Material or article handling – Vertically swinging load support – Shovel or fork type
Reexamination Certificate
2007-09-04
2007-09-04
Underwood, Donald (Department: 3652)
Material or article handling
Vertically swinging load support
Shovel or fork type
C414S917000
Reexamination Certificate
active
11137521
ABSTRACT:
A boom assembly for a work machine including a boom extending from a forward portion of the work machine toward a rear portion of the work machine, a rear link member connected between a frame of the work machine and the boom by a first frame pivot connection and a first boom pivot connection, and a forward link member connected between the frame of the work machine and the boom by a second frame pivot connection and a second boom pivot connection. The boom assembly also includes an actuator connected between the frame of the work machine and the boom by a third frame pivot connection and a third boom pivot connection. The second frame pivot connection is located vertically below the first frame pivot connection and above the second boom pivot connection when the boom assembly is in a lowered position.
REFERENCES:
patent: 4355946 (1982-10-01), Wykhuis et al.
patent: 5042602 (1991-08-01), Nakatani et al.
patent: 5078568 (1992-01-01), Lynnes
patent: 5169278 (1992-12-01), Hoechst et al.
patent: 5184932 (1993-02-01), Misuda et al.
patent: 5470190 (1995-11-01), Bamford et al.
patent: 5470192 (1995-11-01), Parri et al.
patent: 5511932 (1996-04-01), Todd et al.
patent: 5542814 (1996-08-01), Ashcroft et al.
patent: 5609464 (1997-03-01), Moffitt et al.
patent: 5807061 (1998-09-01), Donoghue et al.
patent: 5820332 (1998-10-01), Philips et al.
patent: 5964567 (1999-10-01), Bamford
patent: 6132163 (2000-10-01), Andrews et al.
patent: 6171050 (2001-01-01), Johnson
patent: 6238130 (2001-05-01), Youngers
patent: 6325589 (2001-12-01), Jang et al.
patent: 6474933 (2002-11-01), Hoechst et al.
patent: 6575262 (2003-06-01), Nagatsuka
patent: 6616398 (2003-09-01), Dershem et al.
patent: 6679674 (2004-01-01), Branham
patent: 6695568 (2004-02-01), Bares et al.
patent: 2004/0028514 (2004-02-01), Mimuro
Layko Michael C.
Parker Jeffrey M.
Caterpillar S.A.R.L.
Finnegan Henderson Farabow Garrett & Dunner
Underwood Donald
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