Patent ID: 8220474
Filing Date: 2012-07-17
Classification: B63J,F24F,Y02T,Y10S

Abstract:
1. A ventilator for ventilating a cover, said ventilator comprising: a dome comprising a dome portion and a depending shaft portion wherein said dome portion defines one of (a) a generally circular umbrella shape, and (b) a polygonal umbrella shape, wherein a center of said dome portion is the upper most portion and wherein an outer surface of said dome portion curves in a downward direction extending away from said center to a predefined distance thereby defining a dome-outer-perimeter; wherein said shaft portion extends downwardly from the center of said dome portion, said shaft portion defining a shaft interface suitably sized to receive a support structure; two ventilator plates, wherein each ventilator plate comprises two opposed surfaces defining a plate hole there through in the approximate center, said plate hole defining a shaft receiver suitably sized to receive said shaft portion, wherein said opposed surfaces extend away from said shaft receiver to a predefined point thereby defining an plate-outer-perimeter; wherein one side of each said ventilator plate defines a gripping-surface and the opposing side of said ventilator plate defines a gusset-surface; wherein each ventilator plate further defines a vent section disposed at least partially around said shaft receiver, said vent section defining at least one air passage, where said air passage extends beyond the gusset-surface thereby defining a vent height; wherein said gusset-surface defines a plurality of gusset supports extending perpendicularly from the gusset-surface to a predefined gusset-height that is one of (a) a equal to said vent height and (b) less than said vent height, and further extending outward from said vent section toward said plate-outer-perimeter; wherein said gripping-surface defines an annular gripping region wherein said annular gripping region defines an outer-gripping-diameter and an inter-gripping-diameter, and wherein a plurality of gripping-strips extend along said annular gripping region from the inter-gripping-diameter to the outer-gripping-diameter wherein each adjacent said gripping-strip is separated by a non-gripping-strip section; a seam-channel running from a first outer-gripping-diameter point and along said gripping-surface to a second outer-gripping-diameter point, wherein said seam-channel is free of gripping-strips; and a fastening device configured to mechanically associate the ventilator plates and dome so that they clamp together wherein the gripping regions of said ventilator plates are engaged each other, and the seam-channels of said ventilator plates are aligned for clamping the cover therebetween.