US3276327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine tools
Assignee: BAE Systems PLC
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Filing: 1964-04-27
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Granted: 1966-10-04
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Expires: 1984-04-27
Abstract
No abstract record available.
Inventors
- 👤 Arrowsmith James
- 👤 States Ronald Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:14
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/002; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/48; B23Q1/50; B23Q1/54; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/300896
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A PROGRAMME-CONTROLLED MILLING MACHINE WHEREIN THE MUTUAL ARRANGEMENT OF THE CUTTER AND WORK-TABLE IS SUCH THAT, DURING ANY ONE MACHINING OPERATION, THE AXIS OF THE CUTTER, CONSIDERED AT ZERO INCLINATION, MAINTAINS A CONSTANT OFFSET WITH RESPECT TO THE CUTTER DATUM LINE TO WHICH THE CONTROL PROGRAMME IS REFERENCED, THE DATUM LINE BEING REPRESENTED BY A NORMALLY VERTICAL LINE PERPENDICULAR TO THE PLANE OF RELATIVE MOVEMENT OF THE CUTTER AND WORK-TABLE AND PASSING THROUGH THE POINT WHERE THE CUTTER IS ACTUALLY OPERATING ON THE WORK, AND THE CUTTER MOUNTING IN SUCH AS TO ENABLE THE CUTTER TO TILT ABOUT AN AXIS THAT INTERSECTS SAID DATUM LINE AND IS COINCIDENT WITH THE HORIZONTAL TANGENT TO THE POINT OF CUTTING, SAID CUTTER MOUNTING COMPRISING A FIRST ROTOR MEMBER, A SECOND ROTOR MEMBER AND A CUTTER-CARRIER MOUNTED ON SAID FIRST ROTOR MEMBER FOR ANGULAR MOVEMENT RELATIVELY THERETO, SAID FIRST ROTOR MEMBER BEING ITSELF MOUNTED TO MOVE ANGULARLY RELATIVELY TO SAID SECOND ROTOR MEMBER, AND SAID SECOND ROTOR MEMBER BEING MOUNTED FOR ROTATION ABOUT SAID VERTICAL DATUM LINE.
Claim 2
Dependent Claim
173 words
A PROGRAMME-CONTROLLED MILLING MACHINE WHEREIN THE MUTUAL ARRANGEMENT OF THE CUTTER AND WORK-TABLE IS SUCH THAT, DURING ANY ONE MACHINING OPERATION, THE AXIS OF THE CUTTER, CONSIDERED AT ZERO INCLINATION, MAINTAINS A CONSTANT OFFSET WITH RESPECT TO THE CUTTER DATUM LINE TO WHICH THE CONTROL PROGRAMME IS REFERENCED, THE DATUM LINE BEING REPRESENTED BY A NORMALLY VERTICAL LINE PERPENDICULAR TO THE PLANE OF RELATIVE MOVEMENT OF THE CUTTER AND WORK-TABLE AND PASSING THROUGH THE POINT WHERE THE CUTTER IS ACTUALLY OPERATING ON THE WORK, AND THE CUTTER MOUNTING IN SUCH AS TO ENABLE THE CUTTER TO TILT ABOUT AN AXIS THAT INTERSECTS SAID DATUM LINE AND IS COINCIDENT WITH THE HORIZONTAL TANGENT TO THE POINT OF CUTTING, SAID CUTTER MOUNTING COMPRISING A FIRST ROTOR MEMBER, A SECOND ROTOR MEMBER AND A CUTTER-CARRIER MOUNTED ON SAID FIRST ROTOR MEMBER FOR ANGULAR MOVEMENT RELATIVELY THERETO, SAID FIRST ROTOR MEMBER BEING ITSELF MOUNTED TO MOVE ANGULARLY RELATIVELY TO SAID SECOND ROTOR MEMBER, AND SAID SECOND ROTOR MEMBER BEING MOUNTED FOR ROTATION ABOUT SAID VERTICAL DATUM LINE.
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |