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US 5,330,423 AGranted
Drive system
OwnerDonald J. Holsterinventor
Life of this patent
Estimating the term…
Abstract
A drive system for a conveyor belt drive assembly including a motor rotatably connected to the input shaft of a fluid coupling with the output shaft of the fluid coupling being rotatably connectable to the drive assembly. A motor speed controller controls the speed of the motor, so as to cause the drive shaft to maintain a desired torque.
Claims10
A conveyor belt drive system adapted to move a conveyer belt, said system comprising:
- (a) a drive shaft adapted for rotatable connection to a drive assembly of said conveyor belt;
- (b) drive means for rotatably urging said drive shaft, said drive means including, in series.
- (i) a motor rotatably connected to a fluid coupling of the type whose output torque varies as a function of input shaft speed,
- (ii) said fluid coupling rotatably connected to the drive shaft, and
- (c) motor speed control means for controlling the output speed of the motor, whereby the output torque of said fluid coupling transmitted to said drive shaft responds in accordance with said output speed of said motor so as to cause the drive shaft to maintain a desired torque.
2 more elements
A method for control of the output torque of a fluid coupling;
- said fluid coupling being of the type whose output torque varies as a function of input shaft speed;
- said method comprising sensing said output torque and controlling said input shaft speed so as to maintain said output torque within a predetermined band.
A drive system, comprising:
- (a) a drive shaft adapted for rotatable connection to a drive assembly:
- (b) drive means for rotatably urging said drive shaft, said drive means including, in series,
- (i) a motor rotatably connected to a fluid coupling of the type whose output torque varies as a function of input shaft speed,
- (ii) said fluid coupling rotatably connected to the drive shaft, and
- (c) motor speed control means for controlling the output speed of the motor, whereby the output torque of said fluid coupling transmitted to the drive shaft responds in accordance with said output speed so as to cause the drive shaft to maintain a desired torque.
2 more elements
Dependencies are inferred from the claim text.