US3669025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tamper unit for mobile track tamping machine
Assignee: Franz Plasser Bahnbaumaschinen Industrie GmbH
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Filing: 1970-07-17
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Granted: 1972-06-13
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Expires: 1990-07-17
Abstract
Abstract A structural tamper unit is vertically movably mounted on a mobile track tamping machine. The tamping tool carrier is pivotal in a plane parallel to the track, and a hydraulicaLly operated drive means for vibrating the tamping tool carrier is mounted directly on the carrier.
Inventors
- 👤 Franz Plasser
- 👤 Josef Theurer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:47
CPC Classifications
E; E01; E01B; E01B27/00; E01B27/12; E01B27/13; E01B27/16; E01B27/17; E01B2203/00; E01B2203/12
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
146 words
A structural tamper unit for a mobile track tamping machine mounted for mobility on a track including rails supported on ties extending transversely to the elongation of the track, means being provided for vertically adjustably mounting the tamper unit on the tamping machine, and the tamper unit comprising 1. a tamping tool; 2. a carrier for the tamping tool, a. the tamping tool carrier including a holder for the tamping tool; 3. means independent of said vertical adjusting means for pivoting the carrier holding the tamping tool as a unit in a vertical plane substantially parallel to the track elongation and in the direction of the track elongation towards and away from an adjacent one of said ties; and 4. hydraulically operated drive means for vibrating the carrier holding the tamping tool, a. the hydraulically operated drive means being mounted directly on the tamping tool carrier.
Claim 2
Dependent Claim
146 words
A structural tamper unit for a mobile track tamping machine mounted for mobility on a track including rails supported on ties extending transversely to the elongation of the track, means being provided for vertically adjustably mounting the tamper unit on the tamping machine, and the tamper unit comprising 1. a tamping tool; 2. a carrier for the tamping tool, a. the tamping tool carrier including a holder for the tamping tool; 3. means independent of said vertical adjusting means for pivoting the carrier holding the tamping tool as a unit in a vertical plane substantially parallel to the track elongation and in the direction of the track elongation towards and away from an adjacent one of said ties; and 4. hydraulically operated drive means for vibrating the carrier holding the tamping tool, a. the hydraulically operated drive means being mounted directly on the tamping tool carrier.
Claim 3
Dependent Claim
18 words
a carrier for the tamping tool, a. the tamping tool carrier including a holder for the tamping tool;
Claim 4
Dependent Claim
18 words
a carrier for the tamping tool, a. the tamping tool carrier including a holder for the tamping tool;
Claim 5
Dependent Claim
14 words
The structural tamper unit of claim 1, wherein the pivoting means is hydraulically operated.
Claim 6
Dependent Claim
18 words
a carrier for the tamping tool, (a) the tamping tool carrier including a holder for the tamping tool;
Claim 7
Dependent Claim
18 words
a carrier for the tamping tool, (a) the tamping tool carrier including a holder for the tamping tool;
Claim 8
Dependent Claim
48 words
means for pivoting the carrier holding the tamping tool as a unit in a vertical plane substantially parallel to the track elongation and in the track elongation direction towards an adjacent ones of said ties, b. the tamping tool of said tamper units being pivotal towards each other;
Claim 9
Dependent Claim
48 words
means for pivoting the carrier holding the tamping tool as a unit in a vertical plane substantially parallel to the track elongation and in the track elongation direction towards an adjacent ones of said ties, b. the tamping tool of said tamper units being pivotal towards each other;
Claim 10
Dependent Claim
77 words
The structural tamper unit of claim 1, wherein the hydraulically operated drive means comprises a drive shaft extending transversely of the track, a vibration producing structural part journaled on the drive shaft, and a guide member engaging the structural part and mounted on the carrier holding the tamping tool for movement therewith, the structural part vibrating the guide member and the carrier in vibratory motions substantially parallel to the pivoting plane upon rotation of the drive shaft.
