Conveyors: power-driven – Conveyor section – Pusher conveyor and separate load support surface
Patent
1999-02-22
2000-10-24
Ellis, Christopher P.
Conveyors: power-driven
Conveyor section
Pusher conveyor and separate load support surface
198722, 198782, B65G 4300
Patent
active
061352691
ABSTRACT:
A drive roller unit is provided for use in a roller drive unit for the conveyance of objects on the freight deck of an aircraft. The drive roller unit comprises a drive motor to drive a drive roller which, when in an operating position, can be brought into frictional engagement with the bottom of an object to be conveyed. A lifting mechanism with a lifting motor is used to raise the drive roller from a retracted, resting position into the raised, operating position. A control apparatus controls operation of the drive motor and the lifting motor. A differential velocity measuring means is also provided for measuring a difference between a velocity of the drive roller and a velocity of said object being conveyed to determine a slippage. The control means comprises a regulating means to which an output signal from the differential velocity measuring means is sent and which regulates the control means and thereby the drive motor and/or the lifting motor in such a way as to reduce any slippage between the drive roller and the bottom surface of said object being conveyed.
REFERENCES:
patent: 2944297 (1960-07-01), Maynard
patent: 3447665 (1969-06-01), Egeland et al.
patent: 3712454 (1973-01-01), McKee
patent: 3873861 (1975-03-01), Halm
patent: 4015154 (1977-03-01), Tanaka et al.
patent: 4437027 (1984-03-01), Yamamoto et al.
patent: 4589542 (1986-05-01), Steadman
patent: 4720646 (1988-01-01), Torimoto
patent: 5020657 (1991-06-01), Huber
patent: 5183150 (1993-02-01), Chary et al.
patent: 5213201 (1993-05-01), Huber et al.
patent: 5437585 (1995-08-01), Sundseth
patent: 5547069 (1996-08-01), Pritchard
patent: 5568858 (1996-10-01), Thompson
patent: 5582286 (1996-12-01), Kalm et al.
patent: 5730274 (1998-03-01), Loomer
patent: 5938003 (1999-08-01), Huber et al.
Durrwaechter Martin
Huber Thomas
Kieser Benedikt
Urch Matthias
Ellis Christopher P.
Sharma Rashmi
Telair International GmbH
LandOfFree
Drive roller unit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Drive roller unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drive roller unit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1954732