Patent US3903609A successfully refreshed from Google Patents.
US3903609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjusting device for lumber planer
Assignee: Individual
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Filing: 1974-06-03
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Granted: 1975-09-09
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Expires: 1994-06-03
Abstract
Abstract An adjusting device for setting knives on wood heads. A housing with arcuate shaped legs rests on the planer drum and a movable electrical contact member mounted on the housing is set to a preselected distance from the surface of the planer drum corresponding to the desired height of the knives. A battery powered light is mounted on the housing and is electrically connected to the contact member and is energized when the blade is moved into contact with the contact member thereby visually indicating the proper height of the cutting blade.
Inventors
- 👤 Fred E Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:59
CPC Classifications
B; B23; B23Q; B23Q16/00; B23Q17/00; B23Q17/22; B23Q17/2216; B23Q17/2225
Claims Analysis
Total Claims: 0
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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) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |