Cutting by use of rotating axially moving tool – With means to apply transient – fluent medium to work or product – Including tool with duct
Patent
1977-01-10
1978-07-18
Hinson, Harrison L.
Cutting by use of rotating axially moving tool
With means to apply transient, fluent medium to work or product
Including tool with duct
408204, B23B 2710, B23B 4102
Patent
active
041012380
ABSTRACT:
A hole saw for use in a hand drill has a cup centered on a rotation axis and having a rim centered on this axis and provided with a plurality of teeth. This cup has a shaft extending backwardly along the axis and adapted to be received in a drill chuck so that when the shaft and cup are rotated about the axis the teeth can sink into a workpiece and cut a large-diameter hole therein. The cup is formed at its base with a bore lying on the axis and opening into the cup and with a passage extending non-axially from the bore to the outer surface of the shaft. A pilot bit has a shank non-rotatably received in this bore and a tip extending axially beyond the rim of the cup so that this pilot bit serves to center the drill accessory during the start of a hole-making operation. A collar is fitted to the outside of the drill shank over the passage and is connected to aspirating means so as to aspirate particles from inside the cup. Such aspiration can be aided after the start of a drilling operation by removing the drill shank from the bore, or by forming grooves in the shank or the bore for conduction of particles backwardly to the passage.
REFERENCES:
patent: RE28416 (1975-05-01), Hougen
patent: 2748817 (1956-06-01), Stearns
patent: 2906256 (1959-09-01), Glynn
patent: 3033298 (1962-05-01), Johnson
patent: 3555937 (1971-01-01), Nicodemas
patent: 3559513 (1971-02-01), Hougen
patent: 3597103 (1971-08-01), Birk
patent: 3854840 (1974-12-01), Miyanaga
Reibetanz Wilbert
Voss Klaus
Wanner Karl
Hinson Harrison L.
Robert & Bosch GmbH
Striker Michael J.
LandOfFree
Hole saw with particle-aspirating accessory for hand drill does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hole saw with particle-aspirating accessory for hand drill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hole saw with particle-aspirating accessory for hand drill will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-336378