Grease applicator for a drill shaft

Details Grease applicator for a drill shaft Grease applicator for a drill shaft

1994-07-13

1996-05-21

Dang, Hoang C.

Boring or penetrating the earth

Processes

29458, 166243, 175424, 184 14, E21B 1916, F01M 100

Patent

active

055180760

ABSTRACT:
A grease applicator for the threaded joint section of a drill shaft of a blasthole drill. The grease applicator has a grease applicator head movable to an application position adjacent the threaded section of the drill shaft by an applicator drive. The drive extends the applicator head to and extracts the applicator head from the application position. When the applicator head is at the application position, a propelling device for moving grease through the applicator head into engagement with the threaded section is activated to apply the grease to the threaded section. To distribute the grease over the threaded section, the applicator head may have a shape partially surrounding the threaded section. The threaded joint section is vertically positioned in the path of movement of the grease applicator head and the applicator head is extended by the applicator drive along a path toward the threaded section. After grease is propelled through the applicator head into engagement with the threaded section, the grease applicator head is retracted away from the threaded section along the path by the applicator drive.

REFERENCES:
patent: 2246874 (1941-06-01), Burge et al.
patent: 2642034 (1953-06-01), Griffin et al.
patent: 2760585 (1956-08-01), Bergeron
patent: 3475781 (1969-11-01), Grant
patent: 4199858 (1980-04-01), Meijs
patent: 4895205 (1990-01-01), Thompson et al.

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