US3281934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spindle oscillator for tool changer apparatus
Assignee: Giddings and Lewis LLC
•
Filing: 1964-02-24
•
Granted: 1966-11-01
•
Expires: 1984-02-24
Abstract
No abstract record available.
Inventors
- 👤 Robert A Lehmkuhl
- 👤 Jack A Wohlfeil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:09
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/155; B23Q3/1552; B23Q3/15553; Y; Y10; Y10T; Y10T483/00; Y10T483/17; Y10T483/1733; Y10T483/1736; Y10T483/1743; Y10T483/1745
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN A MACHINE TOOL INCLUDING AN AXIALLY MOVABLE, ROTATABLE SPINDLE ADAPTED TO RECEIVE A CUTTING TOOL, SAID SPINDLE AND CUTTING TOOL HAVING A MULTIPLICITY OF CLOSELY SPACED MATING DRIVE ELEMENTS RESPECTIVELY, AND THE COMBINATION COMPRISING, POWER MEANS FOR MECHANICALLY CHANGING TOOLS IN SAID SPINDLE INCLUDING MEANS FOR HOLDING A TOOL IN ALIGNMENT WITH SAID SPINDLE FOR INSERTION THEREIN UPON RELATIVE AXIAL MOVEMENT THEREBETWEEN, MEANS FOR OSCILLATING SAID SPINDLE WITH PERIODS OF DELAY BETWEEN PERIODS OF MOTION AS AN INCIDENT TO SAID RELATIVE AXIAL MOVEMENT OF SAID SPINDLE AND SAID TOOL TO SECURE MATING ENGAGEMENT OF SAID DRIVE ELEMENTS, AND MEANS FOR CON-
Claim 2
Dependent Claim
102 words
IN A MACHINE TOOL INCLUDING AN AXIALLY MOVABLE, ROTATABLE SPINDLE ADAPTED TO RECEIVE A CUTTING TOOL, SAID SPINDLE AND CUTTING TOOL HAVING A MULTIPLICITY OF CLOSELY SPACED MATING DRIVE ELEMENTS RESPECTIVELY, AND THE COMBINATION COMPRISING, POWER MEANS FOR MECHANICALLY CHANGING TOOLS IN SAID SPINDLE INCLUDING MEANS FOR HOLDING A TOOL IN ALIGNMENT WITH SAID SPINDLE FOR INSERTION THEREIN UPON RELATIVE AXIAL MOVEMENT THEREBETWEEN, MEANS FOR OSCILLATING SAID SPINDLE WITH PERIODS OF DELAY BETWEEN PERIODS OF MOTION AS AN INCIDENT TO SAID RELATIVE AXIAL MOVEMENT OF SAID SPINDLE AND SAID TOOL TO SECURE MATING ENGAGEMENT OF SAID DRIVE ELEMENTS, AND MEANS FOR CON-
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |