Material or article handling – Vertically swinging load support – Shovel or fork type
Reexamination Certificate
2011-08-09
2011-08-09
Underwood, Donald (Department: 3652)
Material or article handling
Vertically swinging load support
Shovel or fork type
C414S685000
Reexamination Certificate
active
07993091
ABSTRACT:
In a wheel loader3, an angle formed by a first line segment L1connecting a pivot position Y on a boom10of a bell crank11and a pivot position X on a connecting link13and a second line segment L2connecting the pivot position Y on the boom10of the bell crank11and a pivot position W on a tilt cylinder12is set in a range from 0 degree to 180 degrees on the attachment20, 30side, the attachment can be selected from a plurality of types such as a bucket20and a fork30for use, and each of the attachment20, 30that is different from each other has a different pivot position on the connecting link13relative to the pivot position on the boom10as a reference point.
REFERENCES:
patent: 2876921 (1959-03-01), Salna
patent: 2926799 (1960-03-01), Granryd
patent: 2959306 (1960-11-01), Kampert
patent: 3274710 (1966-09-01), Wright
patent: 3321215 (1967-05-01), Kampert
patent: 3411647 (1968-11-01), Zimmerman
patent: 4154349 (1979-05-01), Christensen
patent: 5201235 (1993-04-01), Sutton
patent: 5501570 (1996-03-01), Mozingo
patent: 6309171 (2001-10-01), Arck et al.
patent: 29 48 480 (1981-06-01), None
patent: 1 523 548 (1968-05-01), None
patent: 2 727 998 (1996-06-01), None
patent: 43-1693 (1943-01-01), None
patent: 63-22499 (1988-01-01), None
patent: 01-295922 (1989-11-01), None
patent: 06-010287 (1994-02-01), None
patent: 06-293498 (1994-10-01), None
patent: 2838251 (1998-12-01), None
patent: 11-343631 (1999-12-01), None
Japanese Office Action dated Aug. 5, 2008 and English translation thereof issued in counterpart Japanese Appln. No. 2005-512516.
“Construction Machinery Photo Collection”, Japan Industrial Publishing Co., Ltd., Feb. 15, 1970.
U.S. Appl. No. 11/814,903, filed Jul. 26, 2007, entitled: Work Machine, inventor: M. Osanai.
Supplementary European Search Report (SESR) dated Mar. 11, 2011 (in English) in counterpart European Application No. 04748066.0.
Nose Matsuo
Osanai Masashi
Holtz Holtz Goodman & Chick PC
Komatsu Ltd.
Underwood Donald
LandOfFree
Working machine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Working machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Working machine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2795352