EP3581730A1 - Adjustable roof drain - Google Patents
Adjustable roof drain Download PDFInfo
- Publication number
- EP3581730A1 EP3581730A1 EP19275078.4A EP19275078A EP3581730A1 EP 3581730 A1 EP3581730 A1 EP 3581730A1 EP 19275078 A EP19275078 A EP 19275078A EP 3581730 A1 EP3581730 A1 EP 3581730A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- basin
- telescoping
- compression
- roof drain
- annular wall
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
- 230000006835 compression Effects 0.000 claims abstract description 62
- 238000007906 compression Methods 0.000 claims abstract description 62
- 230000037361 pathway Effects 0.000 claims description 4
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009428 plumbing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009133 cooperative interaction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Images
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
- E04D13/0404—Drainage on the roof surface
- E04D13/0409—Drainage outlets, e.g. gullies
-
- 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
- E04D13/0404—Drainage on the roof surface
- E04D13/0409—Drainage outlets, e.g. gullies
- E04D2013/0413—Strainers for drainage outlets
-
- 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
- E04D13/0404—Drainage on the roof surface
- E04D13/0409—Drainage outlets, e.g. gullies
- E04D2013/0436—Drainage outlets, e.g. gullies with sealing means
Definitions
- This invention relates to roof drainage systems and more particularly to an adjustable roof drain apparatus for use on flat roofs and low pitched roofs.
- Flat roofs require draining systems to prevent excessive accumulation of water from rain and melting snow and to thereby avoid the resulting structural loading that could cause a collapse of the roof.
- Building standards generally require that flat roofs include roof drains positioned to facilitate draining most water from the roof through a drainage plumbing system.
- Typical roof drains are installed on flat roofs by cutting a hole through the roof deck and installing a drain there through.
- the roof drain typically connects with drainage plumbing that carries the water away from the flat roof surface.
- Commonly used roof drains are generally installed using flashing or collar in combination with sealant or other waterproofing material to prevent leakage at the site of the drain installation.
- the open portion of the roof drain is typically covered by some form of grating or strainer to prevent the ingestion of large objects into the drain plumbing system.
- this strainer or grate takes the form of a hemispherical strainer to prevent or minimize the occurrence of obstruction of the roof drain through the accumulation of leaves and other debris that may accumulate on the roof.
- roof drains generally also include flange portions and/or clamping rings that secure the drain body to a top surface and a bottom surface of the roof deck.
- the distance between the top surface and bottom surface of a roof deck may vary based on the thickness of sheathing materials and insulation materials that form the roof deck, for example.
- a commonly used roof drain apparatus includes an adjustable sleeve so that flanges and/or clamping rings of the roof drain apparatus can abut the top surface and the bottom surface of the flat roof deck.
- a popular adjustable roof drain configuration includes a threaded sleeve portion that allows adjustment of the distance between the flanges and/or clamping rings to match the distances between the bottom surface and top surface of a flat roof deck.
- the commonly used roof drain 100 includes a basin portion 108 and a threaded basin height extension portion 105, which threadingly engageable a threaded collar 104.
- An O-ring 110 is disposed between the threaded basin height extension portion 105 and the threaded collar 104.
- the threaded collar 104 is attached by fasteners 109 to the basin portion 108.
- a clamp ring 101 is fastened to the threaded basin height extension portion 105 by fasteners such as hex bolts 107.
- a grated dome 102 for preventing leaves and debris from entering the roof drain 100 is removably attachable to the clamp ring 101.
- a compression gasket 106 is disposed between the compression ring 104 and the basin portion 108.
- the threaded basin height extension portion 105 permits adjustment from about 1 1 ⁇ 4 inches to about 4 inches between flange portions and accommodates varying insulation thickness up to about 2 3 ⁇ 4 inches.
- the adjustable roof drain apparatus shown in FIGURES 1A and 1B has been commonly used for many years and has been prone to leaking, particularly around the threaded portion.
- an adjustable roof drain for flat and low pitch roofs includes a basin portion and a telescoping basin extension portion.
- a compression gasket provides a seal between the basin portion and the telescoping basin extension portions of the roof drain.
- the shape of the compression gasket causes it to be pushed inwardly when compressed so that it seals against the telescoping extension portion to both seal the extension portion and lock it at a selected height.
- the seal provided by the compression gasket prevents leakage that commonly occurs in previously known threaded roof drains such as the commonly used roof drain 100 shown in FIGURE 1 .
- aspects of the present disclosure include an adjustable roof drain that does not include a threaded portion and is less prone to leaking than the previous standard roof drains.
- a roof drain 200 includes a basin portion 208, a telescoping basin height extension portion 205 slidingly engageable with the basin portion 208, and a compression ring 204 between the basin portion 208 and the basin height extension portion 205.
- the compression ring 204 includes a planer lower surface 221 and beveled inside diameter 211.
- the clamp ring 201 is fastened to the telescoping basin height extension portion 205 by fasteners such as hex bolts 207.
- a grate portion 202 for preventing leaves and debris from entering the roof drain 200 is removably attachable to the clamp ring 201.
- the grate portion 202 includes an upwardly extending body such as a cast dome, for example.
- the roof drain 200 also includes a compression gasket 206 between the compression ring 204 and the basin portion 208.
- the compression gasket 206 has a planer portion 217 abutting the planer lower surface 221 of the compression ring 204 and a raised lip portion 215.
- the raised lip portion 215 extends around an inside diameter of the compression gasket 206 and has a ramped surface 213 abutting the beveled inside diameter 211 of the compression ring 204.
- the inside diameter of the compression gasket 206 seals against the telescoping basin height extension portion 205.
- the compression gasket 206 may be made of neoprene, for example.
- the compression gasket 206 is made from 65 durometer neoprene.
- the roof drain includes a plurality of fasteners 209 coupling the compression ring 204 to the basin portion 208 such that tightening the fasteners 209 compresses the compression gasket 206 and urges the raised lip portion 215 inwardly against the telescoping basin height extension portion 205 to provide a seal between the telescoping basin height extension portion 205 and the basin portion 208.
- the beveled inside diameter 211 of the compression ring 204 engages the ramped surface 213 of the raised lip portion 215 such that urging the raised lip portion 215 inwardly by tightening the fasteners 209 locks the telescoping basin height extension portion 205 at a selected height relative to the basin portion 208.
- FIGURE 3A shows the compression gasket 206 installed between the compression ring 204 and basin portion 208 to lock the telescoping basin height extension portion 205 at a selected height relative to the basin portion 208.
- the basin portion 208 includes a first annular wall 231, a first flange 233 extending outwardly from the first annular wall 231, and a bottom surface 235 extending inwardly from the first annular wall 231.
- a drainage pathway 237 extends through the bottom surface 235 of the basin portion 208 and a neck portion 239 extends from the bottom surface 235 around the drainage pathway 237.
- the telescoping basin portion 205 includes a second annular wall 241 and a second flange 243 extending outwardly from the second annular wall 241.
- the second annular wall 241 fits inside the first annular wall 231 of the of the basin portion 208.
- FIGURE 3B is a detail view showing the cooperative interaction between the compression ring 204, compression gasket 206, basin portion 208 and basin height extension portion 205 as described above.
- FIGURE 4A shows an adjustable roof drain 200 in a fully extended configuration according to an aspect of the present disclosure.
- the basin height extension portion 205 is raised to a maximum height relative to the basin portion 208.
- FIGURE 4B shows the adjustable roof drain 200 in a fully retracted configuration according to an aspect of the present disclosure.
- the basin height extension portion 205 is lowered to a minimum height relative to the basin portion 208.
- an adjustable roof drain apparatus includes a telescoping basin height extension portion configured to be slidingly engageable with a basin portion, a compression ring configured to fit between the basin portion and the basin height extension portion, and a compression gasket configured to fit between the compression ring and the basin portion.
- the compression ring including a planer lower surface and beveled inside diameter.
- the compression gasket includes a planer portion abutting the planer lower surface of the compression ring and a raised lip portion.
- the raised lip portion extends around an inside diameter of the compression gasket and includes a ramped surface abutting the beveled inside diameter of the compression ring.
- the inside diameter of the compression gasket is configured for sealing against the telescoping basin height extension portion.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Gasket Seals (AREA)
Abstract
An adjustable roof drain for flat and low pitch roofs includes a basin portion and a telescoping basin extension portion. A compression gasket provides a seal between the basin portion and the telescoping basin extension portions of the roof drain. The shape of the compression gasket causes it to be pushed inwardly when compressed so that it seals against the telescoping extension portion to both seal the extension portion and lock it at a selected height.
Description
- This invention relates to roof drainage systems and more particularly to an adjustable roof drain apparatus for use on flat roofs and low pitched roofs.
- Commercial and industrial buildings are commonly constructed with flat or nearly flat roofs. Flat roofs require draining systems to prevent excessive accumulation of water from rain and melting snow and to thereby avoid the resulting structural loading that could cause a collapse of the roof. Building standards generally require that flat roofs include roof drains positioned to facilitate draining most water from the roof through a drainage plumbing system.
- Typical roof drains are installed on flat roofs by cutting a hole through the roof deck and installing a drain there through. The roof drain typically connects with drainage plumbing that carries the water away from the flat roof surface. Commonly used roof drains are generally installed using flashing or collar in combination with sealant or other waterproofing material to prevent leakage at the site of the drain installation. The open portion of the roof drain is typically covered by some form of grating or strainer to prevent the ingestion of large objects into the drain plumbing system. In typical roof drain structures this strainer or grate takes the form of a hemispherical strainer to prevent or minimize the occurrence of obstruction of the roof drain through the accumulation of leaves and other debris that may accumulate on the roof.
- These commonly used roof drains generally also include flange portions and/or clamping rings that secure the drain body to a top surface and a bottom surface of the roof deck. However, the distance between the top surface and bottom surface of a roof deck may vary based on the thickness of sheathing materials and insulation materials that form the roof deck, for example. To accommodate varying roof deck thicknesses, a commonly used roof drain apparatus includes an adjustable sleeve so that flanges and/or clamping rings of the roof drain apparatus can abut the top surface and the bottom surface of the flat roof deck. A popular adjustable roof drain configuration includes a threaded sleeve portion that allows adjustment of the distance between the flanges and/or clamping rings to match the distances between the bottom surface and top surface of a flat roof deck.
- An example of a commonly used roof drain having a threaded adjustable sleeve is described with reference to
FIGURES 1A and1B . The commonly usedroof drain 100 includes abasin portion 108 and a threaded basinheight extension portion 105, which threadingly engageable a threadedcollar 104. An O-ring 110 is disposed between the threaded basinheight extension portion 105 and the threadedcollar 104. The threadedcollar 104 is attached byfasteners 109 to thebasin portion 108. - A
clamp ring 101 is fastened to the threaded basinheight extension portion 105 by fasteners such ashex bolts 107. Agrated dome 102 for preventing leaves and debris from entering theroof drain 100 is removably attachable to theclamp ring 101. Acompression gasket 106 is disposed between thecompression ring 104 and thebasin portion 108. - The threaded basin
height extension portion 105 permits adjustment from about 1 ¼ inches to about 4 inches between flange portions and accommodates varying insulation thickness up to about 2 ¾ inches. - The adjustable roof drain apparatus shown in
FIGURES 1A and1B has been commonly used for many years and has been prone to leaking, particularly around the threaded portion. - According to aspects of the present disclosure, an adjustable roof drain for flat and low pitch roofs includes a basin portion and a telescoping basin extension portion. A compression gasket provides a seal between the basin portion and the telescoping basin extension portions of the roof drain. The shape of the compression gasket causes it to be pushed inwardly when compressed so that it seals against the telescoping extension portion to both seal the extension portion and lock it at a selected height. The seal provided by the compression gasket prevents leakage that commonly occurs in previously known threaded roof drains such as the commonly used
roof drain 100 shown inFIGURE 1 . - A better understanding of aspects of the present disclosure will be facilitated upon reference to the following detailed description when read in conjunction with the accompanying drawings wherein like reference characters refer to like parts throughout the drawings, in which:
-
FIGURE 1A illustrates a roof drain apparatus according to the PRIOR ART. -
FIGURE 1B is an exploded view drawing of the roof drain shown inFIGURE 1A . -
FIGURE 2A illustrates a roof drain apparatus according to an aspect of the present disclosure. -
FIGURE 2B is an exploded view drawing of the roof drain apparatus shown inFIGURE 2A . -
FIGURE 3A is cross sectional view drawing of a roof drain apparatus according to an aspect of the present disclosure. -
FIGURE 3B is a detail cross sectional view drawing of the compression ring and compression gasket shown inFIGURE 3A . -
FIGURE 4A is a cross sectional view drawing of the telescoping basin height extension portion of an adjustable roof drain apparatus in a fully extended configuration according to an aspect of the present disclosure. -
FIGURE 4B is a cross sectional view drawing of the telescoping basin height extension portion of an adjustable roof drain apparatus in a fully retracted configuration according to an aspect of the present disclosure. - Aspects of the present disclosure include an adjustable roof drain that does not include a threaded portion and is less prone to leaking than the previous standard roof drains.
- Referring to
FIGURE 2 andFIGURE 3B , aroof drain 200 according to an aspect of the present disclosure includes abasin portion 208, a telescoping basinheight extension portion 205 slidingly engageable with thebasin portion 208, and acompression ring 204 between thebasin portion 208 and the basinheight extension portion 205. Thecompression ring 204 includes a planerlower surface 221 and beveled inside diameter 211. - In an illustrative embodiment, the
clamp ring 201 is fastened to the telescoping basinheight extension portion 205 by fasteners such ashex bolts 207. Agrate portion 202 for preventing leaves and debris from entering theroof drain 200 is removably attachable to theclamp ring 201. In an illustrative embodiment thegrate portion 202 includes an upwardly extending body such as a cast dome, for example. - According to an aspect of the present disclosure, the
roof drain 200 also includes acompression gasket 206 between thecompression ring 204 and thebasin portion 208. Thecompression gasket 206 has aplaner portion 217 abutting the planerlower surface 221 of thecompression ring 204 and a raisedlip portion 215. The raisedlip portion 215 extends around an inside diameter of thecompression gasket 206 and has a rampedsurface 213 abutting the beveled inside diameter 211 of thecompression ring 204. According to an aspect of the present disclosure, the inside diameter of the compression gasket 206 seals against the telescoping basinheight extension portion 205. In an illustrative embodiment, thecompression gasket 206 may be made of neoprene, for example. In a particular embodiment, thecompression gasket 206 is made from 65 durometer neoprene. - According to another aspect of the present disclosure, the roof drain includes a plurality of
fasteners 209 coupling thecompression ring 204 to thebasin portion 208 such that tightening thefasteners 209 compresses thecompression gasket 206 and urges the raisedlip portion 215 inwardly against the telescoping basinheight extension portion 205 to provide a seal between the telescoping basinheight extension portion 205 and thebasin portion 208. - According to an aspect of the present disclosure, the beveled inside diameter 211 of the
compression ring 204 engages the rampedsurface 213 of the raisedlip portion 215 such that urging the raisedlip portion 215 inwardly by tightening thefasteners 209 locks the telescoping basinheight extension portion 205 at a selected height relative to thebasin portion 208. -
FIGURE 3A shows thecompression gasket 206 installed between thecompression ring 204 andbasin portion 208 to lock the telescoping basinheight extension portion 205 at a selected height relative to thebasin portion 208. Thebasin portion 208 includes a firstannular wall 231, a first flange 233 extending outwardly from the firstannular wall 231, and abottom surface 235 extending inwardly from the firstannular wall 231. Adrainage pathway 237 extends through thebottom surface 235 of thebasin portion 208 and aneck portion 239 extends from thebottom surface 235 around thedrainage pathway 237. - The
telescoping basin portion 205 includes a secondannular wall 241 and a second flange 243 extending outwardly from the secondannular wall 241. The secondannular wall 241 fits inside the firstannular wall 231 of the of thebasin portion 208. -
FIGURE 3B is a detail view showing the cooperative interaction between thecompression ring 204,compression gasket 206,basin portion 208 and basinheight extension portion 205 as described above. -
FIGURE 4A shows anadjustable roof drain 200 in a fully extended configuration according to an aspect of the present disclosure. In the fully extended configuration the basinheight extension portion 205 is raised to a maximum height relative to thebasin portion 208. -
FIGURE 4B shows theadjustable roof drain 200 in a fully retracted configuration according to an aspect of the present disclosure. In the fully retracted configuration the basinheight extension portion 205 is lowered to a minimum height relative to thebasin portion 208. - According to another aspect of the present disclosure an adjustable roof drain apparatus includes a telescoping basin height extension portion configured to be slidingly engageable with a basin portion, a compression ring configured to fit between the basin portion and the basin height extension portion, and a compression gasket configured to fit between the compression ring and the basin portion. The compression ring including a planer lower surface and beveled inside diameter. The compression gasket includes a planer portion abutting the planer lower surface of the compression ring and a raised lip portion. The raised lip portion extends around an inside diameter of the compression gasket and includes a ramped surface abutting the beveled inside diameter of the compression ring. The inside diameter of the compression gasket is configured for sealing against the telescoping basin height extension portion. The adjustable roof drain apparatus according to this aspect of the disclosure may be used with a previously configured or previously installed basin portion, for example.
- While particular embodiments have been disclosed herein in detail, this has been done by way of example for purposes of illustration only, and is not intended to be limiting with respect to the scope of the appended claims, which follow. In particular, it is contemplated that various substitutions, alterations, and modifications may be made without departing from the scope of the invention as defined by the claims. Other aspects, advantages, and modifications are considered to be within the scope of the following claims.
Claims (12)
- A roof drain, comprising:a basin portion;a telescoping basin height extension portion slidingly engageable with the basin portion;a compression ring between the basin portion and the basin height extension portion, the compression ring including a planer lower surface and beveled inside diameter; anda compression gasket between the compression ring and the basin portion, the compression ring gasket having a planer portion abutting the planer lower surface of the compression ring and a raised lip portion, the raised lip portion extending around an inside diameter of the compression gasket and having a ramped surface abutting the beveled inside diameter of the compression ring, the inside diameter of the compression gasket sealing against the telescoping basin height extension portion.
- The roof drain of claim 1, comprising:a plurality of fasteners coupling the compression gasket to the basin portion such that tightening the fasteners compresses the compression gasket and urges the raised lip portion inwardly against the telescoping basin height extension portion to provide a seal between the telescoping basin height extension portion and the basin portion;wherein the beveled inside diameter of the compression ring engages the ramped surface of the raised lip portion such that urging the raised lip portion inwardly by tightening the fasteners locks the telescoping basin height extension portion at a selected height relative to the basin portion.
- The roof drain of claim 1 or claim 2, wherein the basin portion comprises:a first annular wall;a first flange extending outwardly from the first annular wall;a bottom surface extending inwardly from the first annular wall;a drainage pathway extending through the bottom surface; anda neck portion extending from the bottom surface around the drainage pathway;and wherein the telescoping basin portion comprises:a second annular wall; anda second flange extending outwardly from the second annular wall;wherein the second annular wall fits inside the first annular wall of the of the basin portion.
- The roof drain of claim 3, further comprising:a clamp ring fastened to a top surface of the second flange; anda grate portion removably coupled to the clamp ring, wherein the grate portion comprises an upwardly extending body.
- The roof drain of claim 4, wherein the grate portion comprises a cast dome.
- The roof drain of any preceding claim, wherein the compression gasket is made of neoprene.
- An adjustable roof drain apparatus, comprising:a telescoping basin height extension portion configured to be slidingly engageable with a basin portion;a compression ring configured to fit between the basin portion and the basin height extension portion, the compression ring including a planer lower surface and beveled inside diameter; anda compression gasket configured to fit between the compression ring and the basin portion, the compression gasket having a planer portion abutting the planer lower surface of the compression ring and a raised lip portion, the raised lip portion extending around an inside diameter of the compression gasket and having a ramped surface abutting the beveled inside diameter of the compression ring, the inside diameter of the compression gasket configured for sealing against the telescoping basin height extension portion.
- The adjustable roof drain apparatus of claim 7, comprising:a plurality of fasteners coupling the compression ring to the basin portion such that tightening the fasteners compresses the compression gasket and urges the raised lip portion inwardly against the telescoping basin height extension portion to provide a seal between the telescoping basin height extension portion and the basin portion,wherein the beveled inside diameter of the compression ring is configured to engage the ramped surface of the raised lip portion such that urging the raised lip portion inwardly by tightening the fasteners locks the telescoping basin height extension portion at a selected height relative to the basin portion.
- The adjustable roof drain apparatus of claim 7 or claim 8, wherein the telescoping basin extension portion comprises:an annular wall; anda flange extending outwardly from the annular wall;wherein the annular wall fits inside a first annular wall of the of the basin portion.
- The adjustable roof drain apparatus of claim 9, further comprising a clamp ring fastened to a top surface of the flange.
- The adjustable roof drain apparatus of claim 10, further comprising a grate portion removably coupled to the clamp ring.
- The adjustable roof drain apparatus of any of claims 7 to 11, wherein the compression gasket is made of neoprene.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201862684376P | 2018-06-13 | 2018-06-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3581730A1 true EP3581730A1 (en) | 2019-12-18 |
Family
ID=66857848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19275078.4A Withdrawn EP3581730A1 (en) | 2018-06-13 | 2019-06-12 | Adjustable roof drain |
Country Status (3)
Country | Link |
---|---|
US (1) | US20190383019A1 (en) |
EP (1) | EP3581730A1 (en) |
CN (1) | CN210737930U (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12018489B2 (en) * | 2020-04-14 | 2024-06-25 | Zurn Water, Llc | Domed roof drain strainer assembly |
US20220025653A1 (en) * | 2020-07-24 | 2022-01-27 | Roofguard Manufacturing, Llc | Drain cover assembly |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2618356A (en) * | 1947-08-01 | 1952-11-18 | Josam Mfg Company | Water dam for flooding roofs or the like |
DE1271643B (en) * | 1964-02-19 | 1968-06-27 | Passavant Werke | Drain for flat roof or the like. |
FR2055140A5 (en) * | 1969-07-15 | 1971-05-07 | Monari Flaminio | |
DE202004004437U1 (en) * | 2004-03-20 | 2004-07-22 | Grumbach, Emil | Rubber seal for building roof gully has flat seal flange with bores to receive assembly screws and lips to accommodate assembly tolerances |
-
2019
- 2019-06-11 US US16/437,882 patent/US20190383019A1/en not_active Abandoned
- 2019-06-12 CN CN201920881966.9U patent/CN210737930U/en not_active Expired - Fee Related
- 2019-06-12 EP EP19275078.4A patent/EP3581730A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2618356A (en) * | 1947-08-01 | 1952-11-18 | Josam Mfg Company | Water dam for flooding roofs or the like |
DE1271643B (en) * | 1964-02-19 | 1968-06-27 | Passavant Werke | Drain for flat roof or the like. |
FR2055140A5 (en) * | 1969-07-15 | 1971-05-07 | Monari Flaminio | |
DE202004004437U1 (en) * | 2004-03-20 | 2004-07-22 | Grumbach, Emil | Rubber seal for building roof gully has flat seal flange with bores to receive assembly screws and lips to accommodate assembly tolerances |
Also Published As
Publication number | Publication date |
---|---|
CN210737930U (en) | 2020-06-12 |
US20190383019A1 (en) | 2019-12-19 |
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