Tool driving or impacting – Work cleansing – Cleansing fluid pump operated by drive
Patent
1974-09-03
1980-06-24
Pate, III, William F.
Tool driving or impacting
Work cleansing
Cleansing fluid pump operated by drive
175209, 175217, 408 58, 408 67, 408241B, B25D 1714
Patent
active
042090695
ABSTRACT:
A drill is disclosed having a shroud structure extending about a chuck and drill bit at the forward end of the tool, to receive cuttings produced by the bit, and having a receptacle preferably carried at the rear end of the drill and to which the cuttings are withdrawn by a flow of air. In one form of the invention, the air movement is induced by aspirator action, while in another form a rotary air pump driven by the motor of the drill creates the suction effect. The receptacle may take the form of a cup detachably connectible to the body of the drill, and in the aspirator form of the invention the aspirating passages may be formed in an end wall of this cup. The shroud structure may include a sleeve disposed about the drill bit, and having a lug projecting inwardly to a position to contact and break up cuttings formed by the bit before they are withdrawn to the accumulation receptacle.
REFERENCES:
patent: 2339324 (1944-01-01), Fischer
patent: 2420905 (1947-05-01), Olsen
patent: 2527968 (1950-10-01), Sherman et al.
patent: 3368633 (1968-02-01), Moates
patent: 3511322 (1970-05-01), Bixby et al.
patent: 3548436 (1970-12-01), Henrich
patent: 3613807 (1971-10-01), Galis
patent: 3843198 (1974-10-01), Reynolds
patent: 3850254 (1974-11-01), Hirdes
Lockheed Corporation
Pate III William F.
Turner Lowell G.
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