AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING

Introduced: September 1968

Classification Context

Section:: MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:: HEATING; RANGES; VENTILATING
Subclass:: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING

Description

F24F covers systems and apparatus for controlling indoor air quality and environmental conditions through cooling, heating, moisture regulation, and air movement. This subclass encompasses air conditioning units, ventilation systems, air humidifiers and dehumidifiers, and devices that utilize air currents for dust or particle screening purposes. It includes both centralized climate control systems and localized air treatment equipment used in residential, commercial, and industrial applications. Related heating and combustion systems are classified separately under F24B and F24D.

Additional Content

Glossary

air-conditioning supply of air to or the treatment of air in rooms or spaces by means of cooling or a combination of cooling and a further kind of air treatment, e.g. humidification, heating or air purification. ventilation supply of air to rooms or spaces, extraction of air from rooms or spaces, or circulation of air within rooms or spaces.

Limiting references

Removing dirt or fumes from areas where they are produced Vertical ducts for carrying away waste gases from buildings Tops for ventilating shafts; Terminals for flues

Application references

Ventilating arrangements for forage silos Devices for ventilating greenhouses Ventilation in animal husbandry Controlling humidity in incubators for poultry Treatment rooms with artificial climate for medical purposes , Devices for reconditioning breathing air in sealed rooms Devices for ventilating gas-proof shelters Containers or portable cabins for affording breathing protection with devices for reconditioning the breathing air or for ventilating Dust-free rooms or enclosures for laboratories Ventilation, air-conditioning, or cooling, specially adapted for passenger or goods spaces of vehicles Air curtains at doors or windows of vehicles Ventilation of driving cabins or engine rooms of locomotives or motor railcars Heating, cooling, ventilating, or air-conditioning, specially adapted for rail vehicles Adaptations of ventilation, cooling, heating, or air-conditioning for submarines or other underwater vessels Arrangements of ventilation, heating, cooling, or air-conditioning specially adapted for ships or other waterborne vessels Arrangements or adaptations of air-treatment apparatus for crew, passenger or freight spaces in aircraft Arrangements or adaptations of devices for treatment of the atmosphere in cosmonautic vehicles Drying cabinets or drying chambers having heating or ventilating means Special arrangement or operation of ventilating devices in lavatories Drying building constructions in general or keeping them dry, e.g. by air vents Special adaptations of floors for incorporating ventilation ducts Ceilings having means for ventilation Ventilation of roof coverings Ventilation of tents Ventilation in doors or windows Ventilation of mines or tunnels Cooling or drying of air in mines or tunnels Arrangements for supplying or controlling air or other gases for drying solid materials or objects Cooling, ventilating or heating of electric apparatus

Related Keywords

AIR-CONDITIONING in generalair-conditioning or ventilation of BUILDING(S)air-conditioning including COOLINGair-conditioning including HEATINGcontrol of HUMIDITY in buildingsventilating SUBWAY(S)

14 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

F24F 1/00 Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
F24F 11/00 Control or safety arrangements
F24F 110/00 Control inputs relating to air properties
F24F 12/00 Use of energy recovery systems in air conditioning, ventilation or screening
F24F 120/00 Control inputs relating to users or occupants
F24F 13/00 Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
F24F 130/00 Control inputs relating to environmental factors not covered by group
F24F 140/00 Control inputs relating to system states
F24F 3/00 Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
F24F 5/00 Air-conditioning systems or apparatus not covered by group or
F24F 6/00 Air-humidification
F24F 7/00 Ventilation
F24F 8/00 Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
F24F 9/00 Use of air currents for screening, e.g. air curtains

Top Applicants

Top 10 applicants by patent filingsfor class F24, 2013–2023, worldwide · Source: EPO PATSTAT

MIDEA 21,834
GREE ELECTRIC APPLIANCES 21,535
GUANGDONG MIDEA REFRIGERATION EQUIPMENT COMPANY 20,870
QINGDAO HAIER AIR CONDITIONER COMPANY 15,443
HAIER SMART HOME 15,442
QINGDAO HAIER AIR CONDITIONER ELECTRIC COMPANY 10,008
AUX AIR CONDITIONING COMPANY 7,723
NINGBO AUX ELECTRIC COMPANY 7,499
NINGBO FOTILE KITCHENWARE COMPANY 6,712
LG ELECTRONICS KR 6,441