Rolled roof vent and method of making same
AssigneeBenjamin Obdyke Incorporated
InventorsMichael S. Coulton, Geoffrey N. Ehrman, William F. Horvath, Kenneth L. Laubsch, Joseph DeMeo
Life of this patent
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Abstract
An improved roll-form vent for buildings comprises a sequentially thermoformed polymeric vent which provides multiple venting air flow paths between the interior of a building and ambient atmosphere. The vent includes projections extending from a web and a plurality of vent openings that cooperate with screening to bar entry into the building of water, insects and foreign matter. A method of making the vent includes steps of providing a web of material of indeterminate running length, heating the web, sequentially thermoforming the web, cooling the web and rolling the formed vent for storage, shipment and use.
Claims17
A roof vent, comprising:
- a continuous, indeterminate-length roll-form web, said web being composed of a series of sequentially-thermoformed integral longitudinal sections of thermoformable material, each section having a plurality of spacer elements projecting in spaced relation from said web for spacing said web from a roof when installed thereon, said elements being separated from one another lengthwise of said web to permit the web to be rolled lengthwise into a spiral roll during manufacture and unrolled lengthwise during installation, said elements being hollow and integral with the web and having a wall thickness which is thinner than said web as a result of having been drawn therefrom during thermoforming.
A continuous, indeterminate-length, roll-form roof vent, comprising a thermoformable web composed of a series of sequentially-thermoformed integral longitudinal sections, each section having a plurality of tapered spacer elements projecting in spaced relation from said web for spacing said web from a roof when installed thereon, said elements being separated from one another lengthwise of said web to permit the web to be rolled lengthwise into a spiral roll during manufacture and unrolled lengthwise during installation, said elements being hollow and integral with the web and having a wall thickness which is thinner than said web as a result of having been drawn therefrom during thermoforming, said elements being spaced laterally from one another widthwise of the web to define therebetween a pair of lengthwise extending channels disposed on opposite sides of a hinge extending lengthwise medially of said web, and means for preventing solid objects from traversing said channel while permitting gas to flow thereacross.
A continuous, indeterminate-length, roll-form roof vent, comprising a thermoformable web composed of a series of sequentially-thermoformed integral longitudinal sections, each section having a plurality of spacer elements projecting in spaced relation from said web for spacing said web from a roof when installed thereon, said elements being separated from one another lengthwise of said web to permit the web to be rolled lengthwise into a spiral roll during manufacture and unrolled lengthwise during installation, said elements being hollow and integral with the web and having a wall thickness which is thinner than said web as a result of having been drawn therefrom during thermoforming, said elements being spaced laterally from one another widthwise of the web to define therebetween a pair of lengthwise extending channels disposed on opposite sides of a lengthwise median of said web, and a series of hollow baffles disposed between laterally-adjacent elements to prevent solid objects from traversing directly across said channels while permitting gas to flow in a serpentine path thereacross.
A continuous, indeterminate-length, roll-form roof vent, comprising a thermoformable web composed of a series of sequentially-thermoformed integral longitudinal sections, each section having a plurality of spacer elements projecting in spaced relation from said web for spacing said web from a roof when installed thereon, said elements being separated from one another lengthwise of said web to permit the web to be rolled lengthwise into a spiral roll during manufacture and unrolled lengthwise during installation, said elements being hollow and integral with the web and having a wall thickness which is thinner than said web as a result of having been drawn therefrom during thermoforming, and a pair of flanges extending along lengthwise edges of said web alongside said spacer elements, said flanges having a series of apertures sized to afford flow of gas but to preclude entry of winged insects.
Dependencies are inferred from the claim text.