US3304033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boom mounted drill support
Assignee: Ingersoll Rand Co
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Filing: 1965-03-12
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Granted: 1967-02-14
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Expires: 1985-03-12
Abstract
No abstract record available.
Inventors
- 👤 Robert L Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:16
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/02; E21B7/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
AN APPARATUS FOR MOUNTING A ROCK DRILL COMPRISING: A BOOM; A SUPPORTING MEMBER ADAPTED FOR CARRYING A ROCK DRILL; CONNECTING MEANS CARRIED BY SAID BOOM; MEANS FOR PIVOTALLY CONNECTING SAID SUPPORTING MEMBER TO SAID CONNECTING MEANS; SAID CONNECTING MEANS INCLUDING A PLURALITY OF ATTACHMENT POINTS SEPARATE FROM SAID MEANS FOR PIVOTALLY CONNECTING SAID SUPPORTING MEMBER TO SAID CONNECTING MEANS; MOTOR MEANS CONNECTED TO SAID SUPPORTING MEMBER FOR PIVOTING SAID SUPPORTING MEMBER RELATIVE TO SAID BOOM; AND MEANS FOR CONNECTING SAID MOTOR MEANS TO SAID CONNECTING MEMBER ALTERNATIVELY AT EACH OF TWO OF THE PLURALITY OF ATTACHMENTS POINTS ON SAID CONNECTING MEANS.
Claim 2
Independent Claim
101 words
AN APPARATUS FOR MOUNTING A ROCK DRILL COMPRISING: A BOOM; A SUPPORTING MEMBER ADAPTED FOR CARRYING A ROCK DRILL; CONNECTING MEANS CARRIED BY SAID BOOM; MEANS FOR PIVOTALLY CONNECTING SAID SUPPORTING MEMBER TO SAID CONNECTING MEANS; SAID CONNECTING MEANS INCLUDING A PLURALITY OF ATTACHMENT POINTS SEPARATE FROM SAID MEANS FOR PIVOTALLY CONNECTING SAID SUPPORTING MEMBER TO SAID CONNECTING MEANS; MOTOR MEANS CONNECTED TO SAID SUPPORTING MEMBER FOR PIVOTING SAID SUPPORTING MEMBER RELATIVE TO SAID BOOM; AND MEANS FOR CONNECTING SAID MOTOR MEANS TO SAID CONNECTING MEMBER ALTERNATIVELY AT EACH OF TWO OF THE PLURALITY OF ATTACHMENTS POINTS ON SAID CONNECTING 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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |