Drilling or chiseling tool with suction apparatus
AssigneeHilti Aktiengesellschaft
InventorsJosef Obermeier, Ulrich Muller-Boysen, Siegfried Keusch, Peter Gaffal
Life of this patent
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Abstract
A drilling or chiseling tool includes a suction apparatus (8) releasably mounted on a housing (1) of the tool. The suction apparatus (8) contains a replaceable separating device (11) formed of a housing (13) subdivided into two separate chambers (K1, K2) by a filter element (14) replaceably fitted in the housing. Each chamber (K1, K2) has an aperture (12, 15) and the cross-sections of the apertures extend at right angles to one another.
Claims9
Manually operated drilling and chiseling tool comprises a suction apparatus (8) including a separating device (11) releasably mounted on the tool, wherein the improvement comprises that the separating device (11) comprises a filter element (14) and a housing (13) which is releasably connected with the suction apparatus (8), that the housing (13) is mounted in the suction apparatus (8), the filter element (14) is located within and divides the housing (13) into a first inlet chamber (K1) and a second outlet chamber (K2), said housing (13) includes a first aperture (12) having a first cross-section opening into said first chamber (K1) and a second aperture (15) having a second cross-section and opening from said second chamber (K2), and said filter element (14) having filtering face surfaces elongated in a first direction and said first direction extending substantially at right angles to the first cross-section of said first aperture (12).
Dependencies are inferred from the claim text.