Handling: hand and hoist-line implements – Hand forks and shovels – Grappling type
Reexamination Certificate
2009-06-15
2011-11-22
Kramer, Dean (Department: 3652)
Handling: hand and hoist-line implements
Hand forks and shovels
Grappling type
C294S057000, C294S118000
Reexamination Certificate
active
08061744
ABSTRACT:
A post hole digger includes a pair of blades that face one another, a pair of shaft handles attached to the blades, and a pivot member that pivotally couples the shaft handles together. A pair of gripping handles are attached to, and are generally perpendicular to, the shaft handles, which provides a second gripping location for the user and enhances the ability to thrust and rotate the tool in the ground. The blades are off-set by at least ¼ inch from each other in order to improve a user's ability to rotate the post hole digger and remove soil from the hole. The blades include an angled distal edge, which has a leading edge portion, an intermediate edge portion and a trailing edge portion. The leading edge extends downwardly further than the intermediate portion, which in turn extends downwardly further than the trailing edge portion.
REFERENCES:
patent: 71133 (1867-11-01), Carmichael
patent: 127713 (1872-06-01), Shirley
patent: 183976 (1876-10-01), Ryan
patent: 342516 (1886-05-01), Iwan
patent: 603858 (1898-05-01), Rakov
patent: 934029 (1909-09-01), West
patent: 1647832 (1927-11-01), Kovar
patent: 1761503 (1930-06-01), Tonhardt
patent: 1970087 (1934-08-01), Gonsalves
patent: 2021982 (1935-11-01), Byrne
patent: 5338078 (1994-08-01), Basek
Kramer Dean
Ream Dale J.
LandOfFree
Post hole digger 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 hole digger, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Post hole digger will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4291969