Hoist system with direct current power supply
AssigneeSafeWorks, LLC
InventorsVishnu Irigireddy, Helen Gong
Life of this patent
Estimating the term…
Abstract
A hoist system includes a motor with a drive shaft connected to a traction sheave, traction drum, or pinion. The hoist system further includes a compartment configured to at least partially enclose a direct current power supply such that the direct current power supply is electrically connected to the motor. The motor is configured to receive an input and convert the input to movement of the drive shaft as an output, and the motor is configured to be coupled to a load such that movement of the drive shaft moves the load.
Claims19
A method of changing an elevation of a load, the method comprising the steps of:
- electrically coupling a direct current power supply to a motor of a hoist system;
- coupling an output shaft of the motor to a rotatable member of the hoist system such that rotation of the output shaft rotates the rotatable member, wherein the rotatable member is one of a traction sheave, a traction drum, or a pinion of a rack and pinion system;
- coupling the rotatable member to the load such that:
- 1) rotation of rotatable member in a first direction increases the elevation of the load, and 2) rotation of the rotatable member in a second direction, which is opposite the first direction, decreases the elevation of the load;
- supplying power from the direct current power supply to the motor thereby:
- 1) rotating the output shaft;
- 2) rotating the rotatable member;
- and 3) changing the elevation of the load.
A hoist system configured to change an elevation of a load, the hoist system comprising:
- a direct current power supply;
- a motor including an output shaft, the motor electrically coupled to the direct current power supply;
- a rotatable member coupled to the output shaft such that rotation of the output shaft rotates the rotatable member, wherein the rotatable member is one of a traction sheave, a traction drum, or a pinion of a rack and pinion system;
- a platform configured to support the load during the change in elevation of the load, the platform coupled to the rotatable member such that:
- 1) rotation of rotatable member in a first direction increases the elevation of the platform, and 2) rotation of the rotatable member in a second direction, which is opposite the first direction, decreases the elevation of the platform.
Dependencies are inferred from the claim text.