Patent US4253285A successfully refreshed from Google Patents.
US4253285A
Expired / Lapsed
US
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Percolating water drainage system
Assignee: Individual
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Filing: 1978-12-11
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Granted: 1981-03-03
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Expires: 1998-12-11
Abstract
Abstract A drainage device for building foundations is provided, composed of a tubular structure having apertures in its upper and side surfaces and a drainage orifice at one end thereof. The device is sized to permit installation between segments of the building material forming the foundation and may be surrounded by mortar. Water percolating through the foundation is collected via the apertures and drained away from the foundation through the tubular structure. Any number of such drainage devices may be installed during construction of the building foundation.
Inventors
- 👤 Michael F. Enright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:52
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/70; E04B1/703; E04B1/7023; E04B1/7038; E04B1/7046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
In a building foundation of blocks interconnected by mortar joints having a particular thickness, the improvement of a drainage system to the exterior of the building foundation, comprising: a plurality of hollow members being substantially of said particular thickness and being received by certain of the mortar joints, each said hollow member having a drainage portion and a percolation collection portion, and each said hollow member engaging the building foundation, said percolation collection portion of each said hollow member having a plurality of apertures for receiving water from the foundation and being maintained within the associated mortar joint, said drainage portion of each said hollow member extending from the exterior of the building foundation, whereby said hollow members remove fluid from the building foundation and transfer it outside of the building.
Claim 2
Dependent Claim
131 words
In a building foundation of blocks interconnected by mortar joints having a particular thickness, the improvement of a drainage system to the exterior of the building foundation, comprising: a plurality of hollow members being substantially of said particular thickness and being received by certain of the mortar joints, each said hollow member having a drainage portion and a percolation collection portion, and each said hollow member engaging the building foundation, said percolation collection portion of each said hollow member having a plurality of apertures for receiving water from the foundation and being maintained within the associated mortar joint, said drainage portion of each said hollow member extending from the exterior of the building foundation, whereby said hollow members remove fluid from the building foundation and transfer it outside of the building.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-02 | 1984-09-01 | 1985-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-02 | 1988-09-01 | 1989-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-02 | 1992-09-01 | 1993-03-03 | $7700.00 | Window Closed / Lapsed |