US4179216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring the profile of a railroad tunnel
Assignee: Franz Plasser Bahnbaumaschinen Industrie GmbH
•
Filing: 1978-05-18
•
Granted: 1979-12-18
•
Expires: 1998-05-18
Abstract
Abstract A mobile apparatus for measuring the profile of a railroad tunnel comprising a car mounted for mobility on the railroad track, a beam emitter and receiver instrument capable of continuously receiving a signal corresponding to the distance of the tunnel profile from the instrument, a rotatable axle supporting the instrument on the car for pivoting about an axis extending parallel to the longitudinal track axis, and a drive arranged to pivot the instrument about the axis extending parallel to the track axis whereby the instrument may sweep the profile and continuously receive the signal.
Inventors
- 👤 Josef Theurer
- 👤 Klaus Riessberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:07
CPC Classifications
B; B61; B61K; B61K9/00; G; G01; G01B; G01B21/00; G01B21/20; G01C; G01C7/00; G01C7/06
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
184 words
A mobile apparatus for measuring and indicating the profile of a bounded space surrounding a track having two rails and a longitudinal axis intermediate and parallel to the track rails, which comprises (a) a distance measuring instrument capable of continuously receiving a signal corresponding to the distance of the profile of the bounded space from the instrument, (b) a car mounted for mobility on the track rails and supporting the instrument for pivoting about an axis extending parallel to the longitudinal track axis, (c) a drive arranged to pivot the instrument about the axis extending parallel to the longitudinal track axis whereby the instrument may sweep the profile of the bounded space and continuously receive the signal, (1) the drive comprising a rotatable axle extending in the pivoting axis, (d) a drive for moving the car on the track rails, (e) a transmission means connecting the rotatable axle to the car drive for pivoting the distance measuring instrument in synchronism with the car drive, and (f) an indicating instrument operatively connected to the distance measuring instrument and capable of indicating the signal received thereby.
Claim 2
Dependent Claim
184 words
A mobile apparatus for measuring and indicating the profile of a bounded space surrounding a track having two rails and a longitudinal axis intermediate and parallel to the track rails, which comprises (a) a distance measuring instrument capable of continuously receiving a signal corresponding to the distance of the profile of the bounded space from the instrument, (b) a car mounted for mobility on the track rails and supporting the instrument for pivoting about an axis extending parallel to the longitudinal track axis, (c) a drive arranged to pivot the instrument about the axis extending parallel to the longitudinal track axis whereby the instrument may sweep the profile of the bounded space and continuously receive the signal, (1) the drive comprising a rotatable axle extending in the pivoting axis, (d) a drive for moving the car on the track rails, (e) a transmission means connecting the rotatable axle to the car drive for pivoting the distance measuring instrument in synchronism with the car drive, and (f) an indicating instrument operatively connected to the distance measuring instrument and capable of indicating the signal received thereby.
Claim 3
Dependent Claim
19 words
The mobile apparatus of claim 1, wherein the distance measuring instrument is an emitter and receiver of radiated energy.
Claim 4
Dependent Claim
18 words
The mobile apparatus of claim 2, wherein the distance measuring instrument is a radar beam emitter and receiver.
Claim 5
Dependent Claim
18 words
The mobile apparatus of claim 2, wherein the distance measuring instrument is a laser beam emitter and receiver.
Claim 6
Dependent Claim
33 words
The mobile apparatus of claim 1, wherein the car has a front end, and comprising support means projecting forwardly of the front end for supporting the distance measuring instrument forwardly of the car.
Claim 7
Dependent Claim
37 words
The mobile apparatus of claim 1, wherein the pivoting axis of the distance measuring instrument is the center of a circle circumscribed about the car in a plane extending transversely thereto and perpendicularly to the pivoting axis.
Claim 8
Dependent Claim
20 words
The mobile apparatus of claim 6, wherein the track rails have heads and the rail heads are within the circle.
Claim 9
Dependent Claim
18 words
The mobile apparatus of claim 1, wherein the transmission means is a gear having an adjustable transmission ratio.
Claim 10
Dependent Claim
25 words
The mobile apparatus of claim 1, wherein the indicating instrument includes a recording instrument capable of making a graphic record of the continuously received signal.
Claim 11
Dependent Claim
50 words
The mobile apparatus of claim 9, further comprising a pendulum mounted on the car for pivoting in a plane extending perpendicularly to the axes and operatively connected to the recording instrument for indicating the angular position of the distance measuring instrument in relation to a vertical extending in said plane.
Claim 12
Dependent Claim
31 words
The mobile apparatus of claim 5, wherein the distance measuring instrument, the support means and the drive therefor constitute a separate structural unit mountable on the front end of the car.
References Cited (Backward Citations)
US3168023A
Cited
US3620625A
Cited
US3869907A
Cited
CH522204A
Cited
US3705772A
Cited
US3869805A
Cited
US3950096A
Cited
US4063283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-12-17 | 1983-06-18 | 1983-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-17 | 1987-06-18 | 1987-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-17 | 1991-06-18 | 1991-12-18 | $7700.00 | Window Closed / Lapsed |