Patent US3322378A successfully refreshed from Google Patents.
US3322378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tripod drill support
Assignee: Sullivan Machinery Co
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Filing: 1965-01-13
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Granted: 1967-05-30
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Expires: 1985-01-13
Abstract
No abstract record available.
Inventors
- 👤 Charles T Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:31
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A TRIPOD SUPPORT FOR A DRILLING DEVICE COMPRISING: A MOBILE SUPPORT HAVING AN ELONGATED GENERALLY HORIZONTAL FRAME; AN ELONGATED TRUNNION MEMBER HAVING A BOTTOM END THEREOF UNIVERSALLY PIVOTABLY MOUNTED ON A FORWARD PORTION OF SAID FRAME AND EXTENDING UPWARDLY THEREFROM; A PAIR OF EXTENSIBLE LEG MEMBERS HAVING RESPECTIVE ONE ENDS UNIVERSALLY PIVOTABLY SECURED TO REARWARD PORTIONS OF SAID FRAME TRANSVERSELY SPACED FROM EACH OTHER, OTHER ENDS OF SAID LEG MEMBERS BEING UNIVERSALLY PIVOTABLY SECURED TO SAID TRUNNION MEMBER AT POINTS UPWARDLY SPACED FROM SAID FRAME; AN ELONGATED GUIDE FRAME MEANS FOR SLIDABLY MOUNTING SAID GUIDE FRAME ON SAID TRUNNION MEMBER FOR LONGITUDINAL MOVEMENT THEREALONG.
Claim 2
Dependent Claim
104 words
A TRIPOD SUPPORT FOR A DRILLING DEVICE COMPRISING: A MOBILE SUPPORT HAVING AN ELONGATED GENERALLY HORIZONTAL FRAME; AN ELONGATED TRUNNION MEMBER HAVING A BOTTOM END THEREOF UNIVERSALLY PIVOTABLY MOUNTED ON A FORWARD PORTION OF SAID FRAME AND EXTENDING UPWARDLY THEREFROM; A PAIR OF EXTENSIBLE LEG MEMBERS HAVING RESPECTIVE ONE ENDS UNIVERSALLY PIVOTABLY SECURED TO REARWARD PORTIONS OF SAID FRAME TRANSVERSELY SPACED FROM EACH OTHER, OTHER ENDS OF SAID LEG MEMBERS BEING UNIVERSALLY PIVOTABLY SECURED TO SAID TRUNNION MEMBER AT POINTS UPWARDLY SPACED FROM SAID FRAME; AN ELONGATED GUIDE FRAME MEANS FOR SLIDABLY MOUNTING SAID GUIDE FRAME ON SAID TRUNNION MEMBER FOR LONGITUDINAL MOVEMENT THEREALONG.
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) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |