Patent US3731409A successfully refreshed from Google Patents.
US3731409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ballast compacting and leveling apparatus
Assignee: Franz Plasser Bahnbaumaschinen Industrie GmbH
•
Filing: 1971-07-27
•
Granted: 1973-05-08
•
Expires: 1991-07-27
Abstract
Abstract A pair of ballast compactors arranged for compacting the two outer lateral portions of a ballast bed and a ballast leveler arranged to level the central ballast bed portion are carried by a common vibratory cross beam. The vibrator for the beam is arranged centrally thereof.
Inventors
- 👤 L Schenkir
- 👤 J Dultinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:45
CPC Classifications
E; E01; E01B; E01B27/00; E01B27/02; E01B27/023; E01B27/026; E01B27/12; E01B27/13
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
140 words
An apparatus for compacting and leveling the ballast of a railroad track, the ballast consisting of two lateral portions outwardly adjacent the track and a central portion therebetween underneath the track, the apparatus comprising 1 a pair of ballast compacting means arranged for compacting the lateral ballast portions; 2. a ballast leveling means arranged to level the central ballast portion; 3. a common vibratory beam extending transversely of the track and carrying the ballast compacting means and the ballast leveling means; 4. a vibrating means arranged centrally of the beam for vibrating the beam; 5. a frame mounted on the track for mobility thereon, the beam being mounted on the frame for vibratory motion in respect thereto; and 6. tension springs interconnecting the beam and the frame, the tension springs being biased in the direction of vibration of the beam.
Claim 2
Independent Claim
140 words
An apparatus for compacting and leveling the ballast of a railroad track, the ballast consisting of two lateral portions outwardly adjacent the track and a central portion therebetween underneath the track, the apparatus comprising 1 a pair of ballast compacting means arranged for compacting the lateral ballast portions; 2. a ballast leveling means arranged to level the central ballast portion; 3. a common vibratory beam extending transversely of the track and carrying the ballast compacting means and the ballast leveling means; 4. a vibrating means arranged centrally of the beam for vibrating the beam; 5. a frame mounted on the track for mobility thereon, the beam being mounted on the frame for vibratory motion in respect thereto; and 6. tension springs interconnecting the beam and the frame, the tension springs being biased in the direction of vibration of the beam.
Claim 3
Dependent Claim
11 words
a ballast leveling means arranged to level the central ballast portion;
Claim 4
Dependent Claim
11 words
a ballast leveling means arranged to level the central ballast portion;
Claim 5
Dependent Claim
14 words
The apparatus of claim 1, wherein the beam is freely suspended on the frame.
Claim 6
Dependent Claim
33 words
The apparatus of claim 1, wherein each of the ballast compacting means comprises a ballast tamping plate extending transversely to the beam and immersible in a respective one of the lateral ballast portions.
Claim 7
Dependent Claim
20 words
a common vibratory beam extending transversely of the track and carrying the ballast compacting means and the ballast leveling means;
Claim 8
Dependent Claim
20 words
a common vibratory beam extending transversely of the track and carrying the ballast compacting means and the ballast leveling means;
Claim 9
Dependent Claim
12 words
a vibrating means arranged centrally of the beam for vibrating the beam;
Claim 10
Dependent Claim
12 words
a vibrating means arranged centrally of the beam for vibrating the beam;
Claim 11
Dependent Claim
20 words
The apparatus of claim 3 wherein the ballast tamping plate is adjustable to extend obliquely in respect of the track.
Claim 12
Dependent Claim
80 words
The apparatus of claim 3, wherein each of the ballast compacting means further comprises a ballast compacting plate arranged to engage the surface of the ballast in a respective one of the lateral ballast portions, the ballast compacting plate being vertically adjustably mounted on the beam, and spring means between the beam and the ballast compacting plate biased to press the ballast compacting plate against the ballast surface, and the ballast tamping plate extending downwardly from the ballast compacting plate
Claim 13
Dependent Claim
23 words
a frame mounted on the track for mobility thereon, the beam being mounted on the frame for vibratory motion in respect thereto; and
Claim 14
Dependent Claim
23 words
a frame mounted on the track for mobility thereon, the beam being mounted on the frame for vibratory motion in respect thereto; and
Claim 15
Dependent Claim
46 words
The apparatus of claim 1, wherein the ballast leveling means comprises a plurality of ballast leveling plates vertically adjustably mounted on the beam, the ballast leveling plates being arranged laterally adjacent each track rail, and the lower edge of each ballast leveling plate being elastically deformable.
Claim 16
Dependent Claim
21 words
tension springs interconnecting the beam and the frame, the tension springs being biased in the direction of vibration of the beam.
Claim 17
Dependent Claim
21 words
tension springs interconnecting the beam and the frame, the tension springs being biased in the direction of vibration of the beam.
Claim 18
Dependent Claim
23 words
The apparatus of claim 6, further comprising rubber strip means on the lower edge of each ballast leveling plate for imparting elasticity thereto.
Claim 19
Dependent Claim
21 words
The apparatus of claim 6, wherein the ballast leveling plates are adjustable to extend obliquely to the direction of the track.
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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |