Sabbath elevator
AssigneesHilel YAKOVSON, Arie YAKUEL
InventorsArie Yakuel, Hilel Yakovson, Dvir Brand
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Abstract
A drive system provides a displacement mechanism for driving motion of a device using energy stored in an energy accumulator in a non-electric form. A charge/discharge arrangement selectively charges the energy accumulator with energy derived from an energy source while isolated from the displacement mechanism, and the connects the energy accumulator to the displacement mechanism to provide energy for driving motion of the device. The energy accumulator may be hydraulic, pneumatic or gravitational. Examples of devices driven by the system include elevators, escalators and vehicles.
Claims18
A Sabbath elevator drive system for driving motion of an elevator compartment based on energy from an energy source, the drive system comprising:
- (a) a displacement mechanism mechanically associated with the elevator compartment for moving the elevator compartment between floors;
- (b) an energy accumulator configured to store a quantity of potential energy in a non-electric form;
- and
- (c) a charge/discharge arrangement associated with said energy accumulator, said displacement mechanism and the energy source, said charge/discharge arrangement being configured to selectively assume:
- (i) a first state in which said energy accumulator charges with energy derived from the energy source so as to store a quantity of energy while being isolated from said displacement mechanism, and
- (ii) a second state in which said energy accumulator is isolated from the energy source and connected to said displacement mechanism to provide energy for moving the elevator compartment between floors.
A drive system for driving motion of a device based on energy from an energy source, the drive system comprising:
- (a) a displacement mechanism mechanically associated with the device for driving motion of the device;
- (b) an energy accumulator configured to store a quantity of potential energy in a non-electric form;
- and
- (c) a charge/discharge arrangement associated with said energy accumulator, said displacement mechanism and the energy source, said charge/discharge arrangement being configured to selectively assume:
- (i) a first state in which said energy accumulator charges with energy derived from the energy source so as to store a quantity of energy while being isolated from said displacement mechanism, and
- (ii) a second state in which said energy accumulator is isolated from the energy source and connected to said displacement mechanism to provide energy for driving motion of the device.
Dependencies are inferred from the claim text.