WO2011072185A1 - Système déflecteur de toiture - Google Patents

Système déflecteur de toiture Download PDF

Info

Publication number
WO2011072185A1
WO2011072185A1 PCT/US2010/059793 US2010059793W WO2011072185A1 WO 2011072185 A1 WO2011072185 A1 WO 2011072185A1 US 2010059793 W US2010059793 W US 2010059793W WO 2011072185 A1 WO2011072185 A1 WO 2011072185A1
Authority
WO
WIPO (PCT)
Prior art keywords
roof
gutter
holes
gutter cover
water
Prior art date
Application number
PCT/US2010/059793
Other languages
English (en)
Inventor
Stephen R. Ash
Marianne Y. Ash
Original Assignee
Ash Stephen R
Ash Marianne Y
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ash Stephen R, Ash Marianne Y filed Critical Ash Stephen R
Priority to US13/509,896 priority Critical patent/US8677694B2/en
Publication of WO2011072185A1 publication Critical patent/WO2011072185A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/076—Devices or arrangements for removing snow, ice or debris from gutters or for preventing accumulation thereof

Definitions

  • This invention relates to separation of water from debris and in particular to a roof deflector system where debris passes over a gutter cover and water passes under the gutter cover but not through the gutter cover except, if at all, proximate a contact line where the gutter cover engages the roof.
  • roofing materials can easily last more than twenty years, repelling rain, leaves and dirt.
  • gutters While gutters perform well their intended tasks, unfortunately they typically require frequent cleaning because the flow of water and size of the gutter and down spouts are not sufficient to remove leaves and other debris from the gutter. Thus, open gutters have typically required periodic cleaning, which can be a tedious and dangerous task.
  • leaves tend to stick in the mesh of the screens, creating water blockage and a poor appearance. Intermittently, leaves must be removed from the screens, and the screens must be opened or otherwise removed so that debris can be removed from the gutter.
  • Another general approach to gutter protection is by means of extending a solid cover over the gutter, and allowing water to enter through a much-reduced opening area.
  • This type of cover allows water to pass over the cover and then enter the gutter from a curved front end of the cover, taking advantage of surface tension of water on the cover. Leaves and other debris fall from the cover, missing the gutter entirely.
  • These covers have an upper edge that is placed under a shingle or the edge of the roof to assure that all the water reaching the cover goes over its surface. These covers have some water spillover problems and are prone to develop icicles in cold weather. They are also expensive to install, fragile and cannot be opened.
  • the invention is directed to a deflector system for separating water from debris.
  • the entire system involves a roof having a gutter extending along at least a portion of peripheral edges of the roof.
  • a gutter cover is secured to the gutter and extends to engage the roof along a contact line.
  • the gutter cover has a perforate surface, with the perforate surface comprising closely spaced and normally water impervious holes through the cover such that water does not flow through the holes unless the water is forced through the holes or attracted through the holes.
  • the gutter cover is hingedly secured to the gutter.
  • the holes are generally circular with a diameter of about one-eighth inch maximum.
  • the perforate surface extends across the gutter cover.
  • the perforate surface is only proximate the contact line.
  • the contact line forms an imperfect junction between an edge of the gutter cover and the roof, such that water flowing along the roof at the contact line flows through the contact line and beneath the gutter cover.
  • the imperfect junction comprises a substantially smooth roof surface and a perforate portion of the edge of the gutter cover.
  • the imperfect junction comprises a rough roof surface and a smooth edge of the gutter cover.
  • the imperfect junction comprises a combination of a rough roof surface and a perforate portion of the edge of the gutter.
  • Figure 1 is a side elevational illustration of a typical pitched roof having an eave gutter into which water flowing from the roof passes,
  • FIG. 2 is an elevational illustrational, similar to Figure 1 , but employing a gutter cover according to the invention
  • Figure 3 is a slightly enlarged view of a gutter having the gutter cover according to the invention, when the gutter cover has been rotated along its hinged edge to allow access into the gutter,
  • Figure 4 is an isometric view of one of one form of gutter cover according to the invention.
  • Figure 5 is a view of the gutter cover of Figure 4, when being installed on an eave gutter,
  • Figure 6 is an elevational illustration of a swale type of gutter at the edge of a pitched roof
  • FIG. 7 is a view similar to Figure 6, but employing the gutter cover according to the invention.
  • Figure 8 is a schematic elevational illustration showing the gutter cover according to the invention and depicting water flow
  • Figure 9 is a view similar to Figure 8, with the roof and water flow omitted, and showing a different means of attachment of the gutter cover to a gutter, and
  • Figure 10 is an enlarged view similar to Figure 8, with the gutter omitted, depicting water flow beneath and through the gutter cover with debris passing over the gutter cover. DESCRIPTION OF EXAMPLES EMBODYING
  • the invention is radically different from any known prior art screen or solid cover approach.
  • the invention consists of a deflector comprising a plate or gutter cover that is attached to the outer edge of a gutter, with the inner edge of the deflector resting on top of the roof, forming a slope downwardly from the contact line to the outer edge of the gutter.
  • the downward slope is on the order of 30 degrees, although it can be somewhat more or substantially less.
  • Water passing down the roof and under the gutter cover is counter-intuitive. It occurs because surface tension of water to the roof is stronger, due to the irregular roof surface, than the surface tension of water to the smooth gutter cover, and because the contact line between the gutter cover and the roof does not form a perfect seal.
  • the gutter cover when it is a perforated plate, actually repels water, since water normally cannot pass through the holes in the gutter cover because they are too small. This is because surface tension limits formation of drops on the underside of the small holes in the gutter cover, normally preventing water flow through the gutter cover.
  • water can be forced through the holes by increased pressure or by attraction proximate the contact line, where water beneath the gutter cover contacts the water in the holes proximate the contact line and draws water through the holes.
  • This flow is also advantageous since it helps move leaves and debris from the contact line, and after rain has ceased, the perforations in the gutter cover allow air passage to promote drying of the gutter. During dry periods, leaves and other debris on the roof that have reached the gutter cover pass over the gutter cover and fall away.
  • FIG. 1 illustrates a typical roof and gutter system 10.
  • the roof whose structure is not shown in detail, is capped by shingles or any other kind of roof surface 12, with the roof being pitched as illustrated. Water falling on the surface 12 passes downwardly by gravity into a gutter 14 with the gutter 14 being secured to the building facia 16 or otherwise held in place.
  • FIG 2 the same roof and gutter system 10 of Figure 1 is illustrated, with a gutter cover 20 according to the invention.
  • the gutter cover 20 is appropriately affixed to an outer lip 22 of the gutter 14, as explained below, and rests on the roof, on top of the surface 12.
  • the gutter cover 20 is hingedly secured to the outer lip 22. That can be by many means.
  • the gutter cover 20 can be secured by periodic tethers 24 at an outer edge 26 of the gutter cover 20, with the tethers 24 comprising wires, plastic lines such as fish line, rope, fasteners, or other similar attachment means.
  • the tethers 24 pass through appropriate holes (not illustrated) in the outer lip 22 and are secured to one another or to the outer lip 22, as appropriate. Because the tethers 24 are at the outer edge 26 and are flexible, the gutter cover 20 may thus be hingedly opened as shown in Figure 3.
  • hinge 28 Another means of affixing is with an actual hinge 28, shown schematically in Figure 9.
  • the hinge can be secured to the outer lip 22 by fasteners 30 or any other means, allowing rotational movement of the gutter cover 20.
  • Other means of hinged connection will be evident to those skilled in the art.
  • the gutter cover 20 has an inner edge 32 that rests on the roof surface 12. The nature of the inner edge 32 and its interaction with the roof surface 12 is described in further detail.
  • the gutter cover 20 includes a perforate surface 34.
  • the perforate surface 34 may cover the entire gutter cover 20, or may be just proximate the inner edge 32.
  • the perforate surface 34 comprises a series of closely spaced and normally water impervious holes 36, which are greatly exaggerated in Figures 2, 3 and 7 through 9 for illustrative purposes.
  • the holes are sufficiently small so that water normally flows on top of the gutter cover 20 and not through the holes 36 unless water is forced through the holes 36 or attracted through the holes 36, typically by contact with water thereunder. It has been found that circular holes with a diameter of about one eighth inch maximum, or smaller, serve this purpose.
  • the term "perforate surface” as used herein means a surface that is otherwise generally smooth, but includes the holes 36 therethrough. Also, while the holes 36 are preferably circular in cross section, other shapes may be used so long as they function as explained herein.
  • FIGS 6 and 7 illustrate the invention when employed in connection with a swale gutter 40.
  • Swale gutters 40 are made by cutting notches 42 in extending ceiling joists 44, and the roof includes typical shingles or another appropriate roof surface 42.
  • the extended joists 44 are covered with thin wood and metal, usually copper, to make a gutter of a width of a foot or more.
  • the gutter cover 20' is identical to that of the first form of the invention, except wider.
  • reference numerals for the elements of the gutter cover 20' are identical to those of the first form of the invention.
  • the inner edge 32 engages the roof along a contact line co-terminal with the inner edge 32 when on the roof.
  • the contact line is not a perfect seal, but just the opposite. It is sized to allow water to flow under the gutter cover 20, while leaves and other debris pass over the gutter cover 20. The contact line is therefore an imperfect junction between the inner edge 32 of the gutter cover 20 and the roof.
  • the imperfect junction can be formed in many fashions. If the roof surface is generally smooth, the imperfect junction can comprise a perforate portion of the edge 32, that perforate portion being formed in many different ways. One way is to simply cut the gutter cover 20 along a line of the holes 36. How ever that perforate portion of the edge 32 is formed, however, it is sized on the order of the holes 36.
  • Another way of forming the imperfect junction is to employ a rough roof surface and a smooth edge 32 of the gutter cover 20.
  • typical shingled roofs have a granular surface. That granular surface is sufficiently rough so that a smooth edge 32 of the gutter cover 20 resting on the roof forms an adequate imperfect junction.
  • Another means of forming the imperfect junction is a combination of both a rough roof surface and a perforate portion of the edge 32.
  • the edge 32 can be formed as described immediately above and impinge on a granular surface of a shingled roof, or other such imperfect surface.
  • Another means of forming an imperfect junction between a smooth roof and smooth gutter cover is to purposely create a gap of less that 1/8" at the line of contact between the roof surface and gutter cover by creating various projections or shapes in the gutter cover.
  • FIGs 8 and 10 illustrate the characteristics of the invention.
  • Water 46 flows down the roof, encountering the inner edge 32, which is also the contact line at the roof. Most of the water 46 flows under the inner edge 32, continuing down the roof and into the gutter 14. However, depending on the nature of the imperfect surface along the contact line, as well as the amount of water flowing on the roof, some water may flow past the inner edge 32 onto the top of the gutter cover 20. That water, while normally not able to flow through the holes 36, is attracted to water beneath the gutter cover 20, however, and is drawn through the perforate surface 34 proximate the inner edge 32.
  • the area 48 is defined as that portion of the gutter cover 20 where water flowing under the gutter cover 20 attracts water on the top of the gutter cover 20 by means of contact and surface tension. Any debris 50 that is traveling with the water, however, is far too large to enter the holes 36, and therefore, as illustrated in Figure 10, continues along the upper surface of the gutter cover 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

