Machining process
Abstract
Abstract A plurality of substantially planar members and a plurality of generally planar spacers are laminated to each other in an alternating relationship by a thermoplastic bonding agent. A rotatable milling cutter with a plurality of axially spaced and axially extending cutting degrees along the rotational axis is positioned with this axis normal to the planar members. The cutting edges are out of square relative to a plane normal to the rotational axis and are respectively aligned with the planar members. The milling cutter is rotated and moved relative to the planer members to respectively engage the cutting edges with the planar members and simultaneously machine the edges of the planar members out of square. The laminated spacers and machined planar members are heated to allow separation of the planar members from the spacers and from each other.
Inventors
- 👤 R Berg
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |