Patent US3304972A successfully refreshed from Google Patents.
US3304972A
Expired / Lapsed
US
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Method and apparatus for rip sawing of logs and timbers
Assignee: VYZKUMNY A VYVOJOVY USTAV DREVARDSKY
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Filing: 1965-08-04
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Granted: 1967-02-21
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Expires: 1985-08-04
Abstract
No abstract record available.
Inventors
- 👤 Kotesovec Vladimir
- 👤 Zizka Jan
- 👤 Janata Vlastimil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:48
CPC Classifications
B; B27; B27L; B27L11/00; B27L11/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A METHOD OF DIVIDING AN ELONGATED LOG AND LIKE HEAVY WOODEN MEMBERS INTO A PLURALITY OF BOARDS AND OTHER PLATE-SHAPED MEMBERS, WHICH COMPRISES: (A) SIMULTANEOUSLY REMOVING A PLURALITY OF LONGITUDINALLY ELONGATED CHIPS FROM SAID HEAVY MEMBER IN A PLURALITY OF PARALLEL LONGITUDINAL PLANES UNTIL RESPECTIVE KERFS EXTENDING IN SAID PLANES ARE FORMED, EACH KERF HAVING A LONGITUDINALLY ELONGATED BOTTOM AND A DEPTH IN THE RESPECTIVE LONGITUDINAL PLANE WHICH IS SUBSTANTIALLY SMALLER THAN THE THICKNESS OF SAID HEAVY MEMBER IN THE RESPECTIVE PLANE; AND (B) REMOVING A PLURALITY OF ADDITIONAL LONGITUDINALLY ELONGATED CHIPS FROM THE BOTTOM OF EACH KERF IN THE RESPECTIVE PLANE UNTIL RESPECTIVE REMAINING PORTIONS
Claim 2
Independent Claim
106 words
A METHOD OF DIVIDING AN ELONGATED LOG AND LIKE HEAVY WOODEN MEMBERS INTO A PLURALITY OF BOARDS AND OTHER PLATE-SHAPED MEMBERS, WHICH COMPRISES: (A) SIMULTANEOUSLY REMOVING A PLURALITY OF LONGITUDINALLY ELONGATED CHIPS FROM SAID HEAVY MEMBER IN A PLURALITY OF PARALLEL LONGITUDINAL PLANES UNTIL RESPECTIVE KERFS EXTENDING IN SAID PLANES ARE FORMED, EACH KERF HAVING A LONGITUDINALLY ELONGATED BOTTOM AND A DEPTH IN THE RESPECTIVE LONGITUDINAL PLANE WHICH IS SUBSTANTIALLY SMALLER THAN THE THICKNESS OF SAID HEAVY MEMBER IN THE RESPECTIVE PLANE; AND (B) REMOVING A PLURALITY OF ADDITIONAL LONGITUDINALLY ELONGATED CHIPS FROM THE BOTTOM OF EACH KERF IN THE RESPECTIVE PLANE UNTIL RESPECTIVE REMAINING PORTIONS
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |