Elevator cab ventilation
AssigneeOtis Elevator Company
InventorsPatricia Derwinski, Cuauhtemoc Castro Inzunza
Life of this patent
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Abstract
An illustrative example embodiment of an elevator cab ventilation device includes a fan module and a ventilation controller that is configured to control operation of the fan module based on an indication of a position of at least one door of the elevator cab. The controller is configured to control the fan module to operate in a first mode to move a first amount of air per unit time when the door is in a first open position. The controller is configured to control the fan module to operate in a second mode to move a second, larger amount of air per unit time when the door is in a second, different open position.
Claims20
An elevator cab ventilation device, comprising:
- a fan module;
- and
- a ventilation controller that is configured to
- receive an indication of a position of at least one door of the elevator cab,
- control the fan module to operate in a first mode to move a first amount of air per unit time when the at least one door is in a first open position, and
- control the fan module to operate in a second mode to move a second, larger amount of air per unit time when the at least one door is in a second, different open position.
A method of ventilating an elevator cab including at least one door that selectively closes the elevator cab, the method comprising:
- receiving an indication of a position of at least one door of the elevator cab,
- controlling a fan module to operate in a first mode to move a first amount of air per unit time through the elevator cab when the at least one door is in a first open position, and
- controlling the fan module to operate in a second mode to move a second, larger amount of air per unit time through the elevator cab when the at least one door is in a second, different open position.
Dependencies are inferred from the claim text.