Material or article handling – Vertically swinging load support – Shovel or fork type
Reexamination Certificate
2005-03-01
2005-03-01
Underwood, Donald W. (Department: 3652)
Material or article handling
Vertically swinging load support
Shovel or fork type
C037S468000
Reexamination Certificate
active
06860707
ABSTRACT:
A lift arm assembly has a pair of lift arms that are pivotally mounted onto the frame of a loader that has a forwardly pivoting cab. The forward ends of the lift arms each have a front frame assembly that is secured to the respective lift arm. The front frame assemblies includes separate box section frames with depending leg portions that have pivots at lower ends thereof for supporting attachments for the loader. The upper ends of the box section frames have sockets that receive the lift arms. The depending portions are offset inwardly from the lift arms, and tilt cylinders for controlling the pivoting of attachments are mounted on the depending portions to align with connections for loader attachments while providing clearance above the depending portions for forward pivoting of the cab. The depending portions are secured together with a torsion resisting cross member adjacent the lower ends to provide rigidity to the lift arm assembly.
REFERENCES:
patent: 2790568 (1957-04-01), Mandt
patent: D205485 (1966-08-01), Juhl et al.
patent: 3400767 (1968-09-01), Hermiz
patent: 4046026 (1977-09-01), Hammarstrand
patent: D247814 (1978-05-01), Johnson et al.
patent: 4143783 (1979-03-01), Cochran et al.
patent: 4355946 (1982-10-01), Wykhuis et al.
patent: 4401179 (1983-08-01), Anderson
patent: 4576543 (1986-03-01), Kuchyt et al.
patent: 4812103 (1989-03-01), Cochran et al.
patent: 4824319 (1989-04-01), Arnold
patent: 4850790 (1989-07-01), Johnson et al.
patent: D314389 (1991-02-01), Lynnes et al.
patent: 4999022 (1991-03-01), Veys
patent: D322792 (1991-12-01), Park
patent: 5111578 (1992-05-01), Ball et al.
patent: 5403144 (1995-04-01), Staben, Jr.
patent: D364408 (1995-11-01), Bryant et al.
patent: 5562397 (1996-10-01), Albright
patent: D376372 (1996-12-01), Little et al.
patent: 5590483 (1997-01-01), Kim
patent: 5807061 (1998-09-01), Donoghue et al.
patent: 5820332 (1998-10-01), Philips et al.
patent: D406594 (1999-03-01), Miller et al.
patent: D407415 (1999-03-01), Flatau et al.
patent: D407416 (1999-03-01), Miller et al.
patent: D407418 (1999-03-01), Miller et al.
patent: 5941330 (1999-08-01), Miller et al.
patent: D419568 (2000-01-01), Baig et al.
patent: D423521 (2000-04-01), Walter et al.
patent: D428425 (2000-07-01), Ratcliffe
patent: 6098739 (2000-08-01), Anderson et al.
Advertising Publication of Daewoo Heavy Industries & Machinery Ltd., published at least as early as Aug. 14, 2001.
Albright Larry E.
Roan Thomas J.
Clark Equipment Company
Underwood Donald W.
Westman Champlin & Kelly P.A.
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