Powered hammer with vibration dampener

Details Powered hammer with vibration dampener Powered hammer with vibration dampener

2007-06-27

2009-12-01

Nash, Brian D (Department: 3721)

Tool driving or impacting

Impacting devices

Hammer head driven by relatively moving motion transmitting...

C173S090000, C173S126000, C173S128000

Reexamination Certificate

active

07624815

ABSTRACT:
A powered hammer includes a housing, a tool holder coupled to the housing and configured to hold a tool, a motor within the housing, and a piston slideably mounted within the housing. A drive mechanism converts rotary output of the motor into a reciprocating motion of the piston. A ram is slideably mounted within the housing, forward of the piston, and is reciprocatingly driven by the piston. A beat piece is slideably mounted forward of the ram. The beat piece is repetitively struck by the reciprocating ram, which in turn repetitively strikes an end of the tool when held in the tool holder to transfer the momentum of the ram to the tool. A vibration dampener is coupled to the housing and is configured to remove metal splinters from lubricating fluid in the housing while counteracting vibration generated by movement of at least one of the piston, the ram, and the beat piece.

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Search Report—UK patent Office for related application GB0613318.5.
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