Patent US4146113A successfully refreshed from Google Patents.
US4146113A
Expired / Lapsed
US
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Noise-protection screen
Assignee: GAVELS ARKITEKTKONTOR AB
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Filing: 1977-09-16
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Granted: 1979-03-27
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Expires: 1997-09-16
Abstract
Abstract The noise protection screen of the present invention comprises a plurality of hollow tubular members, preferably of equal length and substantially elliptical in cross-section. The hollow members are formed of a flexible material and inclined at an angle to the horizontal. The hollow members are interconnected by corresponding tongue-and-groove engagement whereby the engaged grooves are deformed in a manner to provide a clamping action of the grooves about the corresponding tongues.
Inventors
- 👤 Peter Gavel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:26
CPC Classifications
E; E01; E01F; E01F8/00; E01F8/0005; E01F8/0035
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
139 words
A noise protection screen comprised of a plurality of hollow tubular members of equal length and substantially ellipitical in cross-section, each of said hollow members being formed of flexible material and being arranged in a vertical plane and inclined at an angle of from 15 to 75 degrees to the horizontal, said hollow members being interconnected by corresponding tongue-and-groove engagement and interlocked by action of the weight of the hollow members upon each other whereby the engaged grooves are deformed in a manner to provide a clamping action of the grooves about the corresponding tongues, each hollow member having a fixed projecting tongue extending longitudinally on one side and a recessed groove extending longitudinally within an opposing side, the tongue-and-groove engagement occurring between a fixed tongue of one hollow member and a corresponding groove within an adjacent hollow member.
Claim 2
Dependent Claim
139 words
A noise protection screen comprised of a plurality of hollow tubular members of equal length and substantially ellipitical in cross-section, each of said hollow members being formed of flexible material and being arranged in a vertical plane and inclined at an angle of from 15 to 75 degrees to the horizontal, said hollow members being interconnected by corresponding tongue-and-groove engagement and interlocked by action of the weight of the hollow members upon each other whereby the engaged grooves are deformed in a manner to provide a clamping action of the grooves about the corresponding tongues, each hollow member having a fixed projecting tongue extending longitudinally on one side and a recessed groove extending longitudinally within an opposing side, the tongue-and-groove engagement occurring between a fixed tongue of one hollow member and a corresponding groove within an adjacent hollow member.
Claim 3
Dependent Claim
17 words
The noise protection screen of claim 1 wherein the hollow members are comprised of a plastic material.
Claim 4
Dependent Claim
15 words
The noise protection screen of claim 1 wherein the hollow members are filled with sand.
Claim 5
Dependent Claim
17 words
The noise protection screen of claim 1 wherein the hollow members are filled with sound absorbing material.
Claim 6
Dependent Claim
15 words
The noise protection screen of claim 4 wherein said sound absorbing material comprises foamed plastic.
Claim 7
Dependent Claim
15 words
The noise protection screen of claim 4 wherein said sound absorbing material comprises mineral wool.
Claim 8
Dependent Claim
164 words
A noise protection screen comprised of a plurality of hollow tubular members of equal length and substantially elliptical in cross-section, each of said hollow members being formed of flexible materials and being arranged in a vertical plane and inclined at an angle of from 15 to 75 degrees to the horizontal, the hollow members being interconnected by corresponding tongue-and-groove engagement and interlocked by action of the weight of the hollow members upon each other whereby the engaged grooves are deformed in a manner to provide a clamping action of the grooves about the corresponding tongues, each hollow member having a fixed projecting tongue extending longitudinally on one side and a recessed groove extending longitudinally within an opposing side, the tongue-and-groove engagement occurring between adjacent grooves of adjacent hollow members and a loose tongue which engages said adjacent grooves, together with engagement between a fixed tongue of at least one of said adjacent hollow members and a corresponding groove in an additionally adjacent hollow member.
Claim 9
Dependent Claim
164 words
A noise protection screen comprised of a plurality of hollow tubular members of equal length and substantially elliptical in cross-section, each of said hollow members being formed of flexible materials and being arranged in a vertical plane and inclined at an angle of from 15 to 75 degrees to the horizontal, the hollow members being interconnected by corresponding tongue-and-groove engagement and interlocked by action of the weight of the hollow members upon each other whereby the engaged grooves are deformed in a manner to provide a clamping action of the grooves about the corresponding tongues, each hollow member having a fixed projecting tongue extending longitudinally on one side and a recessed groove extending longitudinally within an opposing side, the tongue-and-groove engagement occurring between adjacent grooves of adjacent hollow members and a loose tongue which engages said adjacent grooves, together with engagement between a fixed tongue of at least one of said adjacent hollow members and a corresponding groove in an additionally adjacent hollow member.
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) | 1982-03-26 | 1982-09-25 | 1983-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-26 | 1986-09-25 | 1987-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-26 | 1990-09-25 | 1991-03-27 | $7700.00 | Window Closed / Lapsed |