High strength, lightweight blow-molded plastic structures
DCFirst Claim
1. A table top constructed from blow-molded plastic and including a hollow interior portion formed during the blow-molding process, the blow-molded plastic table top comprising:
- a first surface;
a second surface that is disposed generally parallel to and spaced apart from the first surface, the first surface being separated from the second surface by a distance, the first and second surfaces enclosing at least a portion of the generally hollow interior of the blow-molded structure;
a plurality of depressions formed in the second surface and extending towards the first surface, each of the plurality of depressions including a sidewall and an end, each of the plurality of depressions having a height measured from the second surface to the end of the depression, the plurality of depressions being arranged into a generally uniform pattern that covers at least a substantial portion of the second surface in which a distance separating adjacent depressions is approximately equal to or less than three times the distance separating the first surface and the second surface.
1 Assignment
Litigations
0 Petitions
Accused Products
Abstract
Blow molded plastic structures are provided for use in various structures such as, but not limited to, tables, chairs, walls, backboards, storage bins, sports equipment and the like. The blow molded plastic structure has a first surface and a second surface extending between a first end and a second end and forming a chamber there between. A plurality of depressions is formed on the second surface and extends into the chamber. The depressions are usually unitary structures formed by a depression wall. Generally, the steeper the depression wall, the more strength is provided to the structure. In addition, where the plurality of depressions has a low profile and a greater density, increased strength is provided to the structure. The depressions may or may not be joined to the first surface.
132 Citations
30 Claims
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1. A table top constructed from blow-molded plastic and including a hollow interior portion formed during the blow-molding process, the blow-molded plastic table top comprising:
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a first surface; a second surface that is disposed generally parallel to and spaced apart from the first surface, the first surface being separated from the second surface by a distance, the first and second surfaces enclosing at least a portion of the generally hollow interior of the blow-molded structure; a plurality of depressions formed in the second surface and extending towards the first surface, each of the plurality of depressions including a sidewall and an end, each of the plurality of depressions having a height measured from the second surface to the end of the depression, the plurality of depressions being arranged into a generally uniform pattern that covers at least a substantial portion of the second surface in which a distance separating adjacent depressions is approximately equal to or less than three times the distance separating the first surface and the second surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 10, 11)
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8. A table top constructed from blow-molded plastic and including a hollow interior portion formed during the blow-molding process, the blow-molded plastic table top comprising:
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a first surface; a second surface that is disposed generally parallel to and spaced apart from the first surface, the first surface being separated from the second surface by a distance, the first and second surfaces enclosing at least a portion of the generally hollow interior of the blow-molded structure; a plurality of depressions formed in the second surface and extending towards the first surface, each of the plurality of depressions including a sidewall and an end, each of the plurality of depressions having a height measured from the second surface to the end of the depression, the plurality of depressions being arranged into a generally uniform pattern in which a distance separating adjacent depressions is generally equal to or less than two times the distance separating the first surface and the second surface.
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9. A table top constructed from blow-molded plastic and including a hollow interior portion formed during the blow-molding process, the blow-molded plastic table top comprising:
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a first surface; a second surface that is disposed generally parallel to and spaced apart from the first surface, the first surface being separated from the second surface by a distance, the first and second surfaces enclosing at least a portion of the generally hollow interior of the blow-molded structure; a plurality of depressions formed in the second surface and extending towards the first surface, each of the plurality of depressions including a sidewall and an end, each of the plurality of depressions having a height measured from the second surface to the end of the depression, the plurality of depressions being arranged into a generally uniform pattern in which a distance separating adjacent depressions is generally equal to or less than the distance separating the first surface and the second surface.
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12. A portion of a table comprising:
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a table top constructed from blow-molded plastic and including a generally hollow interior portion that is formed during the blow-molding process, the table top including an upper surface, a lower surface and a thickness measured from the upper surface to the lower surface; and a plurality of depressions integrally formed in the lower surface of the table top as part of a unitary, one-piece structure, the plurality of depressions being arranged into a generally uniform pattern that covers at least a substantial portion of the lower surface of the table top, each of the plurality of depressions including an end that is disposed towards the upper surface of the table top and is sized and configured to help support the upper surface of the table top, each adjacent depression of the plurality of depressions being separated by a distance that is generally equal to or less than three times the thickness of the table top. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A portion of a table comprising:
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a table top constructed from blow-molded plastic and including a generally hollow interior portion that is formed during the blow-molding process, the table top including an upper surface, a lower surface and a thickness measured from the upper surface to the lower surface; a plurality of depressions integrally formed in the lower surface of the table top as part of a unitary, one-piece structure, the plurality of depressions being arranged into a generally uniform pattern that covers at least a substantial portion of the lower surface of the table top, each of the plurality of depressions including an end that is disposed towards the upper surface of the table top and is sized and configured to help support the upper surface of the table top, each adjacent depression of the plurality of depressions being separated by a distance that is generally equal to or less than two times the thickness of the table top.
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19. A portion of a table comprising:
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a table top constructed from blow-molded plastic and including a generally hollow interior portion that is formed during the blow-molding process, the table top including an upper surface, a lower surface and a thickness measured from the upper surface to the lower surface; a plurality of depressions integrally formed in the lower surface of the table top as part of a unitary, one-piece structure, the plurality of depressions being arranged into a generally uniform pattern that covers at least a substantial portion of the lower surface of the table top, each of the plurality of depressions including an end that is disposed towards the upper surface of the table top and is sized and configured to help support the upper surface of the table top, each adjacent depression of the plurality of depressions being separated by a distance that is generally equal to or less than the thickness of the table top.
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20. A portion of a table comprising:
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a table top constructed from blow-molded plastic and including a generally hollow interior portion formed during the blow-molding process, the table top including an upper surface, a lower surface and a thickness measured from the upper surface to the lower surface; a plurality of depressions integrally formed in the lower surface of the table top as part of a unitary, one-piece structure, the plurality of depressions having a generally uniform configuration and being arranged into a generally uniform pattern that covers at least a substantial portion of the lower surface of the table top, the plurality of depressions including a generally consistent spacing between adjacent depressions, each of the plurality of depressions including an end that is disposed towards the upper surface of the table top and is sized and configured to help support the upper surface of the table top, each of the plurality of depressions having a height generally measured from the lower surface to the end of the depression, each adjacent depression of the plurality of depressions being separated by a distance that is generally equal to or less than three times the thickness of the table top. - View Dependent Claims (21, 22)
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23. A table top comprising:
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a table top constructed from blow-molded plastic and including a generally hollow interior portion formed during the blow-molding process, the table top including an upper surface, a lower surface and a thickness measured from the upper surface to the lower surface; and a plurality of depressions integrally formed in the lower surface of the table top as part of a unitary, one-piece structure, the plurality of depressions having a generally uniform configuration and being arranged into a generally uniform pattern that covers at least a substantial portion of the lower surface of the table top, the plurality of depressions including a generally consistent spacing between adjacent depressions, each of the plurality of depressions including an end that is disposed towards the upper surface of the table top and is sized and configured to help support the upper surface of the table top, each of the plurality of depressions having a height generally measured from the lower surface to an end of the depression, each adjacent depression of the plurality of depressions being separated by a distance that is generally equal to or less than two times the thickness of the table top.
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24. A table top comprising:
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a table top constructed from blow-molded plastic and including a generally hollow interior portion formed during the blow-molding process, the table top including an upper surface, a lower surface and a thickness measured from the upper surface to the lower surface; a plurality of depressions integrally formed in the lower surface of the table top as part of a unitary, one-piece structure, the plurality of depressions having a generally uniform configuration and being arranged into a generally uniform pattern that covers at least a substantial portion of the lower surface of the table top, the plurality of depressions including a generally consistent spacing between adjacent depressions, each of the plurality of depressions including an end that is disposed towards the upper surface of the table top and is sized and configured to help support the upper surface of the table top, each of the plurality of depressions having a height generally measured from the lower surface to an end of the depression, each adjacent depression of the plurality of depressions being separated by a distance that is generally equal to or less than the thickness of the table top.
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25. A portion of a table comprising:
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a table top constructed from blow-molded plastic and including a generally hollow interior portion that is formed during the blow-molding process, the table top including an upper surface, a lower surface and a thickness measured from the upper surface to the lower surface; and a plurality of depressions integrally formed in the lower surface of the table top as part of a unitary, one-piece structure, the plurality of depressions being arranged into a generally uniform pattern that covers at least a substantial portion of the lower surface of the table top, each adjacent depression of the plurality of depressions being separated by a distance that is generally equal to or less than three times the thickness of the table top.
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26. A portion of a table comprising:
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a table top constructed from blow-molded plastic and including a generally hollow interior portion that is formed during the blow-molding process, the table top including an upper surface, a lower surface and a thickness measured from the upper surface to the lower surface; a plurality of depressions integrally formed in the lower surface of the table top as part of a unitary, one-piece structure, the plurality of depressions being arranged into a generally uniform pattern that covers at least a substantial portion of the lower surface of the table top, each adjacent depression of the plurality of depressions being separated by a distance that is generally equal to or less than two times the thickness of the table top.
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27. A portion of a table comprising:
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a table top constructed from blow-molded plastic and including a generally hollow interior portion that is formed during the blow-molding process, the table top including an upper surface, a lower surface and a thickness measured from the upper surface to the lower surface; a plurality of depressions integrally formed in the lower surface of the table top as part of a unitary, one-piece structure, the plurality of depressions being arranged into a generally uniform pattern that covers at least a substantial portion of the lower surface of the table top, each adjacent depression of the plurality of depressions being separated by a distance that is generally equal to or less than the thickness of the table top.
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28. A portion of a table comprising:
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a table top constructed from blow-molded plastic and including a generally hollow interior portion formed during the blow-molding process, the table top including an upper surface, a lower surface and a thickness measured from the upper surface to the lower surface; a plurality of depressions integrally formed in the lower surface of the table top as part of a unitary, one-piece structure, the plurality of depressions having a generally uniform configuration and being arranged into a generally uniform pattern that covers at least a substantial portion of the lower surface of the table top, the plurality of depressions including a generally consistent spacing between adjacent depressions, each of the plurality of depressions including an end that is disposed towards the upper surface of the table top and is sized and configured to help support the upper surface of the table top so that the upper surface of the table top has generally uniform strength and structural integrity, each of the plurality of depressions having a height generally measured from the lower surface to the end of the depression, each adjacent depression of the plurality of depressions being separated by a distance that is generally equal to or less than three times the thickness of the table top.
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29. A table top comprising:
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a table top constructed from blow-molded plastic and including a generally hollow interior portion formed during the blow-molding process, the table top including an upper surface, a lower surface and a thickness measured from the upper surface to the lower surface; and a plurality of depressions integrally formed in the lower surface of the table top as part of a unitary, one-piece structure, the plurality of depressions having a generally uniform configuration and being arranged into a generally uniform pattern that covers at least a substantial portion of the lower surface of the table top, the plurality of depressions including a generally consistent spacing between adjacent depressions, each of the plurality of depressions including an end that is disposed towards the upper surface of the table top and is sized and configured to help support the upper surface of the table top so that the upper surface of the table top has generally uniform strength and structural integrity, each of the plurality of depressions having a height generally measured from the lower surface to an end of the depression, each adjacent depression of the plurality of depressions being separated by a distance that is generally equal to or less than two times the thickness of the table top.
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30. A table top comprising:
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a table top constructed from blow-molded plastic and including a generally hollow interior portion formed during the blow-molding process, the table top including an upper surface, a lower surface and a thickness measured from the upper surface to the lower surface; a plurality of depressions integrally formed in the lower surface of the table top as part of a unitary, one-piece structure, the plurality of depressions having a generally uniform configuration and being arranged into a generally uniform pattern that covers at least a substantial portion of the lower surface of the table top, the plurality of depressions including a generally consistent spacing between adjacent depressions, each of the plurality of depressions including an end that is disposed towards the upper surface of the table top and is sized and configured to help support the upper surface of the table top so that the upper surface of the table top has generally uniform strength and structural integrity, each of the plurality of depressions having a height generally measured from the lower surface to an end of the depression, each adjacent depression of the plurality of depressions being separated by a distance that is generally equal to or less than the thickness of the table top.
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Specification