US3850193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion joint and drain conduit for foundation walls
Assignee: Individual
•
Filing: 1973-10-09
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Granted: 1974-11-26
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Expires: 1993-10-09
Abstract
Abstract A combination drain conduit and expansion joint for foundation walls, which conduit is of stepped formation with the respective end flanges resting against a footer and a first course of concrete or cinder blocks. An integral upstanding flange is in spaced parallel relationship to that resting against the concrete block course to support an expansion strip to take up for expansion of the concrete floor under which said conduit is embedded. Drain holes at the bottom of the concrete block course will drain into the channel formed by said conduit, thence through a plurality of pipes connected to a sewer pipe so as to effectively drain water which seeps into the foundation walls.
Inventors
- 👤 R Guzzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:57
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/04; E02; E02D; E02D29/00; E02D29/16; E02D31/00; E02D31/02; E03F5/0407; E03F5/0409; E04; E04B; E04B1/00; E04B1/62; E04B1/70; E04B1/7023; E04B1/703; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6966; Y10T137/6969; Y10T137/6988
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
168 words
In a building having a footer, a foundation wall supported on said footer and a concrete floor having a perimetrical end supported on said footer; the improvement comprising a drain conduit of stepped cross-section having a horizontal end flange supported on said footer and a vertically upwardly extending end flange resting against the lowermost portion of said wall to provide a drain channel extending along the joint between said foundation wall and footer, a plurality of drain tubes connecting the riser flange of said drain conduit to a sewer, said drain conduit also having an integral vertically upwardly extending flange in spaced parallel relationship with said vertical end flange, and a strip of expansible material extending between said vertical flanges and between the perimeter of said floor slab and the interior vertical surface of said lowermost portion of the foundation wall so as to take up for thermal expansion and contraction of the floor slab to prevent formation of a leakage opening between said slab and foundation wall.
Claim 2
Dependent Claim
168 words
In a building having a footer, a foundation wall supported on said footer and a concrete floor having a perimetrical end supported on said footer; the improvement comprising a drain conduit of stepped cross-section having a horizontal end flange supported on said footer and a vertically upwardly extending end flange resting against the lowermost portion of said wall to provide a drain channel extending along the joint between said foundation wall and footer, a plurality of drain tubes connecting the riser flange of said drain conduit to a sewer, said drain conduit also having an integral vertically upwardly extending flange in spaced parallel relationship with said vertical end flange, and a strip of expansible material extending between said vertical flanges and between the perimeter of said floor slab and the interior vertical surface of said lowermost portion of the foundation wall so as to take up for thermal expansion and contraction of the floor slab to prevent formation of a leakage opening between said slab and foundation wall.
Claim 3
Dependent Claim
42 words
A foundation wall drain system as recited in claim 1 together with a plurality of drain openings formed on the interior surface of said lowermost portion of said foundation wall to drain seepage water into the space formed by said drain conduit.
References Cited (Backward Citations)
US3287866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |