US3731952A - Flashing for roof vent pipes - Google Patents

Flashing for roof vent pipes Download PDF

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Publication number
US3731952A
US3731952A US00222893A US3731952DA US3731952A US 3731952 A US3731952 A US 3731952A US 00222893 A US00222893 A US 00222893A US 3731952D A US3731952D A US 3731952DA US 3731952 A US3731952 A US 3731952A
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United States
Prior art keywords
flashing
portions
pipe
stepped
shield member
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Expired - Lifetime
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US00222893A
Inventor
B Elwart
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MULTI FLASHINGS Inc A CORP OF MI
MULTI-FLASHINGS Inc
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ROYAL SEVEN Inc
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Assigned to MULTI FLASHINGS INC., A CORP OF MI reassignment MULTI FLASHINGS INC., A CORP OF MI ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ROYAL SEVEN, INC.
Assigned to MULTI-FLASHINGS, INC. reassignment MULTI-FLASHINGS, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ROYAL SEVEN, INC., A MI. CORP..
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    • 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
    • E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
    • E04D13/147—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs
    • E04D13/1473—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs specially adapted to the cross-section of the parts extending above the roof
    • E04D13/1476—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs specially adapted to the cross-section of the parts extending above the roof wherein the parts extending above the roof have a generally circular cross-section

Definitions

  • the present invention relates to devices for retaining and sealing roof vent pipes and the like of different diameters where they extend through the roof to prevent water leakage at their juncture with the roof.
  • Flashings previously used have sometimes been made of rubber and the like materials which are intended to stretch around the vent pipe for sealing thereof, but they are usually not satisfactory due to their inability to withstand weather and to conform to expansions and contractions of the vent pipe and other roof structure over protracted periods.
  • Other ordinary constructions utilize metal flashings at the juncture of the vent pipe and the roof, with sealing being provided by soldering or caulking around the joint of the flashing with the vent pipe, but these too often crack and leak water and rust out with time. Flashings customarily are made in sizes to fit vent pipes of particular diameters and since vent pipes usually come in different diameters building contractors must maintain a supply of all sizes of flashings.
  • U. S. Pat. No. 3,602,530 has for its primary object the formation of a vent pipe flashing which is readily adaptable to various pipe sizes, the flashing having a plurality of substantially concentric cylindrical stepped portions, such that the inner or smaller diameter stepped portion may be readily severed from the flashing to expose another larger stepped portion readily fitting the particular pipe and to form a seal around the periphery of the vent pipe even when the same has minor imperfections.
  • the flashing also has the capability of conforming readily to varying roof pitches and is readily adaptable to expansion and contraction of the roof structure.
  • the embodiment of the present invention constitutes an improvement in which separate O-ring seals are carried adjacent the stepped portions internally adjacent thereof for close fitting to the vent pipe when the flashing is installed, providing a yet more effective and permanent seal between the flashing and the vent pipe.
  • FIG. I is a fragmentary perspective view ola rooftop showing a flashing of a preferred embodiment of the present invention installed around a vent pipe;
  • FIG. 2 is a top view of the vent pipe and flashing of FIG. 1;
  • FIG. 3 is a vertical cross-sectional view taken through the rooftop flashing of FIG. 2 and indicating in phantom lines vent pipes of different diameters extending therethrough;
  • FIG. 4 is an enlarged fragmentary cross-sectional view of a portion of the flashing illustrating more in detail the location of the cutting line to remove the top flange or rim of the flashing for enlargement of the diameter of the opening;
  • FIG. 5 is another perspective view of the flashing of the present invention illustrating the top or inner flange or rim of the flashing being removed to accommodate a vent pipe of larger diameter.
  • a rooftop 10 has a conventional vent pipe 12 extending vertically therethrough and may also have a conventional vent pipe cap, which is here omitted for clarity.
  • the improved structure comprises a flashing 146 which peripherally engages the vent pipe 12, and has a flat base 166 adapted to be secured to the rooftop 10, as shown, by any means such as nails or the like.
  • the flashing 146 comprises a substantially frusto-conically shaped body 118G extending from the flat base 166 at an oblique angle relative to the plane of the flat base 166.
  • the upper rim is formed, as shown, into a pair of concentric cylindrical stepped portions 96 and 98 connected to each other and to the body of the flashing by connecting ridge portions 96a and 98a respectively.
  • the uppermost portion 96 is dimensioned so that its inner surface will conform substantially with the outer diameter surface of a vent pipe 12, in this case being a conventional three inch OD.
  • each of the portions 96, 98 which are concentric with each other around a center line X of the flashing, is provided with an O-ring or other similar sealing means 102 and 103 respectively which are of slightly smaller inner diameter than the respective vent pipes 1.2 and 12A and are compressible to a degree such that the O-ring seals will each conform readily to the shape of the respective vent pipe including its minor imperfections and irregularities to maintain a satisfactory water seal between the vent pipe and the flashing inner surface.
  • the O-ring seals 102 and 103 may be bonded to the inside of the portions 96, 98 to securely keep them in place, or could be otherwise formed integrally with the material of the flashing.
  • a plurality of circular corrugations 104 extend around the annular portion (respective to the roof line) of the body 186 of the flashing 146 so that it will flex within limits to conform the base 16G to rooftops of varying pitches, and also to adapt to contractions and expansions of the roof structure.
  • the top portion 97 of the body 186 of the flashing is cut off along the line 100 (FIG. 4) just below the uppermost portion 96.
  • the cutting line 100 is on a plane normal to the central axis X" (FIG. 3) of the flashing and thus assures concentric installation of the larger vent pipe 12 in the flashing around the central axis X.” It will be seen in FIG.
  • an axial cylindrical ridge portion 99 remains as a continuity of the inner portion 98 and forming together therewith a retaining means for the O- ring 103, holding the O-ring in place as it is compressed on the flashing being installed downwardly over the vent pipe.
  • the flashing is formed to have a somewhat thinner periphery along the plane of the line 100 for easier cutting.
  • the flashing 14G is installed on the rooftop in such a fashion that a portion of the flat base 166 is extended underneath the shingles 11 and the remaining portion lies on top of the shingles 11.
  • the particular securement of the flashing to the rooftop 10 is immaterial and forms no part of the present invention.
  • the flashing 140 may be a stamping made from sheet metal, but is preferably molded of a suitable plastic or any other suitable and easily formable sheet material.
  • vent pipe flashing structure having an expanded versatility.
  • the flashing is made of plastic, polypropelene or polyethylene may be used, which have the properties required to conform sufficiently to the imperfections in the pipe and retain the shape of the pipes imperfections and irregularities at all times thereafter, while yet being weather resistant, tough and durable, as well as being slightly flexible for the purpose described.
  • Multiple size usage of the singleflashing structure reduces the contractors inventory of flashings, and the flexible and slightly deformable properties of the plastic, particularly in conjunction with the use of the O-ring seals as shown, eliminates the necessity for caulking and prevents thermal expansion and contraction of the vent pipe from cracking the flashing or breaking the seal.
  • a flashing for rooftop vent pipes and the like of different diameters comprising:
  • a substantially frusto-conical shield member for enclosing a portion of said vent pipes upstanding from said rooftop and having a base adapted to engage the rooftop surface, said shield member having a plurality of stepped upper portions of varying diameters dimensioned to engage the outer diameters of differently sized vent pipes, at least said upper portions being of a material having the properties of deforming slightly to conform to the shape of said pipes including minor imperfections thereof, the smaller of said portions being severable for adapting said shield to selected vent pipes, and
  • sealing rings fitting within portions of said shield immediately below and of larger diameters than said stepped upper portions, said sealing rings having slightly smaller inner diameters than the adjacent upper portions for effectively sealing said pipes relative to said shield member.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Gasket Seals (AREA)

Abstract

A flashing for roof vent pipes and the like in which a frustoconical shield member surrounding the vent pipe has an enlarged flat base flange engaging the rooftop surface and an upper portion provided with a plurality of concentric cylindrical stepped portions selectively diametered to fit varying pipe sizes, the smaller stepped portion being readily severed from the remainder so that the next larger stepped portion will fit a larger pipe, with O-ring seals having slightly smaller inner diameters than the inner diameters of the vent pipe engaging stepped portions being fitted adjacent thereto for sealing engagement with the vent pipe. At least a portion of the shield member has circular corrugations extending therearound so that the shield will flex to conform with slight differences in roof pitches, as well as to provide flexing required by expansion and contraction of the building structure.

Description

United States Patent 1 1 1111 3,731,952
Elwart 1 1 May 8, 1973 [541 FLASHING FOR ROOF VENT PIPES 1,307,295 9/1962 France ..285/l77 75 I t: B .EI t,F dl,M' h. 1 men or J war em a e Primary Examiner-Thomas F. Callaghan [73] Assignee: Royal Seven Inc., Ferndale, Mich. AttorneyR0bert C. Hauke et al.
[22] Flled: Feb. 2, 1972 ABSTRACT [2]] Appl' 222893 A flashing for roof vent pipes and the like in which a frusto-conical shield member surrounding the vent [52] U.S.Cl. ..285/3, 285/44, 285/]77 p p has an enlarged fl base fl ng ng ging he 51 Int. Cl. ..E04d 13/14 rooftop Surface and an pp Portion Provided with a [58] Field of Search ..285/4, 3, 44, 43, plurality of concentric cylindrical pp Portions 285/42177235 selectively diametered to fit varying pipe sizes, the smaller stepped portion being readily severed from the [56] References Cited remainder so that the next larger stepped portion will fit a larger pipe, with O-ring seals having slightly UNITED STATES PATENTS smaller inner diameters than the inner diameters of the vent pipe engaging stepped portions being fitted Elvlllart adjacent thereto for Sealing engagflment the vent 2,025,067 12/1935 M1 er 5/17 p p At least a portion of the shield member has cip 2,985,465 5/1961 Church ..285/43 X l h d h h 1 844 870 2 1932 Helling ..285/43 coirugat'ons mg 7 t at 35214l4 7/1970 Malissa 285/43 X shield will flex to conform w1th slight differences in FOREIGN PATENTS OR APPLICATIONS roof pitches, as well as to provide flexing required by expansion and contraction of the building structure.
7 Claims, 5 Drawing Figures FLASHING FOR ROOF VENT PIPES REFERENCE TO RELATED PATENT The present application constitutes an improvement over my issued U. S. Pat. No. 3,602,530 dated Aug. 31, 1971.
BACKGROUND OF THE INVENTION The present invention relates to devices for retaining and sealing roof vent pipes and the like of different diameters where they extend through the roof to prevent water leakage at their juncture with the roof.
DESCRIPTION OF THE PRIOR ART The following patents are known: U. S. Re No.
26,026, and U. S. Pat. Nos. 558,025, 580,515, 1,000,506, 1,258,884, 1,317,446, 1,558,503, 2,244,280, 2,985,465, 3,098,663, 3,151,894,
3,163,101 and Belgium Pat. No. 511,895, as well as my own U. S. Pat. No. 3,602,530.
Flashings previously used have sometimes been made of rubber and the like materials which are intended to stretch around the vent pipe for sealing thereof, but they are usually not satisfactory due to their inability to withstand weather and to conform to expansions and contractions of the vent pipe and other roof structure over protracted periods. Other ordinary constructions utilize metal flashings at the juncture of the vent pipe and the roof, with sealing being provided by soldering or caulking around the joint of the flashing with the vent pipe, but these too often crack and leak water and rust out with time. Flashings customarily are made in sizes to fit vent pipes of particular diameters and since vent pipes usually come in different diameters building contractors must maintain a supply of all sizes of flashings.
SUMMARY OF THE INVENTION My invention described and shown in U. S. Pat. No. 3,602,530 has for its primary object the formation of a vent pipe flashing which is readily adaptable to various pipe sizes, the flashing having a plurality of substantially concentric cylindrical stepped portions, such that the inner or smaller diameter stepped portion may be readily severed from the flashing to expose another larger stepped portion readily fitting the particular pipe and to form a seal around the periphery of the vent pipe even when the same has minor imperfections. The flashing also has the capability of conforming readily to varying roof pitches and is readily adaptable to expansion and contraction of the roof structure.
The embodiment of the present invention constitutes an improvement in which separate O-ring seals are carried adjacent the stepped portions internally adjacent thereof for close fitting to the vent pipe when the flashing is installed, providing a yet more effective and permanent seal between the flashing and the vent pipe.
DESCRIPTION OF THE DRAWINGS A more complete understanding of my invention may be had by reference to the accompanying drawings illustrating several embodiments of the present invention, in which like reference characters refer to like parts throughout the several views, and in which:
FIG. I is a fragmentary perspective view ola rooftop showing a flashing of a preferred embodiment of the present invention installed around a vent pipe;
FIG. 2 is a top view of the vent pipe and flashing of FIG. 1;
FIG. 3 is a vertical cross-sectional view taken through the rooftop flashing of FIG. 2 and indicating in phantom lines vent pipes of different diameters extending therethrough;
FIG. 4 is an enlarged fragmentary cross-sectional view of a portion of the flashing illustrating more in detail the location of the cutting line to remove the top flange or rim of the flashing for enlargement of the diameter of the opening; and
FIG. 5 is another perspective view of the flashing of the present invention illustrating the top or inner flange or rim of the flashing being removed to accommodate a vent pipe of larger diameter.
DESCRIPTION OF THE PREFERRED EMBODIMENT As illustrated in FIG. 11, a rooftop 10 has a conventional vent pipe 12 extending vertically therethrough and may also have a conventional vent pipe cap, which is here omitted for clarity.
The improved structure comprises a flashing 146 which peripherally engages the vent pipe 12, and has a flat base 166 adapted to be secured to the rooftop 10, as shown, by any means such as nails or the like. The flashing 146 comprises a substantially frusto-conically shaped body 118G extending from the flat base 166 at an oblique angle relative to the plane of the flat base 166. The upper rim is formed, as shown, into a pair of concentric cylindrical stepped portions 96 and 98 connected to each other and to the body of the flashing by connecting ridge portions 96a and 98a respectively. The uppermost portion 96 is dimensioned so that its inner surface will conform substantially with the outer diameter surface of a vent pipe 12, in this case being a conventional three inch OD. pipe, indicated in phantom lines. In the event the flashing is to be used with a larger pipe, as for example a conventional four inch 0.D. pipe indicated by the phantom line 12A in FIG. 3, the uppermost portion 96 is removed by cutting or otherwise severing the top 97 of the flashing at the junction formed by the ridge 96a with the inner cylindrical portion 98 along a cuttingline 100, as shown in detail in FIG. 4.
As particularly seen in FIG. 3 and in larger detail in FIG. 4, each of the portions 96, 98, which are concentric with each other around a center line X of the flashing, is provided with an O-ring or other similar sealing means 102 and 103 respectively which are of slightly smaller inner diameter than the respective vent pipes 1.2 and 12A and are compressible to a degree such that the O-ring seals will each conform readily to the shape of the respective vent pipe including its minor imperfections and irregularities to maintain a satisfactory water seal between the vent pipe and the flashing inner surface. If necessary the O- ring seals 102 and 103 may be bonded to the inside of the portions 96, 98 to securely keep them in place, or could be otherwise formed integrally with the material of the flashing.
A plurality of circular corrugations 104 extend around the annular portion (respective to the roof line) of the body 186 of the flashing 146 so that it will flex within limits to conform the base 16G to rooftops of varying pitches, and also to adapt to contractions and expansions of the roof structure.
With particular reference to FIGS. 4 and 5, if it is desired to use a vent pipe 12A of larger diameter, the top portion 97 of the body 186 of the flashing is cut off along the line 100 (FIG. 4) just below the uppermost portion 96. The cutting line 100 is on a plane normal to the central axis X" (FIG. 3) of the flashing and thus assures concentric installation of the larger vent pipe 12 in the flashing around the central axis X." It will be seen in FIG. 4 that, after the top portion 97 has been cut off along line 100, an axial cylindrical ridge portion 99 remains as a continuity of the inner portion 98 and forming together therewith a retaining means for the O- ring 103, holding the O-ring in place as it is compressed on the flashing being installed downwardly over the vent pipe. The flashing is formed to have a somewhat thinner periphery along the plane of the line 100 for easier cutting.
As seen in FIG. 1, the flashing 14G is installed on the rooftop in such a fashion that a portion of the flat base 166 is extended underneath the shingles 11 and the remaining portion lies on top of the shingles 11. However, the particular securement of the flashing to the rooftop 10 is immaterial and forms no part of the present invention.
The flashing 140 may be a stamping made from sheet metal, but is preferably molded of a suitable plastic or any other suitable and easily formable sheet material.
The construction herein described thereby provides a vent pipe flashing structure having an expanded versatility. If the flashing is made of plastic, polypropelene or polyethylene may be used, which have the properties required to conform sufficiently to the imperfections in the pipe and retain the shape of the pipes imperfections and irregularities at all times thereafter, while yet being weather resistant, tough and durable, as well as being slightly flexible for the purpose described. Multiple size usage of the singleflashing structure reduces the contractors inventory of flashings, and the flexible and slightly deformable properties of the plastic, particularly in conjunction with the use of the O-ring seals as shown, eliminates the necessity for caulking and prevents thermal expansion and contraction of the vent pipe from cracking the flashing or breaking the seal.
Although I have described only one preferred embodiment of my invention, it will be apparent to those skilled in the art to which the invention pertains that various changes and modifications may be made therein without departing from the spirit of the invention or the scope of the appended claims.
Iclaim:
l. A flashing for rooftop vent pipes and the like of different diameters, comprising:
a substantially frusto-conical shield member for enclosing a portion of said vent pipes upstanding from said rooftop and having a base adapted to engage the rooftop surface, said shield member having a plurality of stepped upper portions of varying diameters dimensioned to engage the outer diameters of differently sized vent pipes, at least said upper portions being of a material having the properties of deforming slightly to conform to the shape of said pipes including minor imperfections thereof, the smaller of said portions being severable for adapting said shield to selected vent pipes, and
sealing rings fitting within portions of said shield immediately below and of larger diameters than said stepped upper portions, said sealing rings having slightly smaller inner diameters than the adjacent upper portions for effectively sealing said pipes relative to said shield member.
2. The flashing as defined in claim 1 in which said sealing rings are readily deformable to conform to manufacturing variations in the diameters of said pipes.
3. The flashing as defined in claim 1 in which ,1 portion of said shield intermediate the flat base and the upper portions has corrugations extending in planes at an angle oblique to the central axis of said vent pipes, and said shield member being distortable in the area of said corrugations without distortion in the area of said stepped upper portions and to a degree whereby the flat base may move relative to the axis of said pipe to conform selectively to different roof pitches and to adapt to normal roof structure contractions and expansions.
4. The flashing as defined in claim 1 in which said shield member has its smaller end constituting the upper portion and the larger end being integral with the flat base.
5. The flashing as defined in claim 1 in which said upper stepped portions are adapted to retain said sealing rings which are outwardly expansible upon engaging around said pipe.
6. The flashing as defined in claim 1 and having annular ridge portions intermediate said stepped upper portions for indicating a separation line and facilitating easy separability of said smaller upper portion.
7. The flashing as defined in claim 1 in which a portion of said shield intermediate said base and said upper stepped portions has small step-like corrugations extending in planes substantially parallel to the plane of said base, and said shield member being slightly distortable at least in the area of said corrugations to a degree whereby said base may move relative to the central axis of said pipe to conform selectively to different roof pitches and to adapt to roof structure contractions and expansions.

Claims (7)

1. A flashing for rooftop vent pipes and the like of different diameters, comprising: a substantially frusto-conical shield member for enclosing a portion of said vent pipes upstanding from said rooftop and having a base adapted to engage the rooftop surface, said shield member having a plurality of stepped upper portions of varying diameters dimensioned to engage the outer diameters of differently sized vent pipes, at least said upper portions being of a material having the properties of deforming slightly to conform to the shape of said pipes including minor imperfections thereof, the smaller of said portions being severable for adapting said shield to selected vent pipes, and sealing rings fitting within portions of said shield immediately below and of larger diameters than said stepped upper portions, said sealing rings having slightly smaller inner diameters than the adjacent upper portions for effectively sealing said pipes relative to said shield member.
2. The flashing as defined in claim 1 in which said sealing rings are readily deformable to conform to manufacturing variations in the diameters of said pipes.
3. The flashing as defined in claim 1 in which a portion of said shield intermediate the flat base and the upper portions has corrugations extending in planes at an angle oblique to the central axis of said vent pipes, and said shield member being distortable in the area of saiD corrugations without distortion in the area of said stepped upper portions and to a degree whereby the flat base may move relative to the axis of said pipe to conform selectively to different roof pitches and to adapt to normal roof structure contractions and expansions.
4. The flashing as defined in claim 1 in which said shield member has its smaller end constituting the upper portion and the larger end being integral with the flat base.
5. The flashing as defined in claim 1 in which said upper stepped portions are adapted to retain said sealing rings which are outwardly expansible upon engaging around said pipe.
6. The flashing as defined in claim 1 and having annular ridge portions intermediate said stepped upper portions for indicating a separation line and facilitating easy separability of said smaller upper portion.
7. The flashing as defined in claim 1 in which a portion of said shield intermediate said base and said upper stepped portions has small step-like corrugations extending in planes substantially parallel to the plane of said base, and said shield member being slightly distortable at least in the area of said corrugations to a degree whereby said base may move relative to the central axis of said pipe to conform selectively to different roof pitches and to adapt to roof structure contractions and expansions.
US00222893A 1972-02-02 1972-02-02 Flashing for roof vent pipes Expired - Lifetime US3731952A (en)

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Cited By (36)

* Cited by examiner, † Cited by third party
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US3866950A (en) * 1973-05-21 1975-02-18 Versatile Ind Inc Multi-size adapters
US3871145A (en) * 1973-04-05 1975-03-18 James W Hatmaker Flashing for pitch pocket
US4010578A (en) * 1974-11-11 1977-03-08 Logsdon Duane D Roof flashing structure
US4120129A (en) * 1976-09-01 1978-10-17 The Pate Company Pipe flashing unit
US4158471A (en) * 1978-03-27 1979-06-19 The Logsdon Foundation Washing machine outlet box
DE2949956A1 (en) * 1979-12-12 1981-06-19 Werner Ing Grad Esslinger Universal pitched tiled roof opening cover panel - has deformable metal bars and flexible base piece fitting like folding bellows
US4333660A (en) * 1977-01-17 1982-06-08 Cupit George M Seal device for pipe projecting through roof
WO1985004923A1 (en) * 1984-04-19 1985-11-07 Aquarius Rubber Pty. Ltd. A seal device and method of producing same
US4563847A (en) * 1982-06-17 1986-01-14 W F Products Corporation Universal flashing for roof vent pipes
EP0209491A1 (en) * 1985-07-12 1987-01-21 Dübi & Co. Roof enclosure for vent pipes or exhaust chimneys
US4768812A (en) * 1987-11-02 1988-09-06 Multi-Flashings, Inc. Flashing for roof vent pipes
WO1991000399A1 (en) * 1989-06-30 1991-01-10 Earl Blair Roof jack
US5010700A (en) * 1989-06-30 1991-04-30 Earl Blair Roof jack
US5036636A (en) * 1987-12-22 1991-08-06 Hasty William E Multiple size vent-pipe roof flashing
US5222334A (en) * 1987-12-22 1993-06-29 Hasty William E Multiple size vent-pipe elastomeric collar
US5286040A (en) * 1991-12-19 1994-02-15 Gavin Norman W Asymmetrical pipe seal and closure member
US5624123A (en) * 1994-05-11 1997-04-29 Tuf-Tite, Inc. Pipe seal assembly for poured concrete on-site waste disposal system components
US5711536A (en) * 1994-05-11 1998-01-27 Tuf-Tite, Inc. Seal component for use in on-site poured concrete or plastic tank or box components of fluid distribution systems
DE20002301U1 (en) 2000-02-09 2000-04-06 Basika Entwässerungen GmbH, 42111 Wuppertal Cover plate for roof drainage systems
US6163960A (en) * 1998-11-27 2000-12-26 Poitras; Michel Static ventilator including a corrugated portion
EP1582648A1 (en) * 2004-04-02 2005-10-05 Dakota Metal Plastic Works LLC Valley/Flashing for flues
US20080056481A1 (en) * 2006-09-01 2008-03-06 Research In Motion Limited Integrated dialing
US20080098673A1 (en) * 2006-10-26 2008-05-01 Johnston Lorne G Vent Pipe Covering System
US20080271391A1 (en) * 2007-05-03 2008-11-06 Ramon Dalmasso Vent Stack Repair Sleeve
US7814709B1 (en) 2009-07-16 2010-10-19 Resech Ronald W Pipe boot
US20110000154A1 (en) * 2009-06-19 2011-01-06 Cline Roger M Sealing system
US20120031024A1 (en) * 2010-08-04 2012-02-09 Selke Bruce A Roof boot
US8984822B1 (en) * 2012-09-24 2015-03-24 Lifetime Tool & Building Products, LLC Roof-penetrating pipe sealing
US20150083236A1 (en) * 2012-03-02 2015-03-26 Lake Products Limited Escutcheon
USD796074S1 (en) * 2015-08-05 2017-08-29 William Ralph Bond Roof pipe flashing
DK201700130A1 (en) * 2017-02-27 2018-01-29 Gml Invest Aps Pipe Flashing
US9909320B2 (en) 2015-12-03 2018-03-06 Dennis Vowles Roof flashing
WO2020019069A1 (en) * 2018-07-23 2020-01-30 Solmax International Inc. Adjustable polymeric pipe flashing system for impermeable geotechnical applications
USD878543S1 (en) * 2015-06-04 2020-03-17 Ffcres, Llc Vent Cover
US20230144012A1 (en) * 2021-11-05 2023-05-11 Rectorseal, Llc Line Set Cover
US12129647B2 (en) * 2022-08-26 2024-10-29 Rectorseal, Llc Line set cover

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US1844870A (en) * 1931-05-15 1932-02-09 Carpenter & Paterson Inc Roof joint
US2025067A (en) * 1934-12-17 1935-12-24 Thomas S Miller Tank filling device
US2985465A (en) * 1957-12-20 1961-05-23 Monarch Rubber Company Roof flange construction
FR1307295A (en) * 1961-09-11 1962-10-26 Legrand Ets Seal for tight passage of a cable through a wall
GB971124A (en) * 1962-03-22 1964-09-30 Hepworth Iron Co Ltd Improvements in or relating to joints for pipes as used for sewers, drains or conduits
US3521414A (en) * 1968-08-23 1970-07-21 Penn Ventilator Co Inc Base for roof mounted devices
US3602530A (en) * 1969-02-17 1971-08-31 Multi Flashings Inc Flashing for roof vent pipes

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US1844870A (en) * 1931-05-15 1932-02-09 Carpenter & Paterson Inc Roof joint
US2025067A (en) * 1934-12-17 1935-12-24 Thomas S Miller Tank filling device
US2985465A (en) * 1957-12-20 1961-05-23 Monarch Rubber Company Roof flange construction
FR1307295A (en) * 1961-09-11 1962-10-26 Legrand Ets Seal for tight passage of a cable through a wall
GB971124A (en) * 1962-03-22 1964-09-30 Hepworth Iron Co Ltd Improvements in or relating to joints for pipes as used for sewers, drains or conduits
US3521414A (en) * 1968-08-23 1970-07-21 Penn Ventilator Co Inc Base for roof mounted devices
US3602530A (en) * 1969-02-17 1971-08-31 Multi Flashings Inc Flashing for roof vent pipes

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871145A (en) * 1973-04-05 1975-03-18 James W Hatmaker Flashing for pitch pocket
US3866950A (en) * 1973-05-21 1975-02-18 Versatile Ind Inc Multi-size adapters
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Owner name: MULTI FLASHINGS INC., A CORP OF MI

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Effective date: 19850301

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Owner name: MULTI-FLASHINGS, INC.,MICHIGAN

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Owner name: MULTI-FLASHINGS, INC., 27036 JOHN R STREET, MADISO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ROYAL SEVEN, INC., A MI. CORP..;REEL/FRAME:004832/0997

Effective date: 19871027