Manual slide post driver and extractor for...

Details Manual slide post driver and extractor for... Manual slide post driver and extractor for...

2006-09-26

2006-09-26

Sipos, John (Department: 3721)

Tool driving or impacting

Impacting devices

C173S091000, C173S128000, C173S132000

Reexamination Certificate

active

07111690

ABSTRACT:
A post driving device is disclosed. The post driving device slides to a desired position and is essentially locked in place through frictional force. As the post is driven into the ground, the device can be adjusted to a new position along the length of the post.

REFERENCES:
patent: 1764223 (1930-06-01), Osten
patent: 2629985 (1953-03-01), McDowell
patent: 2690055 (1954-09-01), Lundgren et al.
patent: 3050095 (1962-08-01), Prather
patent: 3499497 (1970-03-01), Moore
patent: 5010710 (1991-04-01), Gray et al.
patent: 5042591 (1991-08-01), Hull
patent: 5085281 (1992-02-01), Selly

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