Diesel hammer systems and methods

Details Diesel hammer systems and methods Diesel hammer systems and methods

2006-01-24

2006-01-24

Smith, Scott A. (Department: 3721)

Tool driving or impacting

Impacting devices

Hammer head constitutes piston of drive motor

C173S137000, C173S206000

Reexamination Certificate

active

06988564

ABSTRACT:
A diesel hammer system for driving a pile, comprising a housing, an anvil member supported by the housing, a clamp assembly adapted to connect the anvil member to the pile, and a ram member disposed within the housing. A fuel pump system injects fuel into a combustion chamber defined by the housing, anvil member, and the ram member. A coupling system detachably engages the ram member to raise the ram member from an impact position to an upper position, the coupling system comprising a trigger member that, when engaged, causes the coupling system to release the ram member. A trigger projection mounted is on the housing to engage the trigger member to cause the coupling system to release the ram member at the upper position. The diesel hammer further comprises a pre-trigger system comprising a pre-trigger member movable between an extended position and a retracted position.

REFERENCES:
patent: 3679005 (1972-07-01), Inaba et al.
patent: 3822969 (1974-07-01), Kummel
patent: 3967688 (1976-07-01), Inenaga et al.
patent: 4109475 (1978-08-01), Schnell
patent: 6102133 (2000-08-01), Scheid et al.
patent: 6736218 (2004-05-01), White
ICE; “Diesel Pile Hammers” brochure; publication date unknown, USA.
Portions of Operations Manual for Diesel Hammers Depicting the Basic Operation of Diesel Hammers and Fuel Pumps Used by Commercially Available Diesel Hammers (8 pages).

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