Tool driving or impacting – Impacting devices – With means to reciprocate tool
Reexamination Certificate
2007-11-21
2010-06-15
Rada, Rinaldi I. (Department: 3721)
Tool driving or impacting
Impacting devices
With means to reciprocate tool
C173S217000, C173S205000, C173S216000, C173S048000
Reexamination Certificate
active
07735575
ABSTRACT:
A drill housing supports an output spindle comprising a material that is relatively soft. The non-rotating hammer member can be mounted around the output spindle, adjacent its forward end, and adjacent the relatively soft material of the drill housing. The non-rotating hammer member can include support slots located along its edge. Support rods that are made of a relatively hard material can extend through the support slots to support the non-rotating hammer member. A plurality of recesses can be provided in the relatively soft material of the drill housing to support the non-rotating hammer member. A hammer mode shift mechanism can be configured to move the non-rotating hammer member along the support rods between a first position corresponding to a non-hammer mode and a second position corresponding to a hammer mode. The relatively hard support rods support the non-rotating hammer member to thereby resist damage to the relatively soft material of the housing member.
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Black & Decker Inc.
Chukwurah Nathaniel
Markow Scott B.
Rada Rinaldi I.
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