Patent US3869907A successfully refreshed from Google Patents.
US3869907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Track surveying apparatus
Assignee: Franz Plasser Bahnbaumaschinen Industrie GmbH
•
Filing: 1974-02-19
•
Granted: 1975-03-11
•
Expires: 1994-02-19
Abstract
Abstract Two track engaging devices spaced from each other in the direction of track elongation are mounted on a track survey car and means is provided for applying a mechanical force of different magnitude to each device to change the position of the track engaged thereby. A reference is associated with the track for determining the position changes in relation thereto and a measuring system is associated with the track engaging devices for continuously and simultaneously measuring any position changes resulting from the applied mechanical forces. The measuring system produces measuring signals corresponding to each of the measured position changes and includes a differentiating unit for producing a signal corresponding to the difference between any two simultaneously produced measuring signals.
Inventors
- 👤 Franz Plasser
- 👤 Josef Theurer
- 👤 Egon Schubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:21
CPC Classifications
B; B61; B61K; B61K9/00; B61K9/08
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
163 words
An apparatus mounted on a vehicle arranged for mobility on a track in the direction of track elongation for determining the physical condition of successive sections of the track over which the vehicle moves, comprising 1. two track engaging devices spaced from each other in the direction of track elongation; 2. means for applying a mechanical force of different magnitude to each of the track engaging devices to change the position of the track engaged by the devices, the position change being a function of the applied force; 3. a reference associated with the track for determining the position changes in relation thereto; and 4. a measuring system associated with the track eNgaging devices for continuously and simultaneously measuring any position changes resulting from the applied mechanical forces, the measuring system producing measuring signals corresponding to each of the measured position changes and including a. a differentiating unit for producing a signal corresponding to the difference between any two simultaneously produced measuring signals.
Claim 2
Independent Claim
163 words
An apparatus mounted on a vehicle arranged for mobility on a track in the direction of track elongation for determining the physical condition of successive sections of the track over which the vehicle moves, comprising 1. two track engaging devices spaced from each other in the direction of track elongation; 2. means for applying a mechanical force of different magnitude to each of the track engaging devices to change the position of the track engaged by the devices, the position change being a function of the applied force; 3. a reference associated with the track for determining the position changes in relation thereto; and 4. a measuring system associated with the track eNgaging devices for continuously and simultaneously measuring any position changes resulting from the applied mechanical forces, the measuring system producing measuring signals corresponding to each of the measured position changes and including a. a differentiating unit for producing a signal corresponding to the difference between any two simultaneously produced measuring signals.
Claim 3
Independent Claim
35 words
An apparatus mounted on a vehicle arranged for mobility on a track in the direction of track elongation for determining the physical condition of successive sections of the track over which the vehicle moves, comprising
Claim 4
Independent Claim
35 words
An apparatus mounted on a vehicle arranged for mobility on a track in the direction of track elongation for determining the physical condition of successive sections of the track over which the vehicle moves, comprising
Claim 5
Dependent Claim
14 words
two track engaging devices spaced from each other in the direction of track elongation;
Claim 6
Dependent Claim
14 words
two track engaging devices spaced from each other in the direction of track elongation;
Claim 7
Dependent Claim
37 words
means for applying a mechanical force of different magnitude to each of the track engaging devices to change the position of the track engaged by the devices, the position change being a function of the applied force;
Claim 8
Dependent Claim
37 words
means for applying a mechanical force of different magnitude to each of the track engaging devices to change the position of the track engaged by the devices, the position change being a function of the applied force;
Claim 9
Dependent Claim
21 words
The apparatus of claim 1, wherein the track engaging devices are axles with flanged wheels engaging the rails of the track.
Claim 10
Dependent Claim
12 words
The apparatus of claim 1, wherein the reference is a reference line.
Claim 11
Dependent Claim
15 words
a reference associated with the track for determining the position changes in relation thereto; and
Claim 12
Dependent Claim
15 words
a reference associated with the track for determining the position changes in relation thereto; and
Claim 13
Dependent Claim
58 words
a measuring system associated with the track eNgaging devices for continuously and simultaneously measuring any position changes resulting from the applied mechanical forces, the measuring system producing measuring signals corresponding to each of the measured position changes and including a. a differentiating unit for producing a signal corresponding to the difference between any two simultaneously produced measuring signals.
Claim 14
Dependent Claim
58 words
a measuring system associated with the track eNgaging devices for continuously and simultaneously measuring any position changes resulting from the applied mechanical forces, the measuring system producing measuring signals corresponding to each of the measured position changes and including a. a differentiating unit for producing a signal corresponding to the difference between any two simultaneously produced measuring signals.
Claim 15
Dependent Claim
12 words
The apparatus of claim 1, wherein the mechanical forces are vertically directed.
Claim 16
Dependent Claim
12 words
The apparatus of claim 1, wherein the mechanical forces are horizontally directed.
Claim 17
Dependent Claim
13 words
The apparatus of claim 1, wherein the mechanical force is a vibratory force.
Claim 18
Dependent Claim
20 words
The apparatus of claim 1, further comprising computer means connected to the differentiating unit and receiving the differentiated signal therefrom.
Claim 19
Dependent Claim
47 words
The apparatus of claim 1, wherein the vehicle has a frame supported on undercarriages running on the track and comprising satellite carriages having said track engaging devices and spaced from the undercarriages in the direction of track elongation, the satellite carriages being supported on the vehicle frame.
References Cited (Backward Citations)
US3481183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |