preservation container

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