Claim 11
Dependent Claim
47 words
means independent of said vertical adjusting means for pivoting the carrier holding the tamping tool as a unit in a vertical plane substantially parallel to the track elongation and in the direction of the track elongation towards and away from an adjacent one of said ties; and
Claim 12
Dependent Claim
47 words
means independent of said vertical adjusting means for pivoting the carrier holding the tamping tool as a unit in a vertical plane substantially parallel to the track elongation and in the direction of the track elongation towards and away from an adjacent one of said ties; and
Claim 13
Dependent Claim
26 words
hydraulically operated drive means for vibrating the carrier holding the tamping tool, a. the hydraulically operated drive means being mounted directly on the tamping tool carrier.
Claim 14
Dependent Claim
26 words
hydraulically operated drive means for vibrating the carrier holding the tamping tool, a. the hydraulically operated drive means being mounted directly on the tamping tool carrier.
Claim 15
Dependent Claim
27 words
The structural tamper unit of claim 3, wherein the structural part is a slide ring and the guide member is an annular bearing for the slide ring.
Claim 16
Dependent Claim
32 words
hydraulically operated drive means for vibrating the carrier holding the tamping tool of one of said tamper units, c. the hydraulically operated drive means being mounted directly on the tamping tool carrier;
Claim 17
Dependent Claim
32 words
hydraulically operated drive means for vibrating the carrier holding the tamping tool of one of said tamper units, c. the hydraulically operated drive means being mounted directly on the tamping tool carrier;
Claim 18
Dependent Claim
19 words
drive means for vibrating the carrier holding the tamping tool of the other one of said tamper units; and
Claim 19
Dependent Claim
19 words
drive means for vibrating the carrier holding the tamping tool of the other one of said tamper units; and
Claim 20
Dependent Claim
46 words
A mobile track tamping machine mounted for mobility on a track including rails supported on ties extending transversely to the elongation of the track, comprising a hydromechanically operable tamping assembly vertically adjustably mounted on the machine, the assembly comprising two structural tamper units, each unit including
Claim 21
Dependent Claim
46 words
A mobile track tamping machine mounted for mobility on a track including rails supported on ties extending transversely to the elongation of the track, comprising a hydromechanically operable tamping assembly vertically adjustably mounted on the machine, the assembly comprising two structural tamper units, each unit including
Claim 22
Dependent Claim
24 words
transmission means interconnecting the drive means of said tamper units for transmitting power from the hydraulically operated drive means to the other drive means.
Claim 23
Dependent Claim
24 words
transmission means interconnecting the drive means of said tamper units for transmitting power from the hydraulically operated drive means to the other drive means.
Claim 24
Dependent Claim
44 words
The mobile track tamping machine of claim 5, further comprising means for pivoting the tamping assembly, associated with a respective one of the rails independently of the tamping assembly associated with the other rail about an axis perpendicular to the plane of the track.
Claim 25
Dependent Claim
49 words
The mobile track tamping machine of claim 6, wherein two of said tamping assemblies are associated with a respective one of said rails, the tamping assemblies being arranged on respective sides of the rails and one of the tamping assemblies associated with each rail being pivotal about said axis.
Claim 26
Dependent Claim
32 words
The mobile track tamping machine of claim 6, wherein the structural tamper units are symmetrically arranged in said assembly and said axis extends in a vertical plane of symmetry of the assembly.
Claim 27
Dependent Claim
41 words
The mobile track tamping machine of claim 5, further comprising a substaNtially fixed axle supporting the carrier holding the tamping tool for pivoting about said axle, and the hydraulically operated drive means has an output shaft substantially coaxial with said axle.
Claim 28
Dependent Claim
20 words
The mobile track tamping machine of claim 5, further comprising means for moving the tamping assembly transversely of the track.
Claim 29
Dependent Claim
44 words
The mobile track tamping machine of claim 10, wherein two of said tamping assemblies are associated with each of said rails, the tamping assemblies being arranged on respective sides of each rail and one of said assemblies associated with each rail being transversely movable.
Claim 30
Dependent Claim
36 words
The mobile track tamping machine of claim 5, wherein the pivoting means is hydraulically operated, and the hydraulically operated drive means and the hydraulically operated pivoting means are connected to a single hydraulic fluid supply circuit.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |