US3602530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flashing for roof vent pipes
Assignee: A NEW MULTI FASHINGS Inc A CORP OF MI
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Filing: 1969-02-17
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Granted: 1971-08-31
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Expires: 1989-02-17
Abstract
Abstract A flashing for roof vent pipes and the like in which a shield member surrounds the vent pipe and has a base flange engaging the rooftop surface and an upper edge provided with a plurality of concentric inner rims selectively diametered to fit varying pipe sizes, the inner rim being readily severed so that the outer rim will fit the larger pipe, the flashing being made of a material which will deform to a degree, to conform with the shape of the pipe including minor imperfections thereof and to retain such conforming shape thereafter. The rims in some embodiments have small corrugations to permit sufficient pipe shape conforming deformation, and at least a portion of the shield member has semicircular or circular corrugations extending substantially normal to the axis of the vent pipe or substantially parallel with the base flange so that the shield will flex to conform with slightly different roof pitches as well as to provide flexing required by expansion and contraction of building structure.
Inventors
- 👤 Bruce J Elwart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:46
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/14; E04D13/147; E04D13/1471
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
255 words
A flashing for rooftop vent pipes and the like comprising a. a shield member enclosing a portion of said vent pipe upstanding from said rooftop, b. said shield member having a base flange adapted to engage the rooftop surface, c. said shield member having a first substantially frustoconical portion integral with and upstanding from said base flange and having an upper annular edge dimensioned to engage the outer surface of a vent pipe of one predetermined diameter, an inwardly formed shoulder integral with the upper edge and having an inner annular rim, and a second substantially frustoconical portion integral with and upstanding from said inner annular rim and dimensioned to engage with the outer surface of a vent pipe having a second predetermined diameter, d. said rim and the second portion integral therewith being adapted to be severed from said first frustoconical portion for use with the vent pipe having the first predetermined diameter, e. said shield being of a material having the properties of deforming slightly, of conforming to the shape of said vent pipe including minor imperfections thereof, and of retaining such conforming shape thereafter, and f. a portion of said first frustoconical portion having small steplike corrugations extending in parallel planes around said frustoconical portion, and said shield member being slightly distortable at least in the area of said corrugations to a degree whereby the base flange may more relative to the axis of said pipe to conform selectively to different roof pitches and to adapt to roof structure contractions and expansions.
Claim 2
Dependent Claim
255 words
A flashing for rooftop vent pipes and the like comprising a. a shield member enclosing a portion of said vent pipe upstanding from said rooftop, b. said shield member having a base flange adapted to engage the rooftop surface, c. said shield member having a first substantially frustoconical portion integral with and upstanding from said base flange and having an upper annular edge dimensioned to engage the outer surface of a vent pipe of one predetermined diameter, an inwardly formed shoulder integral with the upper edge and having an inner annular rim, and a second substantially frustoconical portion integral with and upstanding from said inner annular rim and dimensioned to engage with the outer surface of a vent pipe having a second predetermined diameter, d. said rim and the second portion integral therewith being adapted to be severed from said first frustoconical portion for use with the vent pipe having the first predetermined diameter, e. said shield being of a material having the properties of deforming slightly, of conforming to the shape of said vent pipe including minor imperfections thereof, and of retaining such conforming shape thereafter, and f. a portion of said first frustoconical portion having small steplike corrugations extending in parallel planes around said frustoconical portion, and said shield member being slightly distortable at least in the area of said corrugations to a degree whereby the base flange may more relative to the axis of said pipe to conform selectively to different roof pitches and to adapt to roof structure contractions and expansions.
Claim 3
Dependent Claim
18 words
The flashing as defined in claim 1 and in which said corrugations extend substantially semicircularly around said shield.
Claim 4
Dependent Claim
24 words
The flashing as defined in claim 1 and in which said corrugations extend in planes substantially normal to the axis of said vent pipe.
Claim 5
Dependent Claim
21 words
The flashing as defined in claim 1 and in which said corrugations extend in planes substantially parallel to said base flange.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |