Material or article handling – Vertically swinging load support – Grab
Reexamination Certificate
2007-01-09
2007-01-09
Underwood, Donald (Department: 3652)
Material or article handling
Vertically swinging load support
Grab
C294S082230, C294S106000
Reexamination Certificate
active
10934749
ABSTRACT:
A grapple assembly for attachment to a boom assembly of a front end loader is provided. The grapple assembly includes a first pinching arm having a first end constructed for grappling an article and a second end constructed for attachment to the boom assembly at a first attachment arm connection, the first pinching arm having a first pinching arm connection. The grapple assembly also includes a second pinching arm having a first end constructed for grappling an article and a second end constructed for attachment to the boom assembly at a second attachment arm connection, the second pinching arm having a second pinching arm connection. A rotation arm constructed for attachment to the boom assembly at an attachment cylinder connection is provided, the rotation arm having a first rotation arm connection and a second rotation arm connection. A first pinching arm linkage is attached to the rotation arm at the first rotation arm connection and is attached to the first pinching arm at the first pinching arm connection. A second pinching arm linkage is attached to the rotation arm at the second rotation arm connection and is attached to the second pinching arm at the second pinching arm connection. Rotation of the rotation arm relative to the boom assembly causes the first pinching arm and the second pinching arm to move between a closed position and an open position. A method for operating a grapple assembly is provided.
REFERENCES:
patent: 2326338 (1943-08-01), Drott et al.
patent: 2812595 (1957-11-01), Drott et al.
patent: 3077999 (1963-02-01), Svoboda
patent: 3243905 (1966-04-01), Ulrich
patent: 3344540 (1967-10-01), Ulrich
patent: 3455477 (1969-07-01), Blair
patent: 3512665 (1970-05-01), Westendorf
patent: 3817567 (1974-06-01), Lull
patent: 4030625 (1977-06-01), Koehnen
patent: 4085856 (1978-04-01), Westendorf
patent: RE29805 (1978-10-01), Koehnen
patent: 4266819 (1981-05-01), Pemberton
patent: 4423997 (1984-01-01), Pemberton
patent: 4538955 (1985-09-01), Langenfeld et al.
patent: 4565485 (1986-01-01), Wilman
patent: 4566844 (1986-01-01), Campin
patent: 4606692 (1986-08-01), Langenfeld et al.
patent: 4787811 (1988-11-01), Langenfeld et al.
patent: 4818005 (1989-04-01), Purser
patent: 4930974 (1990-06-01), Langenfeld et al.
patent: 5073080 (1991-12-01), Blum
patent: 5121557 (1992-06-01), Moore
patent: 5184934 (1993-02-01), Gallo
patent: 5516174 (1996-05-01), Squyres
patent: 5535533 (1996-07-01), Romanchok
patent: 5564885 (1996-10-01), Staben, Jr.
patent: 5779430 (1998-07-01), Ball
patent: 5788300 (1998-08-01), Dickison et al.
patent: 5957650 (1999-09-01), Rollo
patent: 5997237 (1999-12-01), Langenfeld et al.
patent: 6098320 (2000-08-01), Wass
patent: 6176531 (2001-01-01), Wheeler
patent: 6523284 (2003-02-01), Clugston
patent: 6582177 (2003-06-01), Westendorf et al.
patent: 6601891 (2003-08-01), Gregory, Jr.
Brochure, The Loader Specialist, WL Series.
SP-43 Bale Lift Operator's Manual.
MDS Manufacturing Co., Inc., Attachment Specialists.
Langenfeld Joseph W.
Westendorf Neal W.
Merchant & Gould P.C.
Underwood Donald
Westendorf Manufacturing Co., Inc.
LandOfFree
Grapple assembly, a front end loader having a grapple... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Grapple assembly, a front end loader having a grapple..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Grapple assembly, a front end loader having a grapple... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3797156