Tool driving or impacting – Impacting devices
Reexamination Certificate
2005-05-10
2005-05-10
Gerrity, Stephen F. (Department: 3721)
Tool driving or impacting
Impacting devices
C173S025000, C173S042000, C173S112000, C173S135000, C173S190000, C173S194000, C173S200000, C175S202000, C175S296000
Reexamination Certificate
active
06889777
ABSTRACT:
A post driving implement for use with a vehicle, such as a tractor or a skid loader, is disclosed. The post driving implement is comprised of a hammer, a hammer channel, and a hammer cylinder. The hammer travels longitudinally within the hammer channel and is lifted by the hammer cylinder mounted to a closed end of the hammer channel. The hammer cylinder and its associated plumbing is of sufficient size to function as a hydraulic reservoir for the post driving implement, thus eliminating the need for a third hydraulic line to the reservoir on the vehicle and to avoiding need for alteration of the vehicle's reservoir. The post driving implement of the present invention may also include a back plate for mounting the implement to a vehicle. Additionally, the post driving implement may include adjustment mechanisms to vary the positional and angular relationship between the vehicle and the implement.
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Boley Neil
Carrico Archie
Gerrity Stephen F.
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Thumpers, Inc.
Weeks Gloria R.
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