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ELECTRIC POWER TOOL

  • US 3,652,879 A
  • Filed: 07/22/1970
  • Issued: 03/28/1972
  • Est. Priority Date: 07/22/1970
  • Status: Expired due to Term
First Claim
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1. An electric power tool comprising a housing having air intake and outlet openings and being split to form a cover half and a support half, and a motor having a fan for moving air through said housing, an armature, a brush assembly, and a stator having air passages formed on its inner periphery adjacent said armature, said halves having integral sockets formed therein for holding said brush assembly in position in said housing, said housing having integral wall portions extending generally radially inward adjacEnt said stator, said wall portions holding said stator in position in said housing and cooperating with said stator to block air flow around the outer periphery of said stator and thus channel substantially all the air through said air passages for cooling said armature.

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