Patent US4630966A successfully refreshed from Google Patents.
US4630966A
Expired / Lapsed
US
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Drainage channel
Assignee: Aco Polymer Products Inc
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Filing: 1985-11-07
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Granted: 1986-12-23
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Expires: 2005-11-07
Abstract
Abstract A drainage channel is shown which features a body having complementary ends which, in abutting relationship, form interlock with adjacent channel bodies when joining the channel bodies together; and an edge protective frame device for the upper free rims or edges of the channel side walls comprising a web resting on top of the channel side wall and two anchor legs extending downwards from and linked by the web and proceeding in the same direction and distance, at least one of which anchor legs is flush with its respective channel side wall and between the two of which legs the material of the upper part of the channel walls is formed; and a mounting leg for a channel cover, extending upwards from the outer edge of the web.
Inventors
- 👤 Peter Karbstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:46
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/22; E01C11/224; E01C11/227
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
208 words
A drainage channel having a body which is U-shaped, with two complementary and opposite ends which are capable of form interlocking with another channel body placed adjacent thereto in abutting and mating relationship, one of said complementary ends having skewed surface sections (16), and the opposite of said ends having skewed surface sections (18) and (19), said channel having side walls (11, 12) and a channel trough (13), said skewed surface sections being capable of fitting together holohedrally with adjacent drainage channels, each of said side walls being fitted with an edge protective frame device (23) formed of a web resting on top of each of said side walls and two anchor legs extending downwards therefrom and linked by the web, at least one of said legs being flush with its respective side wall of the channel, the upper part of each of said channel side walls extending between the two anchor legs, said device having a mounting leg extending upwardly from the outer edge of the web and adapted to receive a channel cover, said edge protective device being formed of sheet metal bent to form said web (27) and said inner anchor leg (28) and folded to form a double sheet metal layer mounting leg (26).
Claim 2
Dependent Claim
208 words
A drainage channel having a body which is U-shaped, with two complementary and opposite ends which are capable of form interlocking with another channel body placed adjacent thereto in abutting and mating relationship, one of said complementary ends having skewed surface sections (16), and the opposite of said ends having skewed surface sections (18) and (19), said channel having side walls (11, 12) and a channel trough (13), said skewed surface sections being capable of fitting together holohedrally with adjacent drainage channels, each of said side walls being fitted with an edge protective frame device (23) formed of a web resting on top of each of said side walls and two anchor legs extending downwards therefrom and linked by the web, at least one of said legs being flush with its respective side wall of the channel, the upper part of each of said channel side walls extending between the two anchor legs, said device having a mounting leg extending upwardly from the outer edge of the web and adapted to receive a channel cover, said edge protective device being formed of sheet metal bent to form said web (27) and said inner anchor leg (28) and folded to form a double sheet metal layer mounting leg (26).
Claim 3
Dependent Claim
95 words
The drainage channel according to claim 1, wherein the skewed surfaces (18, 19) are located at one end of the channel body (10) between two vertical surfaces (17, 20) which are positioned vertically to the channel body axis, said skewed surfaces (18, 19) being directed towards the inner vertical surface (20) and the skewed surfaces (16) on the opposite end of the channel being sloped in an outwardly direction from a protruding surface (15) whichd is vertical to the body axis and is adapted to mate with the inner surface (20) of an adjacent channel.
Claim 4
Dependent Claim
21 words
The drainage channel according to claim 1, further comprising inward anchor tongues (24) being formed into the anchor legs (28, 29).
Claim 5
Dependent Claim
14 words
The drainage channel according to claim 3, wherein anchor tongues (24) being tilted upwards.
Claim 6
Dependent Claim
25 words
The drainage channel according to claim 1, wherein recesses (31) are present at the end of the bottom edges of the inner anchor legs (28).
Claim 7
Dependent Claim
27 words
The drainage channel according to claim 1, wherein a sheet metal web (27) is curved around a line which is at right angles with the longitudinal axis.
Claim 8
Dependent Claim
18 words
A drainage channel according to claim 1, wherein the channel body is formed of concrete or polyester concrete.
References Cited (Backward Citations)
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US3417570A
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US3956134A
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US4341392A
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US4105353A
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US4472078A
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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) | 1989-12-22 | 1990-06-23 | 1990-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-22 | 1994-06-23 | 1994-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-22 | 1998-06-23 | 1998-12-23 | $7700.00 | Window Closed / Lapsed |