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7588059 |
Dispensing tool assembly for evacuating and charging a fluid system
A fluid dispensing tool assembly includes an upper tool unit having an evacuation port and a fluid inlet port with fluid actuated poppet valves selectively controlling the flow through each port to...
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7500368 |
System and method for verifying proper refrigerant and airflow for air conditioners and heat pumps in cooling mode
An apparatus for the diagnosis of a cooling system which receives inputs in the form of data about a cooling system, and measurements made from the cooling system, and which then calculates the...
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7493773 |
Refrigerant monitoring system and method
A system for monitoring the amount of refrigerant supplied from a refrigerant tank to a plurality of refrigerant systems comprising a tank valve for connection to a refrigerant tank at a...
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7428822 |
Vacuum sensor
The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid...
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7404414 |
Dispensing tool assembly for evacuating and/or charging a fluid system
A fluid dispensing tool includes parallel spaced first and second manifolds supporting therebetween an elongated actuator unit having a tubular body confining a piston connected to move a valve...
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7383693 |
Cooling device
A cooling device includes a branch line with one end thereof communicating with a supplying line, and the other end communicating with a recovery line, wherein a part of the refrigerant supplied to...
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7370483 |
Refrigerant cycle with three-way service valve for environmentally friendly refrigerant
A refrigerant cycle is provided with a single three-way service valve that is utilized for draining and adding refrigerant. In the prior art, a second two-way valve was used in combination with the...
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7370673 |
Self-contained isolated port
A service valve for a refrigerant system comprising a valve body and a system port. The valve body has at least one fluid passage integrated therein including a longitudinal bore. An orifice is...
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7310965 |
Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus
The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid...
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7310964 |
Refrigerant charging using line having a control valve
A charging system for charging a refrigeration system of a vehicle includes a refrigerant source, a coupler, a line, and a control valve. The coupler is adapted for connection to a connection point...
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7293419 |
Refrigerant transfer system and method
A refrigerant recovery/recycling system includes a source container fluidly connected to a recovery/recycling device via a vaporizer. Liquid refrigerant is introduced into the vaporizer via the...
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7275383 |
Device for measuring pressure in automobile air conditioner and charging same with refrigerant and method of same
A portable device for measuring the refrigerant pressure in an automobile air conditioning system and, if needed, charging the system with additional refrigerant, is provided. An actuator is...
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7254954 |
Refrigerant charging system and method using cartridges and scale
A refrigerant charging system and method for charging a refrigeration system with refrigerant includes a refrigerant source, one or more cartridges, an input line, an output line, and a scale...
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7210300 |
Refrigerant charging system and method with cartridges
A refrigerant charging system and method for charging a refrigeration system with refrigerant includes a refrigerant source, one or more cartridges, an input line, a scale, a pressure sensor and a...
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7194870 |
High performance dehumidifier
A dehumidifier includes a compressor delivering hot compressed refrigerant, a desuperheater coil receiving refrigerant from the compressor and condensing same, a condenser coil receiving...
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7168256 |
Apparatus and method for recovery and recycle of optical fiber coolant gas
An apparatus and method for recovering and recycling a coolant gas from a heat exchanger. The apparatus comprises a coolant gas recovery section, and analysis section, and a coolant gas blending...
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7146824 |
Valve plug and valve provided therewith
A valve plug is threadedly engaged with a valve stem so as to be inserted from an open end of a passage for charging with and/or releasing from a compressed fluid, toward an inner part of the...
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7127901 |
Helium management control system
A helium management control system for controlling the helium refrigerant supply from a common manifold supplies a plurality of cryogenic refrigerators with an appropriate helium supply. The system...
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7124598 |
Pressure testing and refrigerant recharging conduit assembly for automobiles
A combination pressure measurement/charging system may include a conduit coupled to a refrigerant can. The conduit may be coupled to a low-pressure side of a refrigerant system. The system may...
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7117688 |
Refrigeration device
The present invention allows an optimal quantity of refrigerant to be quickly and easily charged into the refrigeration device. In a refrigeration device that includes a refrigerant cycle circuit...
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7114344 |
Air conditioner access and service fittings
An air conditioner service fitting is provided and includes a valve body comprising a threaded bore and an annular valve seat extending around the bore. The valve body is configured and the valve...
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7107781 |
Pressure testing and refrigerant recharging hose assembly for automobiles
A combination pressure measurement/refrigerant charging apparatus may include a shutoff valve that includes a piercing pin and a pressure gauge. The piercing pin may be used to pierce a refrigerant...
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7096685 |
Coupling for servicing a pressurized system
A service device connects to a service port of a pressurized system. The device includes a valve opening member for opening a valve within the port. The device can attach to a service unit for...
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7086237 |
Method and apparatus to measure and transfer liquefied refrigerant in a refrigeration system
A method, system and apparatus for transferring a measured level of liquefied refrigerant to a refrigeration system includes the steps of purging a calibration container; filling the calibration...
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7077149 |
Fluid injection system
An apparatus for injecting a fluid into a closed pressurized system can be connected to a service port of the system. The fluid can be introduced into the system using the resting and operating...
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7051761 |
Fill and bleed valve for liquid cooling system
A fill and bleed valve for filling a liquid cooling system has a single axially movable plunger, slidable within a central block bore, from a normal operating position to a filling position that...
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7051547 |
Air conditioning system for a motor vehicle
The invention relates to an air conditioning system for motor vehicles, which contains a connection piece for a pressure switch/pressure sensor, said connection piece being suitable for evacuating...
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7033508 |
Contaminant flushing device, system, and method, particularly suited for refrigeration system servicing
Fluid decontamination device includes a base having a fluid passage in it. An observation window is provided in the base for allowing a user to observe a fluid in the fluid passage. A differential...
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7010927 |
Refrigerant system with controlled refrigerant charge amount
An air conditioning system includes a supplemental storage container that allows for transferring refrigerant into or out of an air conditioning or refrigeration system based upon different...
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6986262 |
Binary refrigeration unit
With the intention of reducing power consumption and noise, there is provided a binary refrigeration unit which can be started even by a compressor equipped with a small-torque and compact motor....
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6959557 |
Apparatus for the storage and controlled delivery of fluids
A vessel for containing a refrigerant fluid in a vapor compression system. The vessel includes a housing defining a fixed interior volume and an internal structure subdividing the interior volume...
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6901947 |
Rapid evacuation and charging system, and apparatus and methods relating thereto
A system for performing rapid charging and evacuation of systems that contain a fluid, such as cooling systems on refrigeration products. In addition, the invention relates to methods of...
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6889519 |
Fluid delivery apparatus and method
A fluid delivery apparatus provides for controlled delivery of fluids into a fluid system. The fluid delivery apparatus can allow a defined volume of fluid to be delivered to the fluid system...
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6845626 |
Refrigeration apparatus
This invention makes it possible to charge a refrigeration apparatus with the amount of refrigerant that the refrigeration apparatus requires at the time of onsite installation. As a result, the...
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6843070 |
Refrigerant recycling system with single ball valve
A refrigerant handling system includes coupling apparatus for coupling a refrigerant processing apparatus to an automotive air-conditioning system. The coupling apparatus includes a ball valve...
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6837064 |
Coupling for servicing a pressurized system
A service device connects to a service port of a pressurized system. The device includes a valve opening member for opening a valve within the port. The device can attach to a service unit for...
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6826925 |
Apparatus for collecting and purifying refrigerant in air conditioning systems
An apparatus ( 100 ) for collecting and purifying a refrigerant fluid in air conditioning systems, comprising a first tubular body ( 110 ), used as evaporator and separator of impurities of...
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6823688 |
Refrigerant filler casing structure
A refrigerant filler casing structure comprises a container, having a pressure gauge accommodating groove, a main body accommodating groove, a connector accommodating groove, and a duct...
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6745591 |
Cooling-lubricant replenishing accessory for a compressor
A cooling lubricant replenishing device for a compressor has an adapter, a flexible tube, a three-way tube, a pressure gauge, and a check valve. The adapter is adapted to selectively mount on a...
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6735964 |
Air conditioning system with refrigerant charge management
An air conditioning system includes an outdoor unit and multiple indoor units. Each of the indoor units has its own coil assembly and fan and is dedicated to heating a particular area within a...
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6722141 |
Apparatus and methods for placing an additive fluid into a refrigerant circuit
A supply canister is partially filled with a refrigerant circuit additive liquid and is partially evacuated. Additive liquid from the canister may be placed into the refrigerant circuit of an air...
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6719003 |
Charge valve for an air conditioning system
A service valve for a CO2 refrigerant based air conditioning system in a vehicle. The service valve includes a dynamic seal that is opened and closed during servicing of the air conditioning...
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6705100 |
Purge
A purging device for a system accumulating condensable and non-condensable gases. The purging device comprises: a purge tank; apparatus receiving the condensable and non-condensable gases from the...
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6681812 |
Attachment for a vacuum pump
An attachment ( 3 ) for a vacuum gun ( 2 ), for introducing new coolant into a cooling system of a vehicle after spent coolant has been drained from the cooling system. The attachment ( 3 )...
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6668574 |
Refrigeration manifold
A manifold for charging a system which when in use cycles a refrigerant between liquid and gaseous states is disclosed. The manifold includes a housing defining a flow passage extending from an...
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6662587 |
AC and HP service valves for manufactured housing
Apparatus for connecting a first pre-charged section of an air conditioning system to refrigerant lines connecting the section to a second section of the system. A service unit is employed to...
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6655407 |
Refrigerant charging tool
A refrigerant charging tool. In a described embodiment, a refrigerant charging tool has two separately formed handles pivotably attached to each other. One of the handles has a container piercing...
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6637726 |
Valve core
A valve core includes a generally cylindrical core body fixed in a core mounting hole formed in a counterpart member, the core body having an open end, a moving shaft extending through the core...
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6619057 |
System and method for low side pump down in mobile refrigeration unit
A microprocessor controlled system performs low pressure side pumpdown with the assistance of a service technician. When the refrigerant in the system is transferred to the high pressure side, the...
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6619065 |
Heating ventilating and air conditioning worker's servicing cart
A heating, ventilating and air conditioning worker's servicing cart consisting of a base platform to which is mounted an axle holding two anterior wheels, two posterior platform legs, two pairs of...
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