Material or article handling – Vertically swinging load support – Grab
Reexamination Certificate
2011-06-28
2011-06-28
Underwood, Donald (Department: 3652)
Material or article handling
Vertically swinging load support
Grab
C294S104000, C029S700000
Reexamination Certificate
active
07967548
ABSTRACT:
A material handling system for engaging and transporting material. The material handling system includes a mouth and a hydraulic actuator for pivoting a tooth within the mouth. Once a material has been positioned within the mouth, the hydraulic piston actuates the tooth to secure the material within the mouth. The tooth is preferably configured and oriented to move into tighter engagement with the material as gravity or other forces attempt to remove the material from the mouth. The hydraulic piston allows an operator to release the tooth whenever desired. The material handling system includes a vehicle mounted boom coupled to the mouth so that material engaged by the mouth may be transported to another desired location.
REFERENCES:
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patent: 4162804 (1979-07-01), Davies
patent: 4187711 (1980-02-01), Lavochkin et al.
patent: 4969780 (1990-11-01), Hermsted
patent: 6086126 (2000-07-01), Krauss
patent: 7329082 (2008-02-01), Warren
A-Line EDS, Inc.
Trout Brett
Underwood Donald
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