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US3381727A Expired / Lapsed US ⏱️ 0.0 years remaining

Oscillating plywood lathe knife

Assignee: Potlatch Forests Inc
•
Filing: 1966-03-10
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Granted: 1968-05-07
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Expires: 1986-03-10
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Abstract

No abstract record available.

Inventors

  • 👤 Leonard L Hayes

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 18:45
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

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