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US 6,202,765 B1Granted
Device having a filter, a filter vibrating means and a scraper used for sucking off drillings
AssigneeTamrock Voest-Alpine Bergtechnik Gesellschaft m.b.H.
InventorsKurt Schaffer, Erich Brandl, Karl Schnedl
Life of this patent
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Abstract
A device for sucking off drillings during the drilling of boreholes, comprising a suction fan (9) and a filter (10) as well as an opening closeable by a lid for emptying the drillings reception space (8) preceding the filter (10), in which, for the simple cleaning of the filter (10), the lid (12) is connected with a vibrating mechanism for the filter (10).
Claims25
A device for sucking off drillings into a reception space of a housing during the drilling of boreholes, said device comprising:
- a fan and a filter mounted within said housing, said fan being operative to move air from the reception space through the filter for discharge from the housing;
- a lid movable between closed and open positions relative to an opening in the reception space, said lid permitting emptying of drillings from the reception space through said opening when the lid is in the open position;
- a rod connected to said lid so as to be displaced when said lid is moved between closed and open positions;
- and
- means engaging said rod and joined to the filter to impart vibrational movement to the filter in response to relative movement between the rod and the rod-engaging means when said rod is displaced, one of the rod and the rod-engaging means including a ratchet located where the rod-engaging means engages the rod.
2 more elements
Dependencies are inferred from the claim text.