Tool driving or impacting – Passage in manipulating handle for drive motor motive fluid – Motive fluid control valve in handle passage
Reexamination Certificate
2005-10-25
2005-10-25
Gerrity, Stephen F. (Department: 3721)
Tool driving or impacting
Passage in manipulating handle for drive motor motive fluid
Motive fluid control valve in handle passage
C173S048000, C173S217000
Reexamination Certificate
active
06957706
ABSTRACT:
An attachment member (4) for connecting a hand grip with a housing part and a gearbox of an electric hand tool is formed of a flat base plate (11) for partitioning the housing part and the gearbox relative to the hand grip and formed with a first side (12) and a second side (13). Two passages (6.1, 6.2) form channels for guiding a fastener and extend perpendicularly to the second side (13) of the base plate (11). The attachment member (4) further comprises two air conveying elements (15.1, 15.2), which are arranged at an angle to the second side (13) and each has a curved deflecting section (22.1, 22.2), which projects from the second side on a radius (R) over an angular range (α). In addition, the attachment member (4) has a support for a detent spring (24) for a control knob for adjusting a gearing arranged in the gearbox.
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patent: 2003/0066667 (2003-04-01), Zhang
patent: 10201895 (2002-08-01), None
Burger Helmut
Doberenz Mathias
Naumann Thomas
Abelman ,Frayne & Schwab
Gerrity Stephen F.
Hilti Aktiengesellschaft
Nathaniel Chukwarah
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