Title: Pneumatic drill lubricator

Abstract: Oil is supplied to the compressed air supply hose for a jack leg drill by means of a conventional in-line oiler. A substantial part of the oil is separated from the drive air by means of a wall flow separator at the drill and conveyed through internal passages in the drill to various parts to be lubricated such as a chuck and a ratchet mechanism for rotating the chuck.

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Inventors: Ekwall, Carl G. B. (Saltsjobaden, SE)

Application Number: 06/080673
Filing Date: 1979-10-01
Publication_date: 1982-06-08
Assignee: ATLAS COPCO AB

Primary Class(es): 173/104 173/DIG.003, 92/154, 91/46
Other Classes: B25D17/26; B25D17/00; B25D17/26
US Patent Ref:

1081351	December, 1913	Waugh
1463990	August, 1923	Wilson	55D/IG1.7
2698604	January, 1955	Edwards	91/46	Lubricating system for pneumatic motors
3252270	May, 1966	Pall et al.	55D/IG1.7	Apparatus and method for removal of oil entrained in air
3534553	October, 1970	Norton et al.	91/46	METHOD OF OPERATING PNEUMATIC DEVICES
3837432	September, 1974	McKendrick	92/154	LUBRICATION SYSTEM FOR PNEUMATIC DEVICE
3921731	November, 1975	Ekwall et al.	173/DIG.3	Hydraulic impact device
3983788	October, 1976	Andersson et al.	91/46	Method to minimize the amount of oil in the air exhausted from a pneumatically operated impact motor

Other Refs: DEP4754FR2261844

July, 1951
September, 1978

Primary Examiner: Schroeder, Werner H.
Assistant Examiner: Falik, Andrew M.
Attorney: Frishauf, Holtz, Goodman & Woodward

Claims: