US3772993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noise abating barrier
Assignee: Trane US Inc
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Filing: 1972-02-23
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Granted: 1973-11-20
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Expires: 1992-02-23
Abstract
Abstract This disclosure relates to a noise barrier structure for reducing the level of wheel squeal produced by a railroad car retarder. The barrier structure includes a row of supporting ties disposed on each side of the car retarder. An L-shaped steel column is secured to each of the supporting ties. A rectangular wooden mounting frame has a top section which is secured to the upper ends of the columns and has a bottom section which is secured to the top surfaces of the supporting ties. A canted solid wall structure including a plurality of corrugated panels are disposed in side-by-side relationship. The panels are securely fastened to the frame so that the sound of the wheel squeal is partially absorbed by the wall and is reflected by its surface into the surrounding ballast.
Inventors
- 👤 P Noble
- 👤 J Carey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:32
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/18; G10K11/20; E; E01; E01F; E01F8/00; E01F8/0005; E01F8/0035
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
97 words
In a combination, comprising a car retarder located in the railroad track of a classification yard, said car retarder acts on the wheels of railroad vehicles passing through said retarder for controlling the speed of said vehicles, and an elongated canted noise abating barrier structure located on either side of said track and extending along the length of said car retarder so that wheel squeal produced by said retarder is abated by being absorbed by said barrier and by being reflected by the surface of said barrier into the ballast in the area of said car retarder.
Claim 2
Dependent Claim
97 words
In a combination, comprising a car retarder located in the railroad track of a classification yard, said car retarder acts on the wheels of railroad vehicles passing through said retarder for controlling the speed of said vehicles, and an elongated canted noise abating barrier structure located on either side of said track and extending along the length of said car retarder so that wheel squeal produced by said retarder is abated by being absorbed by said barrier and by being reflected by the surface of said barrier into the ballast in the area of said car retarder.
Claim 3
Dependent Claim
29 words
The combination as defined in claim 1, wherein each of said canted barrier structures includes a solid wall constructed of a high density material which is impervious to liquids.
Claim 4
Dependent Claim
36 words
The combination as defined in claim 2, wherein said solid wall is formed by a plurality of corrugated sheets which are disposed in side-by-side relationship with each other and which are securely fastened to frame structures.
Claim 5
Dependent Claim
18 words
The combination as defined in claim 2, wherein said high density material is a cement and asbestos composition.
Claim 6
Dependent Claim
35 words
The combination as defined in claim 1, wherein a plurality of vertical steel columns, each of which is secured one of a row to supporting ties, are located adjacent the cross-ties supporting said car retarder.
Claim 7
Dependent Claim
22 words
The combination as defined in claim 5, wherein said canted barrier structure includes frame members to which are secured solid wall panels.
Claim 8
Dependent Claim
26 words
The combination as defined in claim 6, wherein said frame members are secured to said supporting ties and to the tops of said vertical steel columns.
Claim 9
Dependent Claim
36 words
The combination as defined in claim 6, wherein said steel columns are L-shaped members which have one leg secured to the tops of said supporting ties and have the other leg secured to said frame members.
Claim 10
Dependent Claim
18 words
The combination as defined in claim 3, wherein batten strips cover the abutting edges of said corrugated sheets.
Claim 11
Dependent Claim
26 words
The combination as defined in claim 6, wherein said wall panels are corrugated members which have their adjacent edges overlapped and securely fastened by batten strips.
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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |