Post driver

Details Post driver Post driver

2006-12-26

2006-12-26

Huynh, Louis K. (Department: 3721)

Tool driving or impacting

With vehicle support for drive

C173S090000, C173S091000, C173S100000, C173S185000

Reexamination Certificate

active

07152694

ABSTRACT:
A post driver is powered by a pair of hydraulic cylinders, one on either side of the hammer to provide a balanced lifting force to the hammer. A post retaining cap is formed to provide a recess for the post. The orientation of the driver may be controlled about a horizontal axis so the post may be driven vertically without regard to the contour of the ground. The post driver is further provided with an extensible beam and foot which is extended to engage the ground and further support the driver.

REFERENCES:
patent: 1996401 (1935-04-01), Bowen
patent: 2731892 (1956-01-01), Simmonds
patent: 3481649 (1969-12-01), Ericsson
patent: 3482639 (1969-12-01), Mixon
patent: 3744578 (1973-07-01), Lisenby
patent: 3961672 (1976-06-01), Welsch et al.
patent: 4050526 (1977-09-01), Deike
patent: 4124081 (1978-11-01), Deike
patent: 4249600 (1981-02-01), Bailey
patent: 4336840 (1982-06-01), Bailey
patent: 4565251 (1986-01-01), Cischke
patent: 4802538 (1989-02-01), Hays et al.
patent: 4993500 (1991-02-01), Greene et al.
patent: 5819857 (1998-10-01), Rohrer
patent: 6003619 (1999-12-01), Lange
patent: 6305480 (2001-10-01), Franklin
patent: 185669 (1967-01-01), None
patent: 1543012 (1990-02-01), None

Affiliated with

Also associated with

Rating

Post driver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Post driver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Post driver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3716016