US3105482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for drilling holes in hard materials
Assignee: Individual
•
Filing: 1961-09-26
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Granted: 1963-10-01
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Expires: 1981-09-26
Abstract
No abstract record available.
Inventors
- 👤 Mieville Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:40
CPC Classifications
G; G04; G04D; G04D3/00; G04D3/0002; G04D3/0056; G04D3/0058; B; B23; B23B; B23B45/00; B23B45/02; B25; B25D; B25D11/00; B25D11/06; B25D11/064; B28; B28D; B28D5/00; B28D5/02; B28D5/021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A DRILLING MACHINE, THE COMBINATION OF A DRILLSUPPORTING SPINDLE, AN ELECTRIC MOTOR INCLUING A ROTOR RIGID WITH THE SPINDLE AND A STATOR SURROUNDING THE ROTOR, TUBULAR MEMBERS SURROUNDING WITH A SLIGHT CLEARANCE THE SPINDLE ON EACH SIDE OF THE ROTOR AND AT A SMALL DISTANCE FROM THE CORRESPONDING TERMINAL SURFACE OF THE ROTOR TO FORM AXIAL ABUTMENTS FOR SAID ROTOR, ELECTROMAGNETIC MEANS TO IMPART TO THE SPINDLE AND ROTOR IN AXIAL RECIPROCATING VIBRATORY MOVEMENT THE AMPLITUDE OF WHICH IS DEFINED BY ABUTMENTS OF THE ROTOR AGAINST THE TWO TUBULAR MEMBERS IN ALTERNATION, MEANS FEEDING COMPRESSED AIR INTO THE CLEARANCES BETWEEN THE SPINDLE AND THE TUBULAR MEMBERS TO FORM AIR BEARINGS FOR SAID SPINDLE, SAID AIR ESCAPING AT LEAST PARTLY BETWEEN THE TERMINAL SURFACES OF THE ROTOR AND THE CORRESPONDING TUBULAR MEMBERS.
Claim 2
Dependent Claim
132 words
IN A DRILLING MACHINE, THE COMBINATION OF A DRILLSUPPORTING SPINDLE, AN ELECTRIC MOTOR INCLUING A ROTOR RIGID WITH THE SPINDLE AND A STATOR SURROUNDING THE ROTOR, TUBULAR MEMBERS SURROUNDING WITH A SLIGHT CLEARANCE THE SPINDLE ON EACH SIDE OF THE ROTOR AND AT A SMALL DISTANCE FROM THE CORRESPONDING TERMINAL SURFACE OF THE ROTOR TO FORM AXIAL ABUTMENTS FOR SAID ROTOR, ELECTROMAGNETIC MEANS TO IMPART TO THE SPINDLE AND ROTOR IN AXIAL RECIPROCATING VIBRATORY MOVEMENT THE AMPLITUDE OF WHICH IS DEFINED BY ABUTMENTS OF THE ROTOR AGAINST THE TWO TUBULAR MEMBERS IN ALTERNATION, MEANS FEEDING COMPRESSED AIR INTO THE CLEARANCES BETWEEN THE SPINDLE AND THE TUBULAR MEMBERS TO FORM AIR BEARINGS FOR SAID SPINDLE, SAID AIR ESCAPING AT LEAST PARTLY BETWEEN THE TERMINAL SURFACES OF THE ROTOR AND THE CORRESPONDING TUBULAR MEMBERS.
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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |