Corrugated polymeric zigzag sheet for greenhouse roof structures
First Claim
Patent Images
1. A sheet structure, comprising:
- a pair of corrugated sheets formed in a zigzag pattern, said pair comprising an upper sheet and a lower sheet; and
each said pair of corrugated sheets further including a flat portion disposed at selected intervals between individual zigzags;
a spacer element disposed between corresponding flat portions of said upper and lower sheets; and
securing means for affixing said pair of corrugated sheet to a support member, at one or more of said flat portions, said securing means extending through said spacer element and said corresponding flat portions of said upper and lower sheets;
wherein said flat portions of said upper sheet are aligned with corresponding flat portions of said lower sheet so as to maintain said upper and lower sheets in a double wall configuration.
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Accused Products
Abstract
A sheet structure includes a pair of corrugated sheets formed in a zigzag pattern, the pair comprising an upper sheet and a lower sheet. In an exemplary embodiment, each of the pair of corrugated sheets further includes a flat portion disposed at selected intervals between individual zigzags. The flat portions of the upper sheet are aligned with corresponding flat portions of the lower sheet so as to maintain the upper and lower sheets in a double wall configuration.
63 Citations
20 Claims
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1. A sheet structure, comprising:
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a pair of corrugated sheets formed in a zigzag pattern, said pair comprising an upper sheet and a lower sheet; and
each said pair of corrugated sheets further including a flat portion disposed at selected intervals between individual zigzags;
a spacer element disposed between corresponding flat portions of said upper and lower sheets; and
securing means for affixing said pair of corrugated sheet to a support member, at one or more of said flat portions, said securing means extending through said spacer element and said corresponding flat portions of said upper and lower sheets;
wherein said flat portions of said upper sheet are aligned with corresponding flat portions of said lower sheet so as to maintain said upper and lower sheets in a double wall configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A roof structure, comprising:
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a first corrugated, light-transmitting sheet formed in a zigzag pattern, said first corrugated sheet further including at least one flat portion disposed at selected intervals between individual zigzag;
a second corrugated, light-transmitting sheet formed in a zigzag pattern, said second corrugated sheet also including a flat portion disposed at selected intervals between individual zigzags;
said first and said second sheets arranged into an upper sheet and a lower sheet wherein said flat portions of said upper sheet are aligned with corresponding flat portions of said lower sheet so as to maintain said upper and lower sheets in a double wall configuration;
a spacer element disposed between corresponding flat portions of said upper and lower sheets; and
securing means for affixing said first corrugated sheet to a roof support member, at one or more of said flat portions, said securing means extending through said spacer element and said corresponding flat portions of said upper and lower sheets. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification