US4785512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for repairing and sealing conduits
Assignee: ROHR-SANIERUNGS-SERVICE AG
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Filing: 1987-07-01
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Granted: 1988-11-22
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Expires: 2007-07-01
Abstract
Abstract The invention in question is a repairing machine, which is suited to repairing damaged conduits which are inaccessible for repair work. This repairing machine is remote-controlled and monitored with television cameras. At the head of the driving carriage, various devices, which are necessary for the repairs, can be attached to a motor-driven rotatable toolhead. A simple construction of the movable head has made it possible to accomplish all of the necessary movements with uncomplicated mechanics, and at the same time, to forego a tedious slide coupling for the control lines without letting them get tangled with the device. Therefore, with this invention, the production costs for the whole device could be lowered and, likewise, the proneness to repairs could be reduced.
Inventors
- 👤 Alwin Sigel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:31
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/18; F16L55/26; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5199; Y10T409/00; Y10T409/30; Y10T409/304424
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
134 words
A remote control device for repairing and/or sealing conduits, said device comprising: a wheeled undercarriage, said undercarriage being movable into the conduits and having a central longitudinal axis; a rotatable hollow shaft arranged within said undercarriage and concentric to said undercarriage, said shaft being rotatable around said central axis; a motor for driving the rotational movement of said shaft; and a plurality of mounting components for interchangeably mounting the desired repairing and/or sealing equipment, said components being fitted at one end of said shaft, the supply lines for the repairing and/or sealing equipment being torsionally flexible and at least one end thereof being located within said shaft, means providing for at least one of said mounting components to be movable radially from the shaft within the conduit to effect the repair and/or sealing work.
Claim 2
Dependent Claim
134 words
A remote control device for repairing and/or sealing conduits, said device comprising: a wheeled undercarriage, said undercarriage being movable into the conduits and having a central longitudinal axis; a rotatable hollow shaft arranged within said undercarriage and concentric to said undercarriage, said shaft being rotatable around said central axis; a motor for driving the rotational movement of said shaft; and a plurality of mounting components for interchangeably mounting the desired repairing and/or sealing equipment, said components being fitted at one end of said shaft, the supply lines for the repairing and/or sealing equipment being torsionally flexible and at least one end thereof being located within said shaft, means providing for at least one of said mounting components to be movable radially from the shaft within the conduit to effect the repair and/or sealing work.
Claim 3
Dependent Claim
29 words
Machine according to claim 1, characterized by the fact that, on said end, the hollow shaft (5) bears a radial flange, on which the mounting components (6) are mounted.
Claim 4
Dependent Claim
65 words
Machine according to claim 1, characterized by the fact that each of the movable mounting components (6) is an arm of an angle lever which can be swivelled about the axis substantially perpendicular to the axis of the hollow shaft (5) and on whose other arm a motor-driven, axially movable connecting rod (1), placed substantially parallel to the axis of the hollow shaft (5), operates.
Claim 5
Dependent Claim
35 words
Machine according to one of the claim 1, characterized by the fact that on said end of the hollow shaft (5), a carrier is mounted for a surveying television camera which cannot be radially shifted.
Claim 6
Dependent Claim
23 words
Machine according to one of the claim 1, characterized by the fact that the axles of the wheels (9) have individual drive motors.
Claim 7
Dependent Claim
12 words
A device according to claim 1, wherein said undercarriage is manually driven.
Claim 8
Dependent Claim
12 words
A device according to claim 1, wherein said undercarriage is motor driven.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-22 | 1992-05-23 | 1992-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-22 | 1996-05-23 | 1996-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-22 | 2000-05-23 | 2000-11-22 | $7700.00 | Window Closed / Lapsed |