Electric tree pruning saw

• US 3,340,612 A
• Filed: 01/14/1966
• Issued: 09/12/1967
• Est. Priority Date: 01/14/1966
• Status: Expired due to Term

• Current Assignee: Benchmark Tool Company
• Original Assignee: Erwin C. Knight
• Inventors: Knight, Erwin C.
• Application Number:
  US04/520,759
• Time in Patent Office: 606 Days
• US Class Current: 30/394
• CPC Class Codes: A01G 3/08 Other tools for pruning, branching or delimbing standing trees

Claims

1. IN AN ELECTRIC PRUNING SAW, THE COMBINATION OF A HOLLOW HOUSING HAVING A HANDLE PORTION INTEGRAL THEREWITH, AN ELONGATED TUBULAR POLE AFFIXED AT ONE END TO SAID HOUSING, A GUIDE AFFIXED AT ONE END THEREOF TO THE OTHER END OF SAID POLE AND HAVING A NONCIRCULAR OPENING AXIAL OF SAID POLE AND A TREE LIMB SUPPORT PORTION WITH A CROSS HEAD GENERALLY TRANSVERSE TO THE AXIS OF SAID POLE AND A CONNECTING PORTION EXTENDING FROM SAID CROSS HEAD TO SAID ONE END OF SAID GUIDE, A BLADE SUPPORT MEMBER HAVING A NONCIRCULAR CROSS SECTION COMPLEMENTARY TO SAID OPENING AND BEING RECIPROCABLE LONGITUDINALLY WITHIN SAID OPENING, A PRUNING SAW BLADE, MEANS FOR SECURING SAID BLADE TO SAID BLADE SUPPORT MEMBER, SAID LIMB SUPPORT PORTION HAVING LONGITUDINAL AND TRANSVERSE BLADE GUIDING SLOTS THEREIN SLIDABLY RECEIVING SAID BLADE PROVIDING CONTINUOUS LATERAL SUPPORT TO SAID BLADE FROM SAID BLADE SUPPORT MEMBER TO SAID CROSS HEAD TO PREVENT BUCKLING THEREOF DURING CUTTING, AN ELECTRIC MOTOR WITHIN SAID HOUSING HAVING AN OUTPUT SHAFT, AN ELONGATED OPERATING ROD EXTENDING AXIALLY WITHIN SAID TUBULAR POLE AND BEING AFFIXED AT ONE END TO SAID BLADE SUPPORT MEMBER, POWER TRANSMITTING MEANS WITHIN SAID HOUSING HAVING THE INPUT OPERATIVELY CONNECTED TO SAID ROD AND MEANS FOR CONVERTING ROTATION OF SAID POWER TRANSMITTING MEANS INTO RECIPROCATION OF SAID SAW BLADE.