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| Number | Title | Issue Date |
| 4285466 | Apparatus for mixing high and low pressure air from a jet engine An apparatus for mixing high and low pressure air from a jet engine and introducing the air to an air duct of the air conditioning system of an aircraft. The apparatus provides a plurality of high pressure nozzles inside an air-mixing chamber. By controll... | 08/25/1981 |
| 4281592 | Double induction unit An air induction unit having a first induction means to induce secondary air through a first induction opening into a stream of primary air to produce an air stream of mixed primary and secondary air, and a second induction means to induce additional seco... | 08/04/1981 |
| 4273564 | Air cleaner of internal combustion engines An air cleaner of an internal combustion engine including an air inlet conduit connected to a main body containing a filter element and composed of upper and lower longitudinally extending conduit portions formed of a synthetic resin and connected togethe... | 06/16/1981 |
| 4265395 | Temperature control apparatus for an automobile air conditioner Disclosed is a temperature control apparatus for an air conditioner of an automobile. This temperature control apparatus comprises a push button switch for elevating the set temperature and a push button switch for lowering the set temperature. Every time... | 05/05/1981 |
| 4259987 | Linear damper system The damper system for controlling the flow of a gaseous fluid in a duct member is disclosed in which the combination of parallel and opposed flow characteristics is utilized to produce a composite rate of flow which varies substantially linearly with the ... | 04/07/1981 |
| 4249500 | Flapper linkage in air intake control system of internal combustion engine A linkage connection for connecting a wax thermostat and membrane actuator drive assembly to a flapper-type flow proportioning valve in the air intake system of a carburetor-equipped internal combustion engine, the connection comprising a connecting cylin... | 02/10/1981 |
| 4245780 | Temperature regulator assembly and signal modulator therefor A regulator assembly for an automatic temperature control system for the passenger compartment of an automotive vehicle. Regulation is by vacuum signal modulated by a sensor responsive to the difference between a selected temperature and the temperature o... | 01/20/1981 |
| 4244343 | Thermostatic valve for compensating air fuel mixture for air temperature change A thermostatic valve for compensating for the change in the intake air temperature of an internal combustion engine. The thermostatic valve has a temperature detector attached to a housing provided with a port in communication with atmosphere, a pipe in c... | 01/13/1981 |
| 4231343 | Device for controlling the intake air temperature of a carburetor-equipped internal combustion engine A device for adjusting the intake air temperature of a carburetor-equipped internal combustion engine whose air intake system has a flapper valve in a duct junction admitting cold raw air and/or preheated raw air to the intake filter, depending on the raw... | 11/04/1980 |
| 4210278 | Apparatus for supplying conditioned air at a substantially constant temperature and humidity An apparatus for supplying conditioned air at a substantially constant temperature and humidity. The apparatus includes a supply duct coupled to a source of supply air for carrying the supply air therethrough. A return duct is coupled to the supply duct f... | 07/01/1980 |
| 4206732 | Air cleaner temperature sensor An air cleaner temperature sensor for use in sensing the temperature of the air in an air cleaner and modulating the temperature of the air entering the air cleaner in response to the temperature in the air cleaner comprising a plastic body having an inle... | 06/10/1980 |
| 4203485 | Multizone air terminal The invention provides an air terminal capable of serving multiple zones with either variable volume, constant temperature air or variable temperature, constant volume air, or both, without any reheating of cold air. The terminal consists of a cold air pl... | 05/20/1980 |
| 4199101 | Multiple load integrated fluid control units A mixed air conditioning controller is formed as a factory assembled and adjusted unit in a compact housing, with simple and direct input/output field connectors. Various temperature and humidity input devices are field connected to produce a sequenced co... | 04/22/1980 |
| 4195774 | Dual in-line valve construction Two fluid streams of different temperatures flow through two concentric pipes, the flow of each stream being modulated to achieve a desired mixture temperature. An in-line slide valve is interposed in one fluid flow path, and an in-line poppet valve is in... | 04/01/1980 |
| 4189092 | Damper control for preventing spread of fire and smoke through an induction mixing box Upon sensing an excessive temperature in a plenum supplying secondary air to a mixing box, a thermostatic element opens a valve to exhaust air from a pneumatic actuator for opening a normally closed secondary air damper. This action permits the damper to ... | 02/19/1980 |
| 4186564 | Air ventilation system An economizer system for air conditioning uses a space thermostat to determine a demand for cooling and an outside air controller to determine whether cooling shall be mechanical or natural. A mixed air controller senses the temperature of the mixture of ... | 02/05/1980 |
| 4184634 | Closed loop control for automatic temperature control system A closed loop control circuit for regulating the response of an automatic temperature control system is disclosed. The temperature control system provides automatic regulation of the temperature for the passenger compartment of a vehicle by positioning a ... | 01/22/1980 |
| 4178840 | Air discharge terminal unit An air discharge terminal unit comprises a plenum housing having a main air inlet, a main air outlet and an induced air inlet, the induced air inlet being located unilaterally along the flow path of the air between the main air inlet and the main air outl... | 12/18/1979 |
| 4148435 | Induction air mixing box control A control for an induction air mixing box for mixing conditioned primary air and induced secondary air for delivery at a substantially constant volume rate of flow into a condition controlled space, the volume rate of flow of primary air being maintained ... | 04/10/1979 |
| 4144857 | Device for automatically controlling the intake air temperature of a carburetor-equipped internal combustion engine A device for adjusting the intake air temperature of carburetor-equipped internal combustion engines having an air intake system with a flapper valve in a duct junction admitting cold raw air and/or preheated raw air to the intake filter, depending on the... | 03/20/1979 |
| 4134542 | Thermopneumatic actuator An output member of the present actuator is connected to control a temperature door in an air conditioning duct leading into an automobile passenger compartment and thereby the temperature in the compartment. The output member is connected to and moved by... | 01/16/1979 |
| 4106552 | Method of air-conditioning employing variable terminal box A heating and air conditioning system and a special variable volume terminal box associated therewith, the system utilizing energy dissipated by the lighting and other building facilities in a controlled manner through the functioning of the variable volu... | 08/15/1978 |
| 4102494 | Air distribution system An air conditioning system for conditioning the air in a plurality of enclosed areas in a building. Conditioned air at a temperature level which may be varied is supplied to a first terminal for discharge into an area. Conditioned air at a relatively cons... | 07/25/1978 |
| 4084389 | Air conditioning apparatus Air conditioning apparatus is disclosed. The apparatus is a terminal of the mixing type, receiving primary conditioned air, and delivering that air or a mixture including that air and recirculated air as required, for air conditioning. The rate at which p... | 04/18/1978 |
| 4077787 | Air cleaner for automotive vehicle An air induction pipe for an air cleaner formed of a synthetic resin and as a pair of longitudinally divided pipe members. Each of the pipe members includes a fixing portion integrally formed thereon for mounting a diaphragm unit which is used to control ... | 03/07/1978 |
| 4044947 | Condition and volume control for air conditioning system mixing dampers In an air conditioning system wherein the outdoor air and recirculated air mixing dampers are operated to control the volume and condition, such as temperature, of the mixture of outdoor air and return air to be discharged to at least one zone, a control ... | 08/30/1977 |
| 4013217 | Double induction air conditioning with fluidic control A double induction mixing box is provided with damperless openings to each of two opposite side passages in the box and fluidic diverter means between a primary air supply to the box and the opposite side passages is used for controlling the diversion of ... | 03/22/1977 |
| 3994335 | Multizone air conditioning system In a multizone air control system employing constant flows of hot and cold air, the hot or cold air is variably mixed with recirculated air to provide zone temperature control.... | 11/30/1976 |
| 3989187 | Air-conditioning system apparatus The present invention relates to an air-conditioning system that employs fluidic principles to provide temperature control. A fluidic oscillator is utilized to control the conditioning process in which the imput of primary and secondary air to the system ... | 11/02/1976 |
| 3989186 | Engine induction air flow control In an internal combustion engine air cleaner snorkel having an end open to ambient temperature air and an auxiliary inlet open to heated air, the induction air flow temperature is regulated by a pivoted damper assembly having a guide member positioned by ... | 11/02/1976 |
| 3983930 | Temperature control system and multifunctional servomotor therefor An automatic control system for regulating the temperature of the passenger compartment in an automotive vehicle is simplified and improved by the use of a power servomotor having a vacuum motor, an electrical programmer, and a diverter valve as component... | 10/05/1976 |
| 3974808 | Air intake duct assembly An air intake duct assembly for an internal combustion engine air cleaner, the duct assembly including a duct having an ambient air inlet, a branch exhaust manifold heated air inlet and an air discharge outlet adapted to be coupled to an air cleaner. A fl... | 08/17/1976 |
| 3973728 | Thermal sensor In an internal combustion engine air cleaner, a thermal sensor delivers a vacuum signal to a vacuum motor which actuates a valve unit controlling admission of ambient temperature and heated air. The sensor receives induction passage vacuum and has a bimet... | 08/10/1976 |
| 3967779 | Air mixing valve having a thermal motor actuator for effecting adjustment A mixing valve for mixing airstreams in an air distributing system including a housing having first and second air inlet passages therein for receiving respective airstreams of different characteristics, valve means cooperating with the first and second i... | 07/06/1976 |
| 3934795 | Dual duct variable volume air conditioning system A dual duct variable volume air conditioning system has a first, cold duct for supplying cold air and a second, reset duct for supplying either hot air in a first mode of operation or cold air in a second mode of operation. A self-contained system regulat... | 01/27/1976 |
| 3933306 | Air inlet means for air conditioning installations or the like(II) An air conditioning system comprising a room to which conditioned air having temperature and volume parameters is delivered. Temperature sensing means is provided for sensing the temperature of the air in the room. Air supply means responsive to the sensi... | 01/20/1976 |
