US3950912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound attenuating walls
Assignee: BPA Byggproduktion AB
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Filing: 1974-06-20
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Granted: 1976-04-20
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Expires: 1994-06-20
Abstract
Abstract A sound attenuating wall comprises a skeleton frame, surface layers secured thereto, skeleton frame members, and an insulation provided between the skeleton frame members and the surface layers, respectively. The skeleton frame members are formed by two elements which in point of strength act separately of each other and are interconnected by portions of material which are weak or slender in the direction of the plane of the wall. The insulation disposed in the wall fills out only part of the space therein.
Inventors
- 👤 Borje Lundberg
- 👤 Bjorn Samuelsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:15
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/7407; E04B2/7409; E04B2/7412; E04B1/00; E04B1/62; E04B1/74; E04B1/82
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
98 words
A sound attenuating wall including members defining a skeleton frame, and surface coverings fixed on each side of said frame, wherein at least one of the members defining the skeleton frame comprises a pair of separately acting elements interconnected by portions of material which are weakened or slender in a direction at right angles to the plane of the wall, and wherein each element has a flange portion projecting essentially in a direction parallel to the plane of the wall, the edges of said flanges remote from the element being interconnected by the weakened or slender material portions.
Claim 2
Dependent Claim
98 words
A sound attenuating wall including members defining a skeleton frame, and surface coverings fixed on each side of said frame, wherein at least one of the members defining the skeleton frame comprises a pair of separately acting elements interconnected by portions of material which are weakened or slender in a direction at right angles to the plane of the wall, and wherein each element has a flange portion projecting essentially in a direction parallel to the plane of the wall, the edges of said flanges remote from the element being interconnected by the weakened or slender material portions.
Claim 3
Dependent Claim
36 words
The sound attenuating wall as claimed in claim 1, wherein the two elements are integral U-sections, and adjoining flange portions of the respective section are interconnected at their outer edges by means of weakened material portions.
Claim 4
Dependent Claim
69 words
The sound attenuating wall as claimed in claim 1, wherein one element of the member is a U-shaped sheet steel section whereas the other element of the member is a stud of wood having a sheet steel flange strip secured thereto, and wherein a flange portion of the first mentioned element is connected, via weakened or slender portions of material, with the flange strip secured to the other element.
Claim 5
Dependent Claim
33 words
The sound attenuating wall as claimed in claim 2, wherein the weakened portions of material interconnecting the elements of the skeleton frame members are formed by tongue-shaped portions integral with the adjoining flanges.
Claim 6
Dependent Claim
29 words
The sound attenuating wall as claimed in claim 2, wherein the weakened portions of material interconnecting the adjoining flanges of the two elements of the frame members are thinned.
Claim 7
Dependent Claim
63 words
The sound attenuating wall as claimed in claim 1 further including sound insulating or absorbing material disposed in the space between the skeleton frame members and the surface coverings, the sound insulating or absorbing material being adapted entirely to fill out but a restricted portion of each of the spaces existing between and defined by the skeleton frame members and the surface coverings.
Claim 8
Dependent Claim
25 words
The sound attenuating wall as claimed in claim 6, wherein the insulating material is mounted in the lower portion of the space inside the wall.
Claim 9
Dependent Claim
23 words
The sound attenuating wall as claimed in claim 6, wherein the insulating material fills out approximately two fifths of the otherwise unfilled space.
Claim 10
Dependent Claim
16 words
The sound attenuating wall as claimed in claim 6, wherein the insulating material is mineral wool.
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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) | 1979-04-20 | 1979-10-20 | 1980-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-20 | 1983-10-20 | 1984-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-20 | 1987-10-20 | 1988-04-20 | $7700.00 | Window Closed / Lapsed |