B - Operations – Transporting – 25 – D
Patent
B - Operations, Transporting
25
D
B25D 17/20 (2006.01) B25D 17/00 (2006.01) E21B 21/00 (2006.01)
Patent
CA 2509535
A power tool (1) having a striking means (5), by which a percussive tool (2) that can be driven at least partially along an axis (A) struck directly and having a flushing bore (4) extending at least partially longitudinally through a tool shank (3), and having a flushing head (6) having a radially inwardly open transverse bore hole (8) connected in a flow-through fashion with a fluid channel (7). The flushing head (6) has at least one hollow cylindrical sleeve-like guide surface (9), which is fitted for an insertion end (10) of the striking tool (2). The striking means (5) sealed by a seal (11a, 11b) is cup-like. The striking means (5) is moveably guided and made fluid tight by the seal (11a, 11b) to embrace the machine-side part of the insertion end (10) having the machine-side open flushing bore (4). 12
Artmann Konrad
Goetzfried Stefan
Hauptmann Udo
Hilti - Aktiengesellschaft
Miller Thomson Llp
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