US3913779A - Can closure device - Google Patents
Can closure device Download PDFInfo
- Publication number
- US3913779A US3913779A US34698973A US3913779A US 3913779 A US3913779 A US 3913779A US 34698973 A US34698973 A US 34698973A US 3913779 A US3913779 A US 3913779A
- Authority
- US
- United States
- Prior art keywords
- plug
- section
- clip
- main body
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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
- B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
- B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
- B65D45/28—Elongated members, e.g. leaf springs, located substantially at right angles to closure axis and acting between the face of the closure and abutments on container
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
Abstract
A reusable can closure device particularly adapted for use in sealing a radially directed teardrop shaped opening formed in the top of a cylindrical can by a built-in pull-tab. The device is made up of two pieces, a plug of deformable resilient material and an elongated spring clip. One end of the spring clip is shaped in the form of a hook and the other end is shaped in the form of a clamp. The plug is attached to the clip in a force-fit manner near one end. When the clip is secured to the rim at the top of the can with the plug positioned over the opening, the plug extends over and partially into the opening so as to provide an airtight seal.
Description
United States Patent Blazer et al.
CAN CLOSURE DEVICE Inventors: Sidney J. Blazer, 19 Edward Ave.,
Old Bridge, NJ. 08857; Mark C. Jacobs, 4807 Marlborough Way, Carmichael, Calif. 95608 Filed: Apr. 2, 1973 Appl. No.: 346,989
Related US. Application Data Continuation-impart of Ser. No. 142,972, May 13, 1971, abandoned US. Cl. 220/243; 215/280; 215/287; v220/314; 220/323 Int. Cl B65d 45/18 Field of Search 220/57, 25; 215/90, 280, 215/287 References Cited UNITED STATES PATENTS 3,622,034 11/1971 Litzker 220/60 R 3,625,386 12/1971 Schaefer 215/9 FOREIGN PATENTS OR APPLICATIONS 5,216 9/1920 Netherlands 220/57 119,763 10/1918 United Kingdom 220/57 Primary ExaminerGeorge E. Lowrance Attorney, Agent, or FirmIrving M. Kriegsman; Mark C. Jacobs [57] ABSTRACT A reusable can closure device particularly adapted for use in sealing a radially directed teardrop shaped opening formed in the top of a cylindrical can by a built-in pull-tab. The device is made up of two pieces, a plug 'of deformable resilient material and an elongated spring clip. One end of the spring clip is shaped in the form of a hook and the other end is shaped in the form of a clamp. The plug is attached to the clip in a force-fit manner near one end. When the clip is secured to the rim at the top of the can with the plug positioned over the opening, the plug extends over and partially into the opening so as to provide an airtight seal.
7 Claims, 10 Drawing Figures US. Patent Oct. 21, 1975 Sheet 1 of2 3,913,779
[/WEA/rmsf 52d? J B/azer Mar C. Jacobs .IYTTOKNFY.
U.S. Patent Oct. 21, 1975 Sheet 2 of2 3,913,779
CAN CLOSURE DEVICE BACKGROUND OF THE INVENTION This application is a continuation-in-part of our copending application Ser. No. 142,972 filed May 13, 1971, now abandoned.
This invention relates to can closure devices. More particularly, this invention relates to a reusable can closure device particularly adapted for use in sealing a radially directed teardrop shaped opening formed in the top of a cylindrical can by a built-in pull-tab, but which may also be used to seal a radially directed opening formed in the top of a can by means other than a builtin pull-tab.
There has been on the market for several years now cylindrical cans for dispensing beverages and the like in which a built-in pull-tab is provided at the top of the can for quick opening. These cans have become very popular because of the ease of opening; however, once they have been opened, they cannot be resealed. Some of the known devices especially adapted for sealing such an opening can be found in U.S. Pat. No. 3,326,403, US. Pat. No. 3,622,034 and U.S. Pat. No. 3,650,432.
SUMMARY OF THE INVENTION It is an object of this invention to provide a reusable can closure device particularly adapted for use with pull-tab cans.
It is another object of this invention to provide a reusable can closure device adapted for use with pull-tab cans, that contains relatively few pieces, that is long lasting and easy to manufacture, assemble and disassemble.
It is still another object of this invention to provide a can closure device adapted for use with pull-tab cans, that is easy to put on and take off the can, that will provide an airtight seal and that will stay secured once it is attached to the can.
It is still another object of this invention to provide a can closure device particularly suited for use with cans having a built-in pull-tab that is attached to the rim at the top of the can.
According to this invention the above and other objects are achieved by providing a reusable can closure device made up essentially of a resilient deformable generally teardrop shaped plug and an elongated spring clip having one end shaped to form a hook and the other end shaped to form a clamp. The plug, which is FIG. 4 is a vertical sectional view taken along lines 4-4 of FIG. 3.
FIG. 5 is a dissembled perspective view of a preferred embodiment of a can closure device constructed according to this invention.
FIG. 6 is a perspective view of the plug portion of the device shown in FIG. 5 oriented so as to show the details of the bottom side.
FIGS. 7, 8 and 9 are views partly in section and partly in elevation showing in numerical sequence how the new can closure device in the FIG. 5 embodiment is secured to a can.
FIG. 10 is a section view taken in the direction of arrows 10-10 in FIG. 9.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to FIG. 1 there is shown a can 10 having a side wall 12, a top 14 and a rim 16 for securing the top 14 to side wall 12. An opening 18 generally in shape of a teardrop with rounded corners, extending radially outward from about the center of the top 14 to just before the rim l6, increasing in width in an outward direction, is formed by the removal of a tab 20 which is shown in dotted lines as being in the turned over position but not yet detached from the can 10. Also shown is a can closure device 22 constructed according to the invention.
The can closure device 22 comprises a plug 24 and a spring clip 26. Plug 24 is a one-piece member made of an elastomeric material such as rubber. Alternatively, plug 24 may comprise a porous material covered with a layer of elastomeric material. Although plug 24 attached to the clip nearer one end than the other end,
is sized and shaped larger than the opening formed when the pulltab is removed. When the can closure device is secured to the rim at the top of the can, the plug covers the opening and extends partially down into the opening to form an airtight seal. The can closure device is easily attached to and detached from thecan.
. BRIEF DESCRIPTION OF THE DRAWINGS is preferably solid, it may alternatively be hollow. Plug 24 has a lower teardrop shaped main body portion 28 extending downward to a bottom surface 30 from a flange 32. As shown in FIGS. 1 and 3, the shape of the bottom surface 30 and flange 32 conform generally to the shape of opening 18; however, the size of bottom surface 30 is smaller than opening 18 whereas the size of flange 32 is larger than opening 18. For use with a conventional sized pull-tab beverage can, the axial length of bottom wall 30 is 1 inch and the width of the widest point is five-eighths inch, while the axial length of flange 32 is 1% inches and the width of the widest point is 1 inch. As shown in FIGS. 1, 3 and 4, side wall 34 of main body portion 28 is tapered upwardly and outwardly from bottom surface 30 to the flange 32. Thus, when the plug 24 is placed in opening 18, the main body portion 28 will extend partially into can 10 with side wall 34 in contact with the sides of the opening 18.
Extending upward from the flange 32 is a securing portion 36. Securing portion 36 has shoulder 38 formed on the upper surface of the main body portion 28 and a neck 40 comprising a lower annular section 42 formed on shoulder 38, a collar 44 formed on section 42 and an upper annular section 46 formed on collar 44. Collar 44 is in the form of a prism, however, it may have any desired shape provided that the dimensions of collar 44 are smaller than the dimensions of upper and lower sections 42 and 46. In the embodiment shown the cross-section of collar 44 is square. Alternatively, the lower annular section 42 can be eliminated and the collar 44 formed directly on shoulder 38.
The closure device 22 further includes an elongated resilient spring clip 26 which is connected to the plug 24 for holding plug 24 in airtight sealing engagement with the opening 18 of the can 10. Clip 26 has sleeve portion 48 adapted to engage collar 44 on plug 24 and thereby secure the clip 26 to the plug 24. Sleeve portion 48 has arms 50 and 52 with a gap 54 therebetween and is generally shaped to conform to the shape of collar 44. Preferably, sleeve portion 48 is smaller than collar 44 so as to insure that the clip 26 will be held tightly on the plug 24. Sleeve portion 48 also has protrusions 56 and 58 extending inwardly from the ends of arms 50 and 52 respectively for tightly engaging the plug 24.
In use the closure device 22 is adapted to seal the opening 18 resulting from removing the pull-tab on can 10. Referring to FIGS. 1 and 2, the assembled can closure device 22 is brought into alignment with opening 18. Main body section 28 is inserted into opening 18 with side walls 34 in contact with the edges of the opening and hook 74 is attached to the rim 16 at the edge of can 10. A downward force is applied at section 60 pushing main body 28 into opening 18. Simultaneously, clamp 72 is forced outward and over rim 16 at the opposite edge of the top of the can from hook 74. Clamp 72 grips the underside of the rim 16 adjacent to side wall 12 locking plug 24 in place as shown in FIG. 2. The main body section 28 is inherently sufficiently resilient so that a portion of the main body portion 28 above end wall 14 is compressed into engagement with the exterior surface of the end wall. Since the main body portion 28 undergoes resilient expansion after passing through opening 18, a portion of the main body portion 28 engages the interior face of the end wall. In this manner an airtight seal is provided for the opening 18. With spring clip 26in place, a downward1force is exerted on plug 24 at points 64, 66 and 78 thereby tending to maintain the airtight seal. The plug is readily removed from the opening by grasping clamp 72and pulling section 60 upward until the plug 24 is pulled from the opening 18.
The spring clip 26 can be made by stamping or casting or any of the other well known metal forming manufacturing processes. In the embodiment shown in FIG V 1, the spring clip can be made by casting. In an alternative embodiment, by suitable modification of sleeve portion 48, the spring clip can be made by stamping. This is accomplished by providing arms on the back 1 side of the clip 26, corresponding to arms 50 and 52 instead of a continuous flange as shown in the detail.
A preferred embodiment of a can closure device 101" constructed according to this invention is shown in FIGS. 5 10. The can closure device 101 includes a A solid one-piece plug 103 of elastomeric material such as rubber. Plug 103 has a main body of considerable thickness. The back portion 104 of the main body, 105 is generally circular in horizontal cross-section and generally oval shaped in vertical cross-section. The
front portion 106 of the main body 105 is somewhat elongated. The overall shape of the plug 103 is similar 3 to a teardrop but sized larger than the teardrop shaped pull-tab opening 107 of the can 111. Extending down from the central portion of the bottom side 113 of the main body 105 is a platform having a teardrop shape conforming to the shape of the opening 107. but
being very slightly smaller in size. Thus, when the can closure device 101 is fastened to the top 109 of the can 111, the bottom 113 of the plug 103 rests on the top 109 and completely covers the opening 107, whereas the platform 115 extends down into the opening 107.
The plug 103 has a neck 117 extending upward from the main body 105. The neck 117 has outwardly tapered flat front and back walls 119 and 121' respec. tively, rounded top corners 123 and 125 and a generally flat top surface 127. Formed on the top surface 127 are a pair of spaced apart parallel ribs 129 and 131 which extend from the front to the back. The plug 103 may be made by molding or any other well known process for making a shaped body of elastomeric material.
The closure device 101 further includes an elongated resilient one-piece stainless steel clip 151 having an intermediate section 153 shaped in the form of a dovetailed slot 155. Disposed in the slot 155 in tight fitting relationship is the neck 117 of the plug 103. Clip 151 also includes a front end 157 and a rear end 159. The
It is to be noted that although the invention is particularly suited for use in connection with pull-tab cans, it is obvious that the invention may also be used for sealing the openings in the ends of cans of the same general configuration as the pull-tab openings, created by other means. Also it is to be noted that the invention is applicable to cans of any size and is not intended to be limited to cans of one particular size or to cans containing any particular substance.
What is claimed is:
1. A can closure device for sealing a teardrop shaped opening in the top of a cylindrical can extending radially outward from the center of the top to the rim comprising:
a. a one piece resilient plug comprising a main body portion and an integral securing portion extending upward from said main body portion, said main body portion having a teardrop shaped bottom wall sized smaller than the size of the teardrop shaped opening in the can, an upper surface and side walls tapering upwardly and outwardly from the bottom wall to the upper surface, and a flange sized larger than the teardrop shaped opening in the can, said securing portion comprising a shoulder section formed on the upper surface of the main body portion, a collar section formed on the shoulder section and an annular shaped section formed over the collar section, said annular shaped section having a top; and
b. a one piece elongated resilient spring clip having a sleeve portion engaging the collar section of said plug, an intermediate section coupled to said sleeve portion and extending over and having a downwardly extending portion in contact with at least one point of the top of the annular section of said plug and outwardly extending and upwardly sloping front and rear sections of unequal length coupled to said sleeve, each section being in contact with at least one point on the shoulder section of the plug on opposite sides of the collar section, one section having a hook at one end and the other section having a clamp and finger grasping tip at the end for engaging opposite points of the edges of said can, the length of each section being such that the sealing portion of the plug is forced into airtight sealing engagement with the opening in the end wall of said can when the clamp and the hook at the respective ends are in engagement with opposite edges of-the can.
2. A reusable can closure device particularly adapted for use in sealing openings found in the top of a cylindrical can, which can has a cylindrical side wall and a circular rim, said closure comprising:
a. a resilient deformable plug having a generally teardrop shape and including a main body portion sized larger than the opening area of the can top, and a neck portion extending upward from the main body portion, the neck portion having a top surface and upwardly tapered back and front walls, the main body portion having a bottom side, and a generally teardrop shaped platform;
b. an elongated resilient spring clip adapted to be removably hooked onto the can rim at one end and clamped onto the rim at the other end, said clip being a one piece metallic member, the intermediate section thereof being shaped to form a dovetail slot for receiving and holding in tight fitting relationship the neck of the plug, the dovetail slot including upwardly tapered front and back walls coreacting with said neck portion of the plug, and a top wallcooperating with the top surface of the neck portion of the plug to prevent sidewise movement of the plug relative to the clip, and having a front section sloping downwardly with the horizontal, and a reverse curved portion forming a clamp and then terminating in downward and outward extending finger grasping tip, and the rear section terminating in a downward and outward curve portion forming a hook, the clamp being lower than the hook.
3. The can closure as in claim 2 wherein the top surface of the plug neck has a pair of ribs thereon to cooperate with the clip top wall.
4. The can closure of claim 2 further including tab means extending out from the top wall of the clip.
5. The closure of claim 2 wherein the plug is a one piece body of elastomeric material.
6. The closure of claim 2 wherein the plug is a porous material covered with a layer of elastomer.
7. The can closure of claim 3 wherein the plug is a one piece body of elastomeric material.
Claims (7)
1. A can closure device for sealing a teardrop shaped opening in the top of a cylindrical can extending radially outward from the center of the top to the rim comprising: a. a one piece resilient plug comprising a main body portion and an integral securing portion extending upward from said main body portion, said main body portion having a teardrop shaped bottom wall sized smaller than the size of the teardrop shaped opening in the can, an upper surface and side walls tapering upwardly and outwardly from the bottom wall to the upper surface, and a flange sized larger than the teardrop shaped opening in the can, said securing portion comprising a shoulder section formed on the upper surface of the main body portion, a collar section formed on the shoulder section and an annular shaped section formed over the collar section, said annular shaped section having a top; and b. a one piece elongated resilient spring clip having a sleeve portion engaging the collar section of said plug, an intermediate section coupled to said sleeve portion and extending over and having a downwardly extending portion in contact with at least one point of the top of the annular section of said plug and outwardly extending and upwardly sloping front and rear sections of unequal length coupled to said sleeve, each section being in contact with at least one point on the shoulder section of the plug on opposite sides of the collar section, one section having a hook at one end and the other section having a clamp and finger grasping tip at the end for engaging opposite points of the edges of said can, the length of each section being such that the sealing portion of the plug is forced into airtight sealing engagement with the opening in the end wall of said can when the clamp and the hook at the respective ends are in engagement with opposite edges of the can.
2. A reusable can closure device particularly adapted for use in sealing openings found in the top of a cylindrical can, which can has a cylindrical side wall and a circular rim, said closure comprising: a. a resilient deformable plug having a generally teardrop shape and including a main body portion sized larger than the opening area of the can top, and a neck portion extending upward from the main body portion, the neck portion having a top surface and upwardly tapered back and front walls, the main body portion having a bottom side, and a generally teardrop shaped platform; b. an elongated resilient spring clip adapted to be removably hooked onto the can rim at one end and clamped onto the rim at the other end, said clip being a one piece metallic member, the intermediate section thereof being shaped to form a dovetail sloT for receiving and holding in tight fitting relationship the neck of the plug, the dovetail slot including upwardly tapered front and back walls coreacting with said neck portion of the plug, and a top wall cooperating with the top surface of the neck portion of the plug to prevent sidewise movement of the plug relative to the clip, and having a front section sloping downwardly with the horizontal, and a reverse curved portion forming a clamp and then terminating in downward and outward extending finger grasping tip, and the rear section terminating in a downward and outward curve portion forming a hook, the clamp being lower than the hook.
3. The can closure as in claim 2 wherein the top surface of the plug neck has a pair of ribs thereon to cooperate with the clip top wall.
4. The can closure of claim 2 further including tab means extending out from the top wall of the clip.
5. The closure of claim 2 wherein the plug is a one piece body of elastomeric material.
6. The closure of claim 2 wherein the plug is a porous material covered with a layer of elastomer.
7. The can closure of claim 3 wherein the plug is a one piece body of elastomeric material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US34698973 US3913779A (en) | 1971-05-13 | 1973-04-02 | Can closure device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14297271A | 1971-05-13 | 1971-05-13 | |
US34698973 US3913779A (en) | 1971-05-13 | 1973-04-02 | Can closure device |
Publications (1)
Publication Number | Publication Date |
---|---|
US3913779A true US3913779A (en) | 1975-10-21 |
Family
ID=26840572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US34698973 Expired - Lifetime US3913779A (en) | 1971-05-13 | 1973-04-02 | Can closure device |
Country Status (1)
Country | Link |
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US (1) | US3913779A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4143789A (en) * | 1978-04-26 | 1979-03-13 | Rheem Manufacturing Company | Retainer for releasable securement of drums and sealing caps |
US4387826A (en) * | 1980-08-05 | 1983-06-14 | Walter Heubl | Closure for cans provided with beaded edge |
US4410102A (en) * | 1982-06-10 | 1983-10-18 | Lutzker Robert S | Can sealer |
DE3425920A1 (en) * | 1984-07-13 | 1986-01-16 | Walter 8901 Aystetten Heubl | Closure for cans provided with an edge bead |
US5842594A (en) * | 1997-02-07 | 1998-12-01 | Ibara; Shirley | Sealing device for opened cans |
US20050236411A1 (en) * | 2004-04-23 | 2005-10-27 | Huffman Todd A | Re-sealable can mechanism |
US8215513B1 (en) | 2007-08-20 | 2012-07-10 | Popseal LLC. | Self-closing resealable can end |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1473048A (en) * | 1921-02-09 | 1923-11-06 | Henry P Roberts | Bottle stopper |
US2157218A (en) * | 1935-10-14 | 1939-05-09 | Donald M Ross | Closure device |
US2841307A (en) * | 1956-11-01 | 1958-07-01 | Florence S Yoder | Closure device |
US3215298A (en) * | 1962-05-28 | 1965-11-02 | Thomas N Shaffer | Bottle stopper |
US3326403A (en) * | 1966-01-05 | 1967-06-20 | Glass Sidney | Two-piece stopper |
US3622034A (en) * | 1969-11-04 | 1971-11-23 | Robert S Lutzker | Can-top opening closure |
US3625386A (en) * | 1969-11-25 | 1971-12-07 | Res & Safety Devices Corp | Safety container assembly |
-
1973
- 1973-04-02 US US34698973 patent/US3913779A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1473048A (en) * | 1921-02-09 | 1923-11-06 | Henry P Roberts | Bottle stopper |
US2157218A (en) * | 1935-10-14 | 1939-05-09 | Donald M Ross | Closure device |
US2841307A (en) * | 1956-11-01 | 1958-07-01 | Florence S Yoder | Closure device |
US3215298A (en) * | 1962-05-28 | 1965-11-02 | Thomas N Shaffer | Bottle stopper |
US3326403A (en) * | 1966-01-05 | 1967-06-20 | Glass Sidney | Two-piece stopper |
US3622034A (en) * | 1969-11-04 | 1971-11-23 | Robert S Lutzker | Can-top opening closure |
US3625386A (en) * | 1969-11-25 | 1971-12-07 | Res & Safety Devices Corp | Safety container assembly |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4143789A (en) * | 1978-04-26 | 1979-03-13 | Rheem Manufacturing Company | Retainer for releasable securement of drums and sealing caps |
US4387826A (en) * | 1980-08-05 | 1983-06-14 | Walter Heubl | Closure for cans provided with beaded edge |
US4410102A (en) * | 1982-06-10 | 1983-10-18 | Lutzker Robert S | Can sealer |
DE3425920A1 (en) * | 1984-07-13 | 1986-01-16 | Walter 8901 Aystetten Heubl | Closure for cans provided with an edge bead |
US5842594A (en) * | 1997-02-07 | 1998-12-01 | Ibara; Shirley | Sealing device for opened cans |
US20050236411A1 (en) * | 2004-04-23 | 2005-10-27 | Huffman Todd A | Re-sealable can mechanism |
WO2005108234A2 (en) * | 2004-04-23 | 2005-11-17 | Huffman Todd A | Re-sealable can mechanism |
WO2005108234A3 (en) * | 2004-04-23 | 2006-05-11 | Todd A Huffman | Re-sealable can mechanism |
US7152753B2 (en) * | 2004-04-23 | 2006-12-26 | Huffman Todd A | Re-sealable can mechanism |
US20070023441A1 (en) * | 2004-04-23 | 2007-02-01 | Huffman Todd A | Re-sealable can mechanism |
US7735673B2 (en) | 2004-04-23 | 2010-06-15 | Todd Huffman | Re-sealable can mechanism |
US8215513B1 (en) | 2007-08-20 | 2012-07-10 | Popseal LLC. | Self-closing resealable can end |
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