US3109635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable boring head for continuous mining machine
Assignee: Goodman Manufacturing Co LP
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Filing: 1960-11-16
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Granted: 1963-11-05
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Expires: 1980-11-16
Abstract
No abstract record available.
Inventors
- 👤 Ernst R Bergmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:08
CPC Classifications
E; E21; E21C; E21C27/00; E21C27/20; E21C27/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
135 words
IN A BORING ARM ASSEMBLY PARTICULARLY ADAPTED FOR CONTINUOUS MINING MACHINES OF THE BORING TYPE, A HOLLOW SHAFT HAVING A PLURALITY OF BORING ARMS EXTENDING RADIALLY THEREFROM, A TELESCOPIC ARM TELESCOPICALLY MOUNTED IN EACH BORING ARM AND HAVING AN ARCUATE CUTTER PROJECTING FORWARDLY THEREFROM, A SLIDE AXIALLY MOVABLE ALONG SAID HOLLOW SHAFT, MEANS FOR MOVING SAID SLIDE ALONG SAID SHAFT AND HOLDING SAID SLIDE IN POSITION WITH RESPECT TO SAID SHAFT, LEVER MEANS IN ASSOCIATION WITH EACH BORING ARM AND PIVOTALLY MOUNTED THEREIN, AND LINKAGE CONNECTIONS BETWEEN SAID SLIDE AND SAID LEVER MEANS AND SAID LEVER MEANS AND SAID BORING ARMS, FOR ADJUSTING SAID BORING ARMS RADIALLY WITH RESPECT TO SAID SHAFT AND FOR HOLDING SAID BORING ARMS IN ADJUSTED RELATION WITH RESPECT TO SAID SHAFT AND TRANSMITTING THE CUTTING LOADS AXIALLY OF SAID SLIDE.
Claim 2
Dependent Claim
135 words
IN A BORING ARM ASSEMBLY PARTICULARLY ADAPTED FOR CONTINUOUS MINING MACHINES OF THE BORING TYPE, A HOLLOW SHAFT HAVING A PLURALITY OF BORING ARMS EXTENDING RADIALLY THEREFROM, A TELESCOPIC ARM TELESCOPICALLY MOUNTED IN EACH BORING ARM AND HAVING AN ARCUATE CUTTER PROJECTING FORWARDLY THEREFROM, A SLIDE AXIALLY MOVABLE ALONG SAID HOLLOW SHAFT, MEANS FOR MOVING SAID SLIDE ALONG SAID SHAFT AND HOLDING SAID SLIDE IN POSITION WITH RESPECT TO SAID SHAFT, LEVER MEANS IN ASSOCIATION WITH EACH BORING ARM AND PIVOTALLY MOUNTED THEREIN, AND LINKAGE CONNECTIONS BETWEEN SAID SLIDE AND SAID LEVER MEANS AND SAID LEVER MEANS AND SAID BORING ARMS, FOR ADJUSTING SAID BORING ARMS RADIALLY WITH RESPECT TO SAID SHAFT AND FOR HOLDING SAID BORING ARMS IN ADJUSTED RELATION WITH RESPECT TO SAID SHAFT AND TRANSMITTING THE CUTTING LOADS AXIALLY OF SAID SLIDE.
Claim 3
Dependent Claim
123 words
IN A BORING ARM ASSEMBLY PARTICULARLY ADAPTED FOR CONTINUOUS MINING MACHINES OF THE BORING TYPE, A HOLLOW SHAFT HAVING A PLURALITY OF BORING ARMS EXTENDING RADIALLY THEREFROM, A TELESCOPIC ARM TELESCOPICALLY MOUNTED IN EACH BORING ARM AND HAVING AN ARCUATE CUTTER PROJECTING FORWARDLY THEREFROM, A SLIDE AXIALLY MOVABLE ALONG SAID HOLLOW SHAFT, A TRANSLATIONALLY MOVABLE POWER MEMBER FOR MOVING SAID SLIDE ALONG SAID SHAFT, OPERATIVE CONNECTIONS BETWEEN SAID SLIDE AND SAID TELESCOPIC ARMS FOR RADIALLY ADJUSTING SAID TELESCOPIC ARMS RELATIVE TO SAID HOLLOW SHAFT, SAID TELESCOPIC ARMS BEING MOUNTED IN SAID BORING ARMS IN AXIALLY ALIGNED RELATION WITH RESPECT TO EACH OTHER AND BEING LONGITUDINALLY SLOTTED AND HAVING A SLIDABLE INTERLEAVING ENGAGEMENT WITH EACH OTHER IN THE RETRACTED POSITIONS OF SAID TELESCOPIC ARMS.
Claim 4
Dependent Claim
123 words
IN A BORING ARM ASSEMBLY PARTICULARLY ADAPTED FOR CONTINUOUS MINING MACHINES OF THE BORING TYPE, A HOLLOW SHAFT HAVING A PLURALITY OF BORING ARMS EXTENDING RADIALLY THEREFROM, A TELESCOPIC ARM TELESCOPICALLY MOUNTED IN EACH BORING ARM AND HAVING AN ARCUATE CUTTER PROJECTING FORWARDLY THEREFROM, A SLIDE AXIALLY MOVABLE ALONG SAID HOLLOW SHAFT, A TRANSLATIONALLY MOVABLE POWER MEMBER FOR MOVING SAID SLIDE ALONG SAID SHAFT, OPERATIVE CONNECTIONS BETWEEN SAID SLIDE AND SAID TELESCOPIC ARMS FOR RADIALLY ADJUSTING SAID TELESCOPIC ARMS RELATIVE TO SAID HOLLOW SHAFT, SAID TELESCOPIC ARMS BEING MOUNTED IN SAID BORING ARMS IN AXIALLY ALIGNED RELATION WITH RESPECT TO EACH OTHER AND BEING LONGITUDINALLY SLOTTED AND HAVING A SLIDABLE INTERLEAVING ENGAGEMENT WITH EACH OTHER IN THE RETRACTED POSITIONS OF SAID TELESCOPIC ARMS.
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) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |