US20060138142A1 - Double ribbed cover - Google Patents
Double ribbed cover Download PDFInfo
- Publication number
- US20060138142A1 US20060138142A1 US11/024,284 US2428404A US2006138142A1 US 20060138142 A1 US20060138142 A1 US 20060138142A1 US 2428404 A US2428404 A US 2428404A US 2006138142 A1 US2006138142 A1 US 2006138142A1
- Authority
- US
- United States
- Prior art keywords
- closure
- wall
- wall thickness
- radially outwardly
- peak
- 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.)
- Abandoned
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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
- B65D45/32—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
- B65D45/34—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 lever-operated
-
- 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
- B65D2543/00296—Plastic
-
- 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
- B65D2543/00342—Central part of the lid
- B65D2543/00398—Reinforcing ribs in the central part of the closure
- B65D2543/00416—Reinforcing ribs in the central part of the closure circular
Definitions
- This invention relates to a drum closure and, more particularly, to a double ribbed cover of varying wall thickness.
- a drum comprises a tubular container having an open end with a cylindrical connecting bead at the open end.
- the connecting bead may be provided by a metal connecting ring rolled onto the side wall or a plastic connecting ring molded directly to or otherwise adhered to the side wall.
- the side wall may be of molded plastic construction with an integral connecting bead.
- the conventional drum includes a removable closure for closing the open end of the tubular side wall.
- a typical closure includes a central circular wall with a peripheral connecting flange receivable on the connecting bead so that the circular wall closes the open end of the container.
- a locking band secures the closure on the drum. While such a container may be used for storage purposes, often the containers must be lifted by lifting equipment and shipped, such as by truck.
- Various standards organizations require that a closure for use on a drum as described have suitable reinforcement to provide sufficient impact resistance.
- such a closure includes circular channels or rings formed in the circular wall providing a wave-like appearance. Also, the closures may include reinforcing ribs.
- a typical closure is formed of molded synthetic resin, such as high density polyethylene. In designing such a closure, consideration may be given to minimizing weight and cost of the closure while also satisfying standards requirements. As such, a conventional closure is manufactured having a wall thickness sufficient for impact resistance.
- a typical closure for a 211 ⁇ 2′′ drum has a wall thickness on the order of 0.16′′ nominal. As is known, the wall thickness may narrow to, for example, 0.15′′ at the edges to provide draft for molding. Lesser thickness closures have been considered, but may not provide the necessary impact resistance.
- the present invention is directed to solving one or more of the problems discussed above in a novel and simple manner.
- a closure for use with a tubular container including areas of different wall thickness.
- a unitary closure for use with a tubular container having an open end with a cylindrical connecting bead at the open end.
- the unitary closure comprises a planar circular wall defining a flat upper surface having a peripheral edge.
- a first concentric ring is radially outwardly of the peripheral edge defining a first upwardly opening valley.
- a second concentric ring is radially outwardly of the first concentric ring at an annular peak and defines a second upwardly opening valley having a generally planar bottom wall.
- Inner and outer concentric ribs extend downwardly from the planar bottom wall.
- a connecting flange is radially outwardly of the second concentric ring including a downwardly opening channel receivable on the cylindrical connecting bead to close the open end of the container.
- the closure has a substantially greater wall thickness radially outwardly of the peak than radially inwardly of the peak.
- the closure comprises a wall thickness nominally about 0.16′′ radially outwardly of the peak and a wall thickness nominally 0.09′′ radially inwardly of the peak.
- the circular wall and the first concentric ring have a first wall thickness
- the second concentric ring, radially inwardly of the outer concentric rib has a second wall thickness greater than the first wall thickness
- the outer concentric ring and the connecting flange have a third wall thickness greater than the second wall thickness
- the closure has a wall thickness radially outwardly of the peak more than 50% greater than radially inwardly of the peak.
- the closure has a wall thickness radially outwardly of the peak about two-thirds greater than radially inwardly of the peak.
- a unitary closure for use with a tubular container having an open end with a cylindrical connecting bead at the open end.
- the unitary closure comprises a downwardly opening U-shaped wall portion receivable on the cylindrical connecting bead.
- a concentric ring is inwardly of the U-shaped wall portion defining an upwardly opening valley including an outer wall connected to the U-shaped wall portion, a planar bottom wall and a conical inner wall having an upper annular edge.
- Inner and outer concentric ribs extend downwardly from the planar bottom wall.
- a circular center wall is connected to the upper annular edge.
- the closure has a substantially greater wall thickness radially outwardly of the upper annular edge than radially inwardly of the upper annular edge.
- the center wall comprises a planar circular wall defining a flat upper surface having a peripheral edge and another concentric ring radially outwardly of the peripheral edge, defining another upwardly opening valley, and connected to the upper annular edge.
- the U-shaped wall portion has a diameter to be received and a tubular container having a 211 ⁇ 2′′ connecting bead.
- the closure comprises a unitary wall element of synthetic resin.
- FIG. 1 is an exploded perspective view of a container including a closure according to the invention
- FIG. 2 is a top perspective view of the closure of FIG. 1 ;
- FIG. 3 is a bottom perspective view of the closure of FIG. 1 ;
- FIG. 4 is a sectional view taken along a line 4 - 4 of FIG. 2 ;
- FIG. 5 is a detailed sectional view of a left portion of the sectional view of FIG. 4 ;
- FIG. 6 is a sectional view illustrating the assembled container and closure.
- a shipping and storage container in the form of a drum 12 includes a tubular side wall 14 closed by a bottom wall (not shown) and having an open end 16 to define an interior space 18 .
- a cylindrical connecting bead 20 is at the open end 16 .
- the open end 16 is selectively closed by a closure 22 in accordance with the invention removably secured to the connecting bead 20 with a locking band 24 .
- the drum 12 comprises a cylindrical, blow-molded plastic drum.
- the drum has a capacity of 55 U.S. gallons and the connecting bead 20 has a diameter of about 211 ⁇ 2′′.
- the present invention is directed particularly to the closure 22 which can be used with drums of other construction, such as metal, fiberboard, or composite construction, as will be apparent.
- the closure 22 comprises a unitary wall element of molded synthetic resin, such as high density polyethylene.
- the closure 22 includes a circular center wall 26 .
- the center wall 26 comprises a circular planar wall or panel 28 surrounded by a first concentric ring 34 .
- the circular panel 28 has a flat upper surface 30 having a peripheral edge 32 .
- the first concentric ring 34 is radially outwardly of the peripheral edge 32 defining a first upwardly opening valley 36 .
- the first concentric ring is generally V-shaped.
- a second concentric ring 38 is radially outwardly of the first concentric ring 34 .
- the concentric rings 34 and 38 are connected at an annular peak 40 .
- the second concentric ring 38 defines a second upwardly opening valley 42 .
- the second upwardly opening valley 42 is more U-shaped having a generally flat bottom.
- the second concentric ring 38 includes an outer wall 44 , a planar bottom wall 46 and a conical inner wall 48 .
- An upper annular edge of the conical inner wall 48 comprises the annular peak 40 connected to the first concentric 34 .
- the concentric rings 34 and 38 provide a wave like appearance.
- An inner concentric rib 50 extends downwardly from the bottom wall 46 at its junction with the conical wall 48 .
- An outer concentric rib 52 extends downwardly from the bottom wall 46 at its junction with the outer wall 44 .
- the concentric ribs 50 and 52 are of similar height and are used to increase stiffness.
- a connecting flange 54 is radially outwardly of the second concentric ring 38 .
- the connecting flange 54 comprises a downwardly opening U-shaped wall portion 56 connected at an upper edge of the outer wall 44 .
- the U-shaped wall portion defines a downwardly opening channel 58 receivable on the cylindrical connecting bead 20 to close the open end 16 of the container 12 .
- an annular gasket 60 is positioned in the channel 58 .
- the gasket 60 is seated on the connecting bead 20 .
- the locking band 24 sandwiches the connecting flange 54 , gasket 60 and connecting bead 20 to retain the closure 22 on the drum 12 in a conventional manner.
- the closure 22 is adapted to use a reduced wall thickness in non-critical areas, while maintaining a standard wall thickness in critical areas.
- the walls of the connecting flange 54 are shown to include a wall thickness A.
- the outer concentric rib 52 is also of the wall thickness A.
- the bottom wall 46 , inner concentric rib 50 and conical wall 48 are of a wall thickness B.
- the annular peak 40 , first concentric ring 34 and the circular planar wall 28 are of a wall thickness C.
- the wall thickness A is substantially greater than the wall thickness C.
- the wall thickness B may be the same as the wall thickness A, or may be slightly less than the wall thickness A to provide a transition between the wall thickness A and the wall thickness C.
- the wall thickness A is more than 50% greater than the wall thickness C and in one embodiment of the invention is about two-thirds greater than the wall thickness C.
- the wall thicknesses A and B are nominally 0.16′′ and the wall thickness C is 0.09′′.
- the wall thickness at edges of the U-shaped wall portion 56 and the ribs 50 and 52 may be on the order of 0.15′′ to provide draft for mold purposes.
- the wall thickness B may be on the order of 0.13′′ nominally.
- the wall thickness radially outwardly of the annular peak 40 is of substantially greater wall thickness than radially inwardly of the annular peak 40 .
- a substantially thicker wall thickness as described provides a lighter weight closure while maintaining required reinforcement in critical areas.
- a conventional closure of 0.16′′ wall thickness has a weight of about 2.8 lbs. while the described closure has a weight of about 2.25 lbs.
- a pair of recessed bung wells 62 and 64 are connected to the center wall 28 radially inwardly of the inner concentric rib 40 and the planar bottom wall 46 .
- the bung wells 62 and 64 may be provided with conventional bung or vent openings.
- the bung wells are of the thickness A, described above.
- a unitary double ribbed cover including reduced wall thickness in non-critical areas to reduce weight.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
A unitary closure is used with a tubular container having an open end with a cylindrical connecting bead at the open end. The unitary closure comprises a planar circular wall defining a flat upper surface having a peripheral edge. A first concentric ring is radially outwardly of the peripheral edge defining a first upwardly opening valley. A second concentric ring is radially outwardly of the first concentric ring at an annular peak and defines a second upwardly opening valley having a generally planar bottom wall. Inner and outer concentric ribs extend downwardly from the planar bottom wall. A connecting flange is radially outwardly of the second concentric ring including a downwardly opening channel receivable on the cylindrical connecting bead to close the open end of the container. The closure has a substantially greater wall thickness radially outwardly of the peak than radially inwardly of the peak.
Description
- This invention relates to a drum closure and, more particularly, to a double ribbed cover of varying wall thickness.
- In one form of conventional shipping and storage container, a drum comprises a tubular container having an open end with a cylindrical connecting bead at the open end. The connecting bead may be provided by a metal connecting ring rolled onto the side wall or a plastic connecting ring molded directly to or otherwise adhered to the side wall. Alternatively, the side wall may be of molded plastic construction with an integral connecting bead.
- The conventional drum includes a removable closure for closing the open end of the tubular side wall. A typical closure includes a central circular wall with a peripheral connecting flange receivable on the connecting bead so that the circular wall closes the open end of the container. A locking band secures the closure on the drum. While such a container may be used for storage purposes, often the containers must be lifted by lifting equipment and shipped, such as by truck. Various standards organizations require that a closure for use on a drum as described have suitable reinforcement to provide sufficient impact resistance. Typically, such a closure includes circular channels or rings formed in the circular wall providing a wave-like appearance. Also, the closures may include reinforcing ribs.
- A typical closure is formed of molded synthetic resin, such as high density polyethylene. In designing such a closure, consideration may be given to minimizing weight and cost of the closure while also satisfying standards requirements. As such, a conventional closure is manufactured having a wall thickness sufficient for impact resistance. A typical closure for a 21½″ drum has a wall thickness on the order of 0.16″ nominal. As is known, the wall thickness may narrow to, for example, 0.15″ at the edges to provide draft for molding. Lesser thickness closures have been considered, but may not provide the necessary impact resistance.
- The present invention is directed to solving one or more of the problems discussed above in a novel and simple manner.
- In accordance with the invention, there is provided a closure for use with a tubular container including areas of different wall thickness.
- Broadly, in accordance with one aspect of the invention, there is disclosed a unitary closure for use with a tubular container having an open end with a cylindrical connecting bead at the open end. The unitary closure comprises a planar circular wall defining a flat upper surface having a peripheral edge. A first concentric ring is radially outwardly of the peripheral edge defining a first upwardly opening valley. A second concentric ring is radially outwardly of the first concentric ring at an annular peak and defines a second upwardly opening valley having a generally planar bottom wall. Inner and outer concentric ribs extend downwardly from the planar bottom wall. A connecting flange is radially outwardly of the second concentric ring including a downwardly opening channel receivable on the cylindrical connecting bead to close the open end of the container. The closure has a substantially greater wall thickness radially outwardly of the peak than radially inwardly of the peak.
- It is a feature of the invention that the closure comprises a wall thickness nominally about 0.16″ radially outwardly of the peak and a wall thickness nominally 0.09″ radially inwardly of the peak.
- It is another feature of the invention that the circular wall and the first concentric ring have a first wall thickness, the second concentric ring, radially inwardly of the outer concentric rib has a second wall thickness greater than the first wall thickness and the outer concentric ring and the connecting flange have a third wall thickness greater than the second wall thickness.
- It is still another feature of the invention that the closure has a wall thickness radially outwardly of the peak more than 50% greater than radially inwardly of the peak.
- It is still another feature of the invention that the closure has a wall thickness radially outwardly of the peak about two-thirds greater than radially inwardly of the peak.
- There is disclosed in accordance with another aspect of the invention a unitary closure for use with a tubular container having an open end with a cylindrical connecting bead at the open end. The unitary closure comprises a downwardly opening U-shaped wall portion receivable on the cylindrical connecting bead. A concentric ring is inwardly of the U-shaped wall portion defining an upwardly opening valley including an outer wall connected to the U-shaped wall portion, a planar bottom wall and a conical inner wall having an upper annular edge. Inner and outer concentric ribs extend downwardly from the planar bottom wall. A circular center wall is connected to the upper annular edge. The closure has a substantially greater wall thickness radially outwardly of the upper annular edge than radially inwardly of the upper annular edge.
- It is a feature of the invention that the center wall comprises a planar circular wall defining a flat upper surface having a peripheral edge and another concentric ring radially outwardly of the peripheral edge, defining another upwardly opening valley, and connected to the upper annular edge.
- It is a further feature of the invention to provide a pair of recessed bung wells connected to the center wall radially inwardly of the inner concentric rib.
- It is still another feature of the invention that the U-shaped wall portion has a diameter to be received and a tubular container having a 21½″ connecting bead.
- It is still a further feature of the invention that the closure comprises a unitary wall element of synthetic resin.
- Further features and advantages of the invention will be readily apparent from the specification and from the drawings.
-
FIG. 1 is an exploded perspective view of a container including a closure according to the invention; -
FIG. 2 is a top perspective view of the closure ofFIG. 1 ; -
FIG. 3 is a bottom perspective view of the closure ofFIG. 1 ; -
FIG. 4 is a sectional view taken along a line 4-4 ofFIG. 2 ; -
FIG. 5 is a detailed sectional view of a left portion of the sectional view ofFIG. 4 ; and -
FIG. 6 is a sectional view illustrating the assembled container and closure. - In the illustrated embodiment of the invention, as disclosed in
FIG. 1 , a shipping and storage container in the form of adrum 12 includes atubular side wall 14 closed by a bottom wall (not shown) and having anopen end 16 to define aninterior space 18. Acylindrical connecting bead 20 is at theopen end 16. Theopen end 16 is selectively closed by aclosure 22 in accordance with the invention removably secured to the connectingbead 20 with alocking band 24. - In the illustrated embodiment of the invention, the
drum 12 comprises a cylindrical, blow-molded plastic drum. The drum has a capacity of 55 U.S. gallons and the connectingbead 20 has a diameter of about 21½″. However, the present invention is directed particularly to theclosure 22 which can be used with drums of other construction, such as metal, fiberboard, or composite construction, as will be apparent. - Referring to
FIGS. 2-5 , theclosure 22 is illustrated in greater detail. Theclosure 22 comprises a unitary wall element of molded synthetic resin, such as high density polyethylene. Theclosure 22 includes acircular center wall 26. Thecenter wall 26 comprises a circular planar wall orpanel 28 surrounded by a firstconcentric ring 34. Thecircular panel 28 has a flatupper surface 30 having aperipheral edge 32. The firstconcentric ring 34 is radially outwardly of theperipheral edge 32 defining a first upwardly openingvalley 36. Particularly, the first concentric ring is generally V-shaped. A secondconcentric ring 38 is radially outwardly of the firstconcentric ring 34. The concentric rings 34 and 38 are connected at anannular peak 40. The secondconcentric ring 38 defines a second upwardly openingvalley 42. The second upwardly openingvalley 42 is more U-shaped having a generally flat bottom. Particularly, the secondconcentric ring 38 includes anouter wall 44, aplanar bottom wall 46 and a conicalinner wall 48. An upper annular edge of the conicalinner wall 48 comprises theannular peak 40 connected to the first concentric 34. The concentric rings 34 and 38 provide a wave like appearance. An innerconcentric rib 50 extends downwardly from thebottom wall 46 at its junction with theconical wall 48. An outerconcentric rib 52 extends downwardly from thebottom wall 46 at its junction with theouter wall 44. Theconcentric ribs - A connecting
flange 54 is radially outwardly of the secondconcentric ring 38. The connectingflange 54 comprises a downwardly openingU-shaped wall portion 56 connected at an upper edge of theouter wall 44. The U-shaped wall portion defines a downwardly openingchannel 58 receivable on the cylindrical connectingbead 20 to close theopen end 16 of thecontainer 12. Particularly, and with reference toFIG. 6 , anannular gasket 60 is positioned in thechannel 58. Thegasket 60 is seated on the connectingbead 20. The lockingband 24 sandwiches the connectingflange 54,gasket 60 and connectingbead 20 to retain theclosure 22 on thedrum 12 in a conventional manner. - In accordance with the invention, the
closure 22 is adapted to use a reduced wall thickness in non-critical areas, while maintaining a standard wall thickness in critical areas. - Particularly, and with reference to
FIGS. 4 and 5 , the walls of the connectingflange 54 are shown to include a wall thickness A. The outerconcentric rib 52 is also of the wall thickness A. Thebottom wall 46, innerconcentric rib 50 andconical wall 48 are of a wall thickness B. Theannular peak 40, firstconcentric ring 34 and the circularplanar wall 28 are of a wall thickness C. In accordance with the invention, the wall thickness A is substantially greater than the wall thickness C. The wall thickness B may be the same as the wall thickness A, or may be slightly less than the wall thickness A to provide a transition between the wall thickness A and the wall thickness C. Particularly, in accordance with the invention, the wall thickness A is more than 50% greater than the wall thickness C and in one embodiment of the invention is about two-thirds greater than the wall thickness C. In an illustrative embodiment of the invention, the wall thicknesses A and B are nominally 0.16″ and the wall thickness C is 0.09″. As will be apparent, the wall thickness at edges of theU-shaped wall portion 56 and theribs annular peak 40 is of substantially greater wall thickness than radially inwardly of theannular peak 40. The use of a substantially thicker wall thickness as described provides a lighter weight closure while maintaining required reinforcement in critical areas. In fact, a conventional closure of 0.16″ wall thickness has a weight of about 2.8 lbs. while the described closure has a weight of about 2.25 lbs. - Referring again to
FIGS. 2 and 3 , a pair of recessedbung wells center wall 28 radially inwardly of the innerconcentric rib 40 and theplanar bottom wall 46. Thebung wells - Thus, in accordance with the invention, there is provided a unitary double ribbed cover including reduced wall thickness in non-critical areas to reduce weight.
Claims (14)
1. A unitary closure for use with a tubular container having an open end with a cylindrical connecting bead at the open end, the unitary closure comprising:
a planar circular wall defining a flat upper surface having a peripheral edge, a first concentric ring radially outwardly of the peripheral edge defining a first upwardly opening valley, a second concentric ring radially outwardly of the first concentric ring at an annular peak and defining a second upwardly opening valley having a generally planar bottom wall, inner and outer concentric ribs extending downwardly from the planar bottom wall, and a connecting flange radially outwardly of the second concentric ring including a downwardly opening channel receivable on the cylindrical connecting bead to close the open end of the container, the closure having a substantially greater wall thickness radially outwardly of the peak than radially inwardly of the peak.
2. The unitary closure of claim 1 wherein the closure comprises a wall thickness nominally about 0.16 inches radially outwardly of the peak and a wall thickness nominally 0.09 inches radially inwardly of the peak.
3. The unitary closure of claim 1 wherein the circular wall and the first concentric ring have a first wall thickness, the second concentric ring, radially inwardly of the outer concentric rib has a second wall thickness greater than the first wall thickness and the outer concentric rib and the connecting flange have a third wall thickness greater than the second wall thickness.
4. The unitary closure of claim 1 wherein the closure having a wall thickness radially outwardly of the peak more than 50% greater then radially inwardly of the peak.
5. The unitary closure of claim 1 wherein the closure having a wall thickness radially outwardly of the peak about ⅔ greater then radially inwardly of the peak.
6. A unitary closure for use with a tubular container having an open end with a cylindrical connecting bead at the open end, the unitary closure comprising:
a downwardly opening U-shaped wall portion receivable on the cylindrical connecting bead; a concentric ring inwardly of the U-shaped wall portion defining an upwardly opening valley including an outer wall connected to the U-shaped wall portion, a planar bottom wall and a conical inner wall having an upper annular edge; inner and outer concentric ribs extending downwardly from the planar bottom wall; and a circular center wall connected to the upper annular edge, the closure having a substantially greater wall thickness radially outwardly of the upper annular edge than radially inwardly of the upper annular edge.
7. The unitary closure of claim 6 wherein the closure comprises a wall thickness nominally about 0.16 inches radially outwardly of the upper annular edge and a wall thickness nominally 0.09 inches radially inwardly of the upper annular edge.
8. The unitary closure of claim 6 wherein the center wall has a first wall thickness, the concentric ring, radially inwardly of the outer concentric rib has a second wall thickness greater than the first wall thickness and the outer concentric rib and the U-shaped wall portion have a third wall thickness greater than the second wall thickness.
9. The unitary closure of claim 6 wherein the closure having a wall thickness radially outwardly of the upper annular edge more than 50% greater then radially inwardly of the upper annular edge.
10. The unitary closure of claim 6 wherein the closure having a wall thickness radially outwardly of the upper annular edge about ⅔ greater then radially inwardly of the upper annular edge.
11. The unitary closure of claim 6 wherein the center wall comprises a planar circular wall defining a flat upper surface having a peripheral edge and another concentric ring radially outwardly of the peripheral edge, defining another upwardly opening valley, and connected to the upper annular edge.
12. The unitary closure of claim 6 further comprising a pair of recessed bung wells connected to the center wall radially inwardly of the inner concentric rib.
13. The unitary closure of claim 6 wherein the U-shaped wall portion has a diameter to be received on a tubular container having a 21½ inch connecting bead.
14. The unitary closure of claim 6 wherein the closure comprises a unitary wall element of synthetic resin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/024,284 US20060138142A1 (en) | 2004-12-28 | 2004-12-28 | Double ribbed cover |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US11/024,284 US20060138142A1 (en) | 2004-12-28 | 2004-12-28 | Double ribbed cover |
Publications (1)
Publication Number | Publication Date |
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US20060138142A1 true US20060138142A1 (en) | 2006-06-29 |
Family
ID=36610202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/024,284 Abandoned US20060138142A1 (en) | 2004-12-28 | 2004-12-28 | Double ribbed cover |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060138141A1 (en) * | 2004-12-17 | 2006-06-29 | Stolzman Michael D | Reduced thickness cover |
US20090152271A1 (en) * | 2007-12-12 | 2009-06-18 | Kuzelka Kenneth J | High pressure drum cover |
US9156223B2 (en) | 2012-09-20 | 2015-10-13 | International Precision Components Corporation | Container with sidewall and closure |
Citations (8)
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---|---|---|---|---|
US2816682A (en) * | 1954-04-05 | 1957-12-17 | Zenith Plastics Company | Container |
US3840144A (en) * | 1972-08-29 | 1974-10-08 | Nat Ind Containers | Plastic cover for cylindrical containers of large capacity |
US4500010A (en) * | 1983-02-17 | 1985-02-19 | Schuetz Udo | Wide-necked container of a synthetic resin with removable lid |
US5259526A (en) * | 1992-04-03 | 1993-11-09 | Stolzman Michael D | Ribbed cover |
US5722562A (en) * | 1996-03-28 | 1998-03-03 | C.A.P.S. Inc. | Tube cap |
US5941406A (en) * | 1996-07-19 | 1999-08-24 | Mauser-Werke Gmbh | Lidded barrel with barrel lid and clamping-ring closure |
US5964367A (en) * | 1992-10-28 | 1999-10-12 | Mauser-Werke Gmbh | Lidded barrel |
US6401957B1 (en) * | 1998-05-28 | 2002-06-11 | Mauser-Werke Gmbh | Barrel with plastic lid |
-
2004
- 2004-12-28 US US11/024,284 patent/US20060138142A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2816682A (en) * | 1954-04-05 | 1957-12-17 | Zenith Plastics Company | Container |
US3840144A (en) * | 1972-08-29 | 1974-10-08 | Nat Ind Containers | Plastic cover for cylindrical containers of large capacity |
US4500010A (en) * | 1983-02-17 | 1985-02-19 | Schuetz Udo | Wide-necked container of a synthetic resin with removable lid |
US5259526A (en) * | 1992-04-03 | 1993-11-09 | Stolzman Michael D | Ribbed cover |
US5964367A (en) * | 1992-10-28 | 1999-10-12 | Mauser-Werke Gmbh | Lidded barrel |
US5722562A (en) * | 1996-03-28 | 1998-03-03 | C.A.P.S. Inc. | Tube cap |
US5941406A (en) * | 1996-07-19 | 1999-08-24 | Mauser-Werke Gmbh | Lidded barrel with barrel lid and clamping-ring closure |
US6401957B1 (en) * | 1998-05-28 | 2002-06-11 | Mauser-Werke Gmbh | Barrel with plastic lid |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060138141A1 (en) * | 2004-12-17 | 2006-06-29 | Stolzman Michael D | Reduced thickness cover |
US20090152271A1 (en) * | 2007-12-12 | 2009-06-18 | Kuzelka Kenneth J | High pressure drum cover |
US9156223B2 (en) | 2012-09-20 | 2015-10-13 | International Precision Components Corporation | Container with sidewall and closure |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: STOLZMAN, MICHAEL D., ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KUZELKA, KENNETH J.;GALVIN, TERRENCE;REEL/FRAME:016355/0557 Effective date: 20041214 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |