Angle drive lubricator
AssigneeCooper Industries, Inc.
InventorPhilip A. Snider
Life of this patent
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Abstract
A lubricator for an angle drive attachment for pneumatic rotary tools is disclosed. An output shaft of the angle drive attachment is surrounded by a stationary lubricating sleeve. The lubricator can include an upper portion and a lower portion formed of different absorbent materials. The upper portion can be formed of a highly absorbent material such as felt so as to act as a reservoir and reabsorb lubricant which has been thrown off of the gears while the tool is in operation. The lower portion of the lubricator can be formed of a less absorbent porous material such as open cell styrofoam to slowly meter the lubricant onto the gears through capillary action. Alternatively, the angle drive lubricator can be formed of a single piece of absorbent material.
Claims10
In a tool having a motor housing with a rotatable drive shaft at one end terminating in a bevel pinion, an angle drive attachment comprising:
- an angular housing having a first leg and a second leg;
- an output shaft journalled in said second leg of said angular housing;
- a bevel gear secured to said output shaft and disposed for engagement and rotation with the bevel pinion;
- an annular absorbent sleeve disposed within said housing and adjacent said bevel gear;
- and
- means for maintaining said absorbent sleeve stationary within said housing.
In a tool having a motor housing with a rotatable drive shaft at one end terminating in a bevel pinion, an angle drive attachment comprising:
- an angular housing having a first leg and a second leg;
- an output shaft journalled in said second leg of said angular housing;
- a bevel gear secured to said output shaft and disposed for engagement and rotation with the bevel pinion;
- an annular absorbent sleeve disposed within said housing and adjacent said bevel gear, said absorbent sleeve having a first region disposed away from said bevel gear and a second region disposed adjacent said bevel gear, said first and second regions having distinct lubricant absorption and release characteristics;
- and
- means for maintaining said absorbent sleeve stationary within said housing.
Dependencies are inferred from the claim text.