Cette invention concerne un système destiné à séparer l'eau des débris. Un pare-feuilles est fixé à une gouttière et il s'étend de sortie à venir en prise avec la partie supérieure du toit adjacente à la gouttière le long d'une ligne de contact. Le pare-feuilles peut avoir une surface perforée comprenant des orifices à espacement serré et normalement étanches à l'eau de sorte à ce que l'eau ne puisse pas s'écouler à travers les orifices à moins d'y être forcée ou d'être attirée à travers ceux-ci. La ligne de contact forme une jonction imparfaite entre le bord du pare-feuilles et le toit de sorte que l'eau s'écoule à travers la ligne de contact et en dessous du pare-feuilles.
PCT/US2010/059793 2009-12-10 2010-12-10 Système déflecteur de toiture WO2011072185A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/509,896 US8677694B2 (en) 2009-12-10 2010-12-10 Roof deflector system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28390309P 2009-12-10 2009-12-10
US61/283,903 2009-12-10

Publications (1)

Publication Number Publication Date
WO2011072185A1 true WO2011072185A1 (fr) 2011-06-16

Family

ID=44145927

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/059793 WO2011072185A1 (fr) 2009-12-10 2010-12-10 Système déflecteur de toiture

Country Status (2)

Country Link
US (1) US8677694B2 (fr)
WO (1) WO2011072185A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011028291A2 (fr) 2009-09-04 2011-03-10 Commercial Gutter, Inc. Système d'écartement de feuilles pour gouttière à treillis ondulé
US20140215929A1 (en) 2011-09-21 2014-08-07 Robert C. Lenney Raised arc rain gutter debris preclusion device
US20140069028A1 (en) * 2011-12-08 2014-03-13 Robert C. Lenney Gutter guard barier
US20150040488A1 (en) * 2013-08-07 2015-02-12 Gutterglove, Inc. Gutter Debris Preclusion Device with Multiple Manipulations and Patterns Thereof
CA3149045A1 (fr) 2014-02-12 2015-08-20 Robert C. Lenney Dispositif de preclusion de feuille a maillage ondule bidirectionnel autoportant
CA2891615A1 (fr) * 2014-05-16 2016-11-14 Anthony M. Iannelli Couvre-gouttiere maille
US11713580B2 (en) 2019-05-01 2023-08-01 Gutterglove, Inc. Single piece gutter guard with girder
US12018490B2 (en) 2019-05-01 2024-06-25 Gutterglove, Inc. Single piece gutter guard with truss
US11965338B2 (en) 2019-05-01 2024-04-23 Gutterglove, Inc. Gutter guard with truss
US11566428B2 (en) 2019-05-01 2023-01-31 Gutterglove, Inc. Gutter guard with girder
US11384544B2 (en) 2019-05-01 2022-07-12 Gutterglove, Inc. Gutter guard with irregular grooves
US11391047B2 (en) 2019-07-01 2022-07-19 Gutterglove, Inc. Stepped gutter guard

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US2841100A (en) * 1954-12-01 1958-07-01 Christine Moller Movable screen for eaves troughs
US3834091A (en) * 1973-06-14 1974-09-10 J Dugan Hinged gutter cover
US5406754A (en) * 1993-02-03 1995-04-18 Cosby; Lloyd N. Drain gutter debris guard and method of making

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US2841100A (en) * 1954-12-01 1958-07-01 Christine Moller Movable screen for eaves troughs
US3834091A (en) * 1973-06-14 1974-09-10 J Dugan Hinged gutter cover
US5406754A (en) * 1993-02-03 1995-04-18 Cosby; Lloyd N. Drain gutter debris guard and method of making

Also Published As

Publication number Publication date
US20120233931A1 (en) 2012-09-20
US8677694B2 (en) 2014-03-25

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