US3375880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual boom drill
Assignee: Envirotech Corp
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Filing: 1966-06-07
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Granted: 1968-04-02
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Expires: 1986-06-07
Abstract
No abstract record available.
Inventors
- 👤 Harley G Pyles
- 👤 Charles D Albright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:17
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/08; E21B19/087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
230 words
IN A MOBILE DRILLING MACHINE THE COMBINATION COMPRISING, A MOBILE BODY HAVING A HORIZONTAL DECK PORTION, A SWING FRAME ASSEMBLY PIVOTALLY SECURED TO SAID HORIZONTAL DECK PORTION, A BOOM ASSEMBLY HAVING A FRONT END PORTION AND A REAR END PORTION, SAID BOOM ASSEMBLY REAR END PORTION PIVOTALLY CONNECTED TO SAID SWING FRAME ASSEMBLY FOR VERTICAL PIVOTAL MOVEMENT OF SAID BOOM ASSEMBLY FRONT END PORTION RELATIVE TO SAID SWING FRAME ASSEMBLY, MEANS TO PIVOT SAID BOOM ASSEMBLY ADJACENT SAID REAR END PORTION RELATIVE TO SAID SWING FRAME ASSEMBLY SO THAT SAID BOOM ASSEMBLY FRONT END PORTION MOVES IN A VERTICAL LINEAR PATH, MEANS TO PIVOT SAID SWING FRAME ASSEMBLY IN A PLANE PARALLEL TO SAID HORIZONTAL DECK PORTION AND MOVE SAID BOOM ASSEMBLY FRONT END PORTION IN A LINEAR PATH TRANSVERSE TO THE LONGITUDINAL AXIS OF SAID MOBILE BODY, SAID SWING FRAME ASSEMBLY INCLUDING UNIVERSAL MEANS TO PERMIT LIMITED ROTATION OF SAID SWING FRAME ASSEMBLY ABOUT THE LONGITUDINAL AXIS OF SAID SWING FRAME ASSEMBLY AND RELATIVE TO SAID HORIZONTAL DECK PORTION, AND ACTUATING MEANS CONNECTED TO SAID SWING FRAME ASSEMBLY TO ROTATE SAID SWING FRAME ASSEMBLY ABOUT THE LONGITUDINAL AXIS THEREOF AND RELATIVE TO SAID HORIZONTAL DECK PORTION TO PRESELECTED POSITIONS WHEREIN SAID BOOM FRONT END PORTION MOVES IN A PLANE AT AN ANGLE TO A VERTICAL PLANE AND IN A PLANE PARALLEL TO THE TRANSVERSE AXIS OF SAID MOBILE BODY.
Claim 2
Dependent Claim
230 words
IN A MOBILE DRILLING MACHINE THE COMBINATION COMPRISING, A MOBILE BODY HAVING A HORIZONTAL DECK PORTION, A SWING FRAME ASSEMBLY PIVOTALLY SECURED TO SAID HORIZONTAL DECK PORTION, A BOOM ASSEMBLY HAVING A FRONT END PORTION AND A REAR END PORTION, SAID BOOM ASSEMBLY REAR END PORTION PIVOTALLY CONNECTED TO SAID SWING FRAME ASSEMBLY FOR VERTICAL PIVOTAL MOVEMENT OF SAID BOOM ASSEMBLY FRONT END PORTION RELATIVE TO SAID SWING FRAME ASSEMBLY, MEANS TO PIVOT SAID BOOM ASSEMBLY ADJACENT SAID REAR END PORTION RELATIVE TO SAID SWING FRAME ASSEMBLY SO THAT SAID BOOM ASSEMBLY FRONT END PORTION MOVES IN A VERTICAL LINEAR PATH, MEANS TO PIVOT SAID SWING FRAME ASSEMBLY IN A PLANE PARALLEL TO SAID HORIZONTAL DECK PORTION AND MOVE SAID BOOM ASSEMBLY FRONT END PORTION IN A LINEAR PATH TRANSVERSE TO THE LONGITUDINAL AXIS OF SAID MOBILE BODY, SAID SWING FRAME ASSEMBLY INCLUDING UNIVERSAL MEANS TO PERMIT LIMITED ROTATION OF SAID SWING FRAME ASSEMBLY ABOUT THE LONGITUDINAL AXIS OF SAID SWING FRAME ASSEMBLY AND RELATIVE TO SAID HORIZONTAL DECK PORTION, AND ACTUATING MEANS CONNECTED TO SAID SWING FRAME ASSEMBLY TO ROTATE SAID SWING FRAME ASSEMBLY ABOUT THE LONGITUDINAL AXIS THEREOF AND RELATIVE TO SAID HORIZONTAL DECK PORTION TO PRESELECTED POSITIONS WHEREIN SAID BOOM FRONT END PORTION MOVES IN A PLANE AT AN ANGLE TO A VERTICAL PLANE AND IN A PLANE PARALLEL TO THE TRANSVERSE AXIS OF SAID MOBILE BODY.
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) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |