Patent ID: 9469006
Filing Date: 2016-10-18
CPC Classification: B23B,B23Q,Y10T

Claim Text:
1. A pneumatic positive feed drill comprising: a housing; an air motor at least partially within the housing; a valve in fluid communication with the air motor, the valve comprising an air inlet; a cutter spindle with a first end adapted to couple to a cutter, the cutter spindle configured to move forward a predetermined distance from an initial position when the positive feed drill is activated and then return to the initial position; an emitter configured to deliver lubricant to the first end of the cutter spindle when the cutter spindle moves forward from the initial position and to cease delivery of lubricant to the first end of the cutter spindle when the cutter spindle has moved the predetermined distance; and a retract valve configured to shut off fluid communication between the emitter and a source of pressurized air when the cutter spindle has moved the predetermined distance.