Flow reducing overlying panel and method
First Claim
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1. An overlying panel for mounting on a structure, comprising:
- a panel body having an upper end, a lower end and a top surface extending between said upper end and said lower end, said body panel having a primary flow direction for a liquid substantially from said upper end to said lower end, and an array of projections on said top surface, said projections each having an edge transverse said primary flow direction, whereby each said edge creates turbulence in said liquid to increase drag and thereby reduce said velocity of said flow of said liquid, and each said projection grips ice and snow on said top surface.
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Abstract
A panel includes a sheet of material and an array of spaced projections on the sheet. The projections are cut and folded from the sheet, cast or molded. The projections create turbulence in drainage across the sheet, increasing drag and reducing flow velocity. The panel is mounted in a roof valley, along roof eaves above the rain gutters or anywhere that excess drainage flow velocity can create a problem. The panel is also an improved snow and ice guard for a roof.
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Citations
25 Claims
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1. An overlying panel for mounting on a structure, comprising:
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a panel body having an upper end, a lower end and a top surface extending between said upper end and said lower end, said body panel having a primary flow direction for a liquid substantially from said upper end to said lower end, and an array of projections on said top surface, said projections each having an edge transverse said primary flow direction, whereby each said edge creates turbulence in said liquid to increase drag and thereby reduce said velocity of said flow of said liquid, and each said projection grips ice and snow on said top surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An overlying panel for mounting on a structure, comprising:
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a panel body of sheet metal for drainage of a liquid, said panel body having an upper end, a lower end and a top surface extending between said upper end and said lower end, said body panel having a primary flow direction for said liquid substantially from said upper end to said lower end, and an array of projections on said top surface, each projection being cut from a rectangular shape having a top end, a bottom end and spaced sides with said bottom end and said sides being cut in said panel body, said rectangle being folded along said top end away from said panel body, and said rectangle being creased between said top end and bottom end back toward said panel body so that said projection has a triangular shape side view, an opening in said panel body between said bottom end and said panel body, and a sharp edge transverse said flow, said array including a plurality of vertically spaced horizontal rows of said projections with a space between adjacent said projections, said projections being staggered such that a said projection in a said row is aligned with said spaces between said projections in adjacent said rows, whereby each said edge creates turbulence in said liquid to increase drag and thereby reduce said velocity of said flow of said liquid, and each said projection grips ice and snow on said top surface.
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16. A method of reducing flow velocity of water having a primary flow direction on a roof, comprising the steps of:
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providing a panel of material having a top surface, creating an array of spaced projections on said top surface, said projections each having an edge, and applying said panel to said roof with said edges transverse said primary flow direction, whereby each said edge creates turbulence in said liquid to increase drag and thereby reduce said velocity of said flow of said liquid, and each said projection grips ice and snow on said panel. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A method of reducing flow velocity of water in a roof valley on a roof, said water having a primary flow direction down said valley, comprising the steps of:
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providing a panel of sheet metal having a top surface creating an array of spaced, staggered rows of spaced projections on said top surface, each said projection having a rectangular shape with a bottom end, a top end and spaced sides, said creating including cutting said bottom end and said spaced sides in said panel and folding said projection away from said panel along said top end, and thereby creating an opening in panel for each said projection, and applying said panel to said roof valley with said sides transverse said primary flow direction, whereby said projections generate turbulence in said water and thereby reduce said flow velocity.
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25. A method of reducing flow velocity of water having a primary flow direction on a roof, comprising the steps of:
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providing a panel of sheet metal having a top surface creating an array of spaced, staggered rows of spaced projections on said top surface, each said projection having a rectangular shape with a bottom end, a top end and spaced sides, said creating including cutting said bottom end and said spaced sides in said panel and folding said projection away from said panel along said top end, and thereby creating an opening in panel for each said projection, and applying said panel to said roof above a rain gutter with said sides transverse said primary flow direction, whereby said projections generate turbulence in said water and thereby reduce said flow velocity.
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Specification