Patent US3966121A successfully refreshed from Google Patents.
US3966121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Downspout extension
Assignee: Design House Inc
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Filing: 1975-05-22
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Granted: 1976-06-29
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Expires: 1995-05-22
Abstract
Abstract A coilable downspout drain extension includes an elongated tube formed from two opposed tube portions fastened together by heat-sealed seams on the side edges. Second heat-sealed seams located inwardly of the first seams define channels for receiving spring strips which cause the extension to coil when not in use. A flexible sleeve formed from the tube portion and extending past the termination of the spring strips is easily connected to the downspout by a flexible strap and buckle.
Inventors
- 👤 Bruce A. Littman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:58
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/04; E04D13/08; A; A01; A01G; A01G25/00; A01G25/02; B; B05; B05B; B05B1/00; B05B1/14; B05B1/20; E04D2013/0806; E04D2013/0813
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
144 words
A downspout extension comprising an elongated tube body, said tube being formed from two opposed tube portions, said tube portions being connected together along their edges by first longitudinal seams, second longitudinal seams spaced inwardly from said side edges to form a central water conduit, apertures in said tube portions to form water outlets, and said first seams cooperating with said second seams to form channels transverse seams closing one end of each of said channels, spring strips located in said channels to cause said tube to wind into a coil, said tube including a downspout connecting sleeve said sleeve being formed by said two opposed tube portions and said second longitudinal seams to form a flexible connecting sleeve free of said springs and extending from said transverse seams for attachment to the downspout, and clamping means for securing said sleeve to the downspout.
Claim 2
Dependent Claim
144 words
A downspout extension comprising an elongated tube body, said tube being formed from two opposed tube portions, said tube portions being connected together along their edges by first longitudinal seams, second longitudinal seams spaced inwardly from said side edges to form a central water conduit, apertures in said tube portions to form water outlets, and said first seams cooperating with said second seams to form channels transverse seams closing one end of each of said channels, spring strips located in said channels to cause said tube to wind into a coil, said tube including a downspout connecting sleeve said sleeve being formed by said two opposed tube portions and said second longitudinal seams to form a flexible connecting sleeve free of said springs and extending from said transverse seams for attachment to the downspout, and clamping means for securing said sleeve to the downspout.
Claim 3
Dependent Claim
28 words
A downspout extension in accordance with claim 1 wherein said clamping means comprises a flexible strap with a strap fastener for adjustably connecting the ends of the strap.
Claim 4
Dependent Claim
23 words
Apparatus in accordance with claim 1 including a flexible and yieldable seal for sealing the inside of said sleeve portion to said downspout.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |