US3381727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillating plywood lathe knife
Assignee: Potlatch Forests Inc
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Filing: 1966-03-10
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Granted: 1968-05-07
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Expires: 1986-03-10
Abstract
No abstract record available.
Inventors
- 👤 Leonard L Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:35
CPC Classifications
B; B27; B27L; B27L5/00; B27L5/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
246 words
AN OSCILLATING KNIFE APPARATUS MOUNTED ON A PLYWOOD VENEER LATHE FOR PEELING A ROTATING LOG MOUNTED LONGITUDINALLY BETWEEN OPPOSING LATHE SPINDLES, SAID APPARATUS COMPRISING: (A) AN ELONGATED HORIZONTAL KNIFE CARRIAGE MOUNTED ON THE LATHE FOR TRANSVERSE MOVEMENT TO AND FROM THE ROTATING LOG, SAID CARRIAGE HAVING A RIGHT TRIANGULARSHAPED VERTICAL CROSS SECTION THAT IS HOLLOW IN WHICH AN INCLINED UPPER SURFACE DEFINES THE HYPOTENUSE OF THE TRIANGLE, A HORIZONTAL PLATE DEFINES ONE LEG OF THE TRIANGLE, AND A VERTICAL FRONT SECTION DEFINES THE OTHER LEG OF THE TRIANGLE, SAID VERTICAL FRONT SECTION OF THE CARRIAGE HAVING VERTICALLY SPACED LONGITUDINAL DOVETAIL SLIDE WAYS FORMED THEREON AND TWO HORIZONTAL SLOTS THAT ARE FORMED THERETHROUGH BETWEEN THE SLIDE WAYS; (B) A VERTICAL KNIFE CARRIER MOVABLY MOUNTED ON SAID SLIDE WAYS FOR MOVEMENT PARALLEL TO THE LOG, SAID KNIFE CARRIER HAVING AN INCLINED TOP SURFACE THAT FORMS A FLAT SURFACE COPLANAR WITH THE UPPER SURFACE OF THE CARRIAGE TO FACILITATE THE DISCHARGE OF VENEER, AND A FRONT SURFACE DIRECTED TOWARD THE LOG, AND LUGS THAT EXTEND REARWARDLY FROM THE CARRIER THROUGH THE SLOTS OF THE CARRIAGE; (C) A LONGITUDINAL KNIFE FIXED TO THE KNIFE CARRIER FOR PEELING THE LOG, SAID KNIFE HAVING A CUTTING EDGE PROJECTING TANGENTIALLY RELATIVE TO THE LOG SURFACE ENGAGED THEREBY; AND (D) HYDRAULIC DRIVE MEANS MOUNTED WITHIN THE HOLLOW OF SAID CARRIAGE AND OPERATIVELY CONNECTED TO THE CARRIER LUGS FOR RECIPROCATING THE KNIFE CARRIER AND KNIFE RELATIVE TO SAID KNIFE CARRIAGE TO FACILITATE THE PEELING OPERATION.
Claim 2
Dependent Claim
246 words
AN OSCILLATING KNIFE APPARATUS MOUNTED ON A PLYWOOD VENEER LATHE FOR PEELING A ROTATING LOG MOUNTED LONGITUDINALLY BETWEEN OPPOSING LATHE SPINDLES, SAID APPARATUS COMPRISING: (A) AN ELONGATED HORIZONTAL KNIFE CARRIAGE MOUNTED ON THE LATHE FOR TRANSVERSE MOVEMENT TO AND FROM THE ROTATING LOG, SAID CARRIAGE HAVING A RIGHT TRIANGULARSHAPED VERTICAL CROSS SECTION THAT IS HOLLOW IN WHICH AN INCLINED UPPER SURFACE DEFINES THE HYPOTENUSE OF THE TRIANGLE, A HORIZONTAL PLATE DEFINES ONE LEG OF THE TRIANGLE, AND A VERTICAL FRONT SECTION DEFINES THE OTHER LEG OF THE TRIANGLE, SAID VERTICAL FRONT SECTION OF THE CARRIAGE HAVING VERTICALLY SPACED LONGITUDINAL DOVETAIL SLIDE WAYS FORMED THEREON AND TWO HORIZONTAL SLOTS THAT ARE FORMED THERETHROUGH BETWEEN THE SLIDE WAYS; (B) A VERTICAL KNIFE CARRIER MOVABLY MOUNTED ON SAID SLIDE WAYS FOR MOVEMENT PARALLEL TO THE LOG, SAID KNIFE CARRIER HAVING AN INCLINED TOP SURFACE THAT FORMS A FLAT SURFACE COPLANAR WITH THE UPPER SURFACE OF THE CARRIAGE TO FACILITATE THE DISCHARGE OF VENEER, AND A FRONT SURFACE DIRECTED TOWARD THE LOG, AND LUGS THAT EXTEND REARWARDLY FROM THE CARRIER THROUGH THE SLOTS OF THE CARRIAGE; (C) A LONGITUDINAL KNIFE FIXED TO THE KNIFE CARRIER FOR PEELING THE LOG, SAID KNIFE HAVING A CUTTING EDGE PROJECTING TANGENTIALLY RELATIVE TO THE LOG SURFACE ENGAGED THEREBY; AND (D) HYDRAULIC DRIVE MEANS MOUNTED WITHIN THE HOLLOW OF SAID CARRIAGE AND OPERATIVELY CONNECTED TO THE CARRIER LUGS FOR RECIPROCATING THE KNIFE CARRIER AND KNIFE RELATIVE TO SAID KNIFE CARRIAGE TO FACILITATE THE PEELING OPERATION.
References Cited (Backward Citations)
US384057A
Cited
US3224477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |