Land vehicles: dumping – Hopper type – Bottom opening
Reexamination Certificate
2005-11-22
2005-11-22
Gutman, H. (Department: 3612)
Land vehicles: dumping
Hopper type
Bottom opening
C298S03500R
Reexamination Certificate
active
06966609
ABSTRACT:
An apparatus for operating first and second commodity trailer hopper trap doors is provided that includes a support frame extending between first and second ends, first and second driveshaft assemblies attached at each end of the support frame, a motor assembly attached to the support frame, and first and second linking mechanisms coupled between the motor assembly and the first and second driveshaft assemblies such that the motor assembly is operable to move the first and second linking mechanisms and thereby rotate the first and second driveshaft assemblies, thus operating the commodity trailer hopper trap doors. Various embodiments of the apparatus are provided.
REFERENCES:
patent: 568775 (1896-10-01), Lane
patent: 4009906 (1977-03-01), Sweet et al.
patent: 5829819 (1998-11-01), Searfoss
patent: 5887937 (1999-03-01), Searfoss
patent: 184510 (1986-06-01), None
Gutman H.
Stinson Morrison & Hecker LLP
LandOfFree
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