US3387893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gallery driving machine with radially movable roller drills
Assignee: Beteiligungs und Patentverwaltungs GmbH
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Filing: 1966-03-24
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Granted: 1968-06-11
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Expires: 1986-03-24
Abstract
No abstract record available.
Inventors
- 👤 Hoever Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:04
CPC Classifications
E; E21; E21D; E21D9/00; E21D9/10; E21D9/11; E21D9/112; E21D9/115
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN EXCAVATION DRIVING MACHINE, ESPECIALLY FOR DRIVING GALLERIES, TUNNELS, AND MINE SHAFTS, WHICH INCLUDES ROTATABLE SHAFT MEANS, ADVANCE BOREHOLE DRILLING MEANS ROTATABLY CONNECTED TO SAID SHAFT MEANS FOR DRILLING AN ADVANCE BOREHOLE, ROTATABLE SUPPORTING MEANS EXTENDING AROUND SAID SHAFT MEANS IN SUBSTANTIALLY COAXIAL RELATIONSHIP THERETO AND ADAPTED ROTATABLY TO SUPPORT ROLLER DRILLS FOR ENLARGING BY MOVEMENT IN RADIAL DIRECTION THE ADVANCE BOREHOLE DRILLED BY SAID ADVANCE BOREHOLE DRILLING MEANS, AND MEANS OPERATIVELY CONNECTED TO SAID SUPPORTING MEANS AND OPERABLE TO DISPLACE SAID SUPPORTING MEANS AND ROLLER DRILLS SUPPORTED THEREBY IN RADIAL DIRECTION WITH REGARD TO THE LONGITUDINAL AXIS OF SAID SHAFT MEANS.
Claim 2
Dependent Claim
102 words
AN EXCAVATION DRIVING MACHINE, ESPECIALLY FOR DRIVING GALLERIES, TUNNELS, AND MINE SHAFTS, WHICH INCLUDES ROTATABLE SHAFT MEANS, ADVANCE BOREHOLE DRILLING MEANS ROTATABLY CONNECTED TO SAID SHAFT MEANS FOR DRILLING AN ADVANCE BOREHOLE, ROTATABLE SUPPORTING MEANS EXTENDING AROUND SAID SHAFT MEANS IN SUBSTANTIALLY COAXIAL RELATIONSHIP THERETO AND ADAPTED ROTATABLY TO SUPPORT ROLLER DRILLS FOR ENLARGING BY MOVEMENT IN RADIAL DIRECTION THE ADVANCE BOREHOLE DRILLED BY SAID ADVANCE BOREHOLE DRILLING MEANS, AND MEANS OPERATIVELY CONNECTED TO SAID SUPPORTING MEANS AND OPERABLE TO DISPLACE SAID SUPPORTING MEANS AND ROLLER DRILLS SUPPORTED THEREBY IN RADIAL DIRECTION WITH REGARD TO THE LONGITUDINAL AXIS OF SAID SHAFT MEANS.
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) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |