Land vehicles – Wheeled – Extensible
Reexamination Certificate
2011-07-12
2011-07-12
Dickson, Paul N (Department: 3616)
Land vehicles
Wheeled
Extensible
C280S043170, C280S043230, C414S664000, C414S667000, C414S671000, C187S229000, C187S231000, C187S237000
Reexamination Certificate
active
07976032
ABSTRACT:
The pallet jack apparatus provides lateral fork adjustment between the two forks, each having a forwardly disposed pivoted wheel for added fork support. The lateral fork adjustment is controlled by the horizontal control lever on the stem. The lateral fork adjustment is via a motor with pinion gear which directly drives the first and second fork gears. The apparatus further provides height adjustment for the forks via the vertical control lever on the stem. The control levers are positioned within the handle interior of the oblong circular handle which guards against inadvertent control movements while providing superior leverage for positioning the apparatus.
REFERENCES:
patent: 2421472 (1947-06-01), Way
patent: 2564333 (1951-08-01), Kelly
patent: 2598566 (1952-05-01), Max Lehmann
patent: 2877868 (1959-03-01), Gunning et al.
patent: 3166207 (1965-01-01), Quayle
patent: 3612564 (1971-10-01), Harvey
patent: 3670912 (1972-06-01), Dunbar
patent: 3905632 (1975-09-01), Caylor et al.
patent: 4223901 (1980-09-01), Klemick
patent: 4589669 (1986-05-01), Kedem
patent: 4969794 (1990-11-01), Larsen
patent: 5709523 (1998-01-01), Ware
patent: 6808357 (2004-10-01), Lee
patent: 7114906 (2006-10-01), Baumgarner et al.
patent: 7237645 (2007-07-01), Lohmann et al.
patent: 7641011 (2010-01-01), Fridlington et al.
patent: 2004/0151567 (2004-08-01), Magni
patent: 2006/0181039 (2006-08-01), Fridlington et al.
patent: 2008/0232944 (2008-09-01), Kim
patent: 2009/0116945 (2009-05-01), White et al.
patent: 06001598 (1994-01-01), None
Dockins Diangelo S.
Dockins Stephanie
Crossley Mark A.
Crossley Patent Law
Dickson Paul N
English James
LandOfFree
Pallet jack apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pallet jack apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pallet jack apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2690138