Class / Patent application number | Description | Number of patent applications / Date published |
062292000 | WITH MEANS FOR CHARGING CLOSED REFRIGERATION PRODUCING SYSTEM | 17 |
20080229774 | DEVICE FOR AUTOMATIC PROCESSING OF CONTAMINATED REFRIGERANT FROM AN AIR CONDITIONING SYSTEM - A device for automatic processing of contaminated refrigerant from an air conditioning system, said device comprising a compressor for compressing refrigerant. Said device further comprising an oil separator, said oil separator receiving compressed refrigerant from said compressor; said oil separator further including means for draining oil separated from said compressed refrigerant. Said device further comprising a storage tank, said storage tank receiving and temporarily containing said compressed refrigerant from said oil separator. Said storage tank including a vapor port and a liquid port. Said device further comprising a vacuum pump for creating low pressure within said device during evacuation of refrigerant. Said device further comprising a low pressure service hose for connecting said device to said air conditioning system. Said device further comprising a high pressure service hose for connecting said device to said air conditioning system. Said device further comprising at least one automatic multi-position ball valve. Said at least one automatic multi-position ball valve controlling flow of said refrigerant through said device. | 09-25-2008 |
20080289353 | Refrigerant service port valve for air conditioners - The refrigerant service port valve for air conditioners has a valve body defining a main fluid conduit adapted for insertion into a coolant line using compression fittings at opposite ends of the conduit. A pedestal is mounted on the exterior conduit wall. The pedestal has a bore therethrough forming a lower service passage that enters the main fluid conduit, and an internally threaded blind bore parallel to the lower service passage. A slider is mounted on the pedestal, the slider having a male quick connect fitting defining an upper service passage. The upper service passage may be aligned with the lower service passage in an open position to service the system, or the slider may be moved to align the upper service passage with the blind bore to access a setscrew, which is raised partially into the upper service passage to lock the valve in a closed position. | 11-27-2008 |
20090107164 | REFRIGERANT ACCUMULATION AND OIL RECOVERY DEVICE FOR REFRIGERANT FLUID RECOVERY/REGENERATION/RECHARGING SYSTEMS - A refrigerant accumulation and oil recovery device for recovery/regeneration/recharging units for a refrigerant fluid withdrawn from refrigeration or air conditioning plants or heat pumps, characterised by comprising a refrigerant fluid accumulation/evaporation vessel and an oil recovery vessel, said vessels being closed at their top by at least one plate which supports them both, the plate presenting a plurality of passages defining, with said vessels, a part of the charging/recycling circuit of said recovery/regeneration unit, in which said accumulation/evaporation vessel and said oil recovery vessel present at least one wall in common, such that any refrigerant fluid leakage from one of said vessels at the connection interface between said common wall and said plate is recovered into the other. | 04-30-2009 |
20090188271 | METHOD AND APPARATUS FOR CLEARING OIL INJECT CIRCUIT FOR CHANGING OIL TYPES - A refrigerant recovery unit is provided that can clear oil from an oil inject path in order to prepare the unit to switch over to a different kind of oil. The refrigerant recovery unit includes an oil inject circuit that receives an oil from the oil bottle into the refrigerant system. The refrigerant recovery circuit is coupled in fluid communication with the oil inject circuit. The refrigerant recovery circuit is operable to receive and transfer a fluid drawn through the oil inject circuit. A controller is operatively connected to the refrigerant recovery circuit and to the oil inject circuit so that as the fluid is drawn through the oil inject circuit a quantity of the oil in the oil inject circuit is removed. | 07-30-2009 |
20100031687 | Conduit Joint for a Refrigerant Charging Device - A conduit joint for a refrigerant charging device comprises an upper housing including a connection tube disposed on the outer wall thereof and a first chamber formed therein, a conduit connected between the connection tube and an outlet, a first compression spring mounted in the fist chamber; a lower housing fitted on the upper housing and including a second chamber fixed therein for communicating with the first chamber and balls retained on the outer wall thereof; a leakproof ring disposed in the second chamber and on the valve stem; an action loop mounted in the second chamber and under the leakproof ring, wherein the action loop pushes the balls outward by using the leakproof ring; an outer cover fitted around the lower housing, between the outer cover and the lower housing is defined a second compression spring, wherein the outer cover is pushed to move upward by the balls. | 02-11-2010 |
20100326117 | INJECTION DEVICE - The invention relates to an injection device for injecting an injection medium into a volumetric flow of a line system. The injection device comprises a housing with at least one first compartment which is set up to receive an injection medium, and at least one second compartment which is spatially separated from the first compartment, both compartments having an injection unit. | 12-30-2010 |
20110041540 | MODULAR UPGRADEABLE PNEUMATIC/HYDRAULIC MANIFOLD - An upgradeable A/C maintenance system and methodology is provided including one or more modular manifolds for mounting and fluidly connecting several components. Embodiments include first and second manifolds, each for removably mounting a plurality of components, and each comprising an internal passage for fluidly connecting at least two of the plurality of components to each other, and a port for fluidly connecting the internal passage to an external surface of the first manifold. The first and second manifolds are removably attachable to each other such that their respective ports fluidly communicate with each other. The first manifold provides a first functionality for the system when the second manifold is not attached to the first manifold, and the second manifold provides a second functionality different from the first functionality when the second manifold is attached to the first manifold. | 02-24-2011 |
20110079036 | REFRIGERANT RECOVERY MACHINE WITH IMPROVED CAM WHEEL ASSEMBLY - A high-durability cam wheel assembly mounted in a shell of a refrigerant recovery machine is disclosed to include an open frame member, rigid wear strips mounted in the open frame member at two sides, a sliding block having friction cylinders arranged in parallel at two opposite sides and respectively disposed in contact with the rigid wear strips and a cam wheel set formed of a first cam wheel and a second cam wheel and inserted through an axle bearing in sliding block for causing the sliding block to move back and forth in the open frame member. | 04-07-2011 |
20120312047 | GAS ANALYZER SYSTEM CONFIGURED TO DETERMINE THE CONCENTRATION OF A REFRIGERANT GAS AND/OR THE CONCENTRATION OF CONTAMINANT GASES IN AN AUTOMOTIVE AIR CONDITIONING SYSTEM - A gas analyzer system to determine the concentration of gases in an automotive air conditioning system comprising: an infrared multi-detector device equipped with a gas analysis chamber; an emitter source emitting infrared radiation in the analysis chamber; infrared multi-detectors generating an electrical measurement quantity based on the absorption of radiation by the gas; a suction pump creating a depression inside the analysis chamber; and an electronic control unit determining a main automotive refrigerant gas concentration and the contaminant gases concentration, based on electrical measurement quantities provided by the multi-detectors and a reference electrical quantity. The control unit controls the pump to suck the gases in the analysis chamber until a condition of absence of gases is achieved, wherein the internal pressure of the chamber reaches a minimum pressure, and then determines the reference electrical quantity, based on the electrical quantity generated in the condition of absence of gases. | 12-13-2012 |
20130086934 | INSPECTION PORT - A manifold gauge set has at least one sight glass window for viewing contents of a refrigeration system or an air conditioning system being serviced. The window may be non-planar to achieve an appearance that varies with the presence or absence of liquid. Such a non-planar window may be in the form of a dome, prism or a fresnel lens. The gauge set may have a second light transmissive window to allow light to illuminate system contents being viewed. A light source may be provided to illuminate system contents being viewed. The light source may provide light through the same window that is used for viewing contents. A diffuser may be provided with a second window to achieve an illuminated background for viewing system contents. Similar configurations may be used in standalone sight glasses, vacuum pumps, and recovery machines. | 04-11-2013 |
20130118198 | Apparatus and Method for Identifying and Operating Air Purge in Safe Mode and Having a Dip Tube - A refrigerant recovery unit is provided and includes a safe purging mode. The safe purging mode allows non-condensable gases to be incrementally purged from a storage tank when the determined ideal vapor pressure is high, such as 40 p.s.i., in order to minimize refrigerant loss during purging. The purging can be done in small increments of time, pressure or mass. The storage tank can include a dip tube that extends into the liquid portion of the refrigerant in order to heat up the refrigerant in the tank with the heated recovered refrigerant. | 05-16-2013 |
20140069133 | Service Port Cap with Click Lock - A service port cap has a body configured to be snapped onto a service port such as an automotive air conditioning service port. The cap has an axial slot allowing the body to spread as it is pressed onto the service port. A rubberized plug in the top of the cap bears and seals against the end of the service port. Should a fluid leak develop through the service port, the rubberized plug maintains a seal until the pressure is sufficient to overcome the seal created by the plug. At this point, the leaking fluid is directed out through the axial slot in the cap. Thus, the cap does not blow off and the flow of leaking fluid is controlled so that it does not spew. One embodiment includes a locking ring that slides to a locking position to lock the cap onto a service or other port to form a fixed seal. | 03-13-2014 |
20140144170 | Charging device for cooling system - A charging device (1) of a cooling system comprising a coolant fluid; said charging device ( | 05-29-2014 |
20140318169 | SYSTEM FOR FAST AND ACCURATE FILLING OF A TWO-PHASE COOLING DEVICE, NOTABLY A HEAT PIPE, ADAPTED FOR USE IN AN AUTOMATED PROCESS - The current invention relates to a system for fast and accurate filling of a two-phase cooling device, comprising a binding device ( | 10-30-2014 |
20140338385 | DEVICE FOR CHARGING PRESSURIZED SYSTEMS - A device for charging a primary fluid system, such as an air-conditioning or cooling system, closed and at a first pressure (P | 11-20-2014 |
20160040918 | Improved Neutralization and Removal of Acids in HVAC Systems through the Use of Drying Agents - A composition for neutralizing or removing an acid in a refrigeration or air-conditioning system, the composition comprising a) an acid neutralizer or scavenger such as a metal alkoxide, carbodiimide, glycidyl ether, epoxide, alkanolamine, arylamine, overbased metal sulphonates, or an inorganic base (e.g. KOH); and b) a hydrolytic drying agent such as an orthoester (e.g. triethylorthoformate), acetal, epoxide, or a carbodiimide, whereby the water formed by neutralization is removed from the system. Also disclosed is the use of the composition for neutralizing or removing an acid from a refrigeration or air-conditioning system; and a method for neutralizing or removing an acid from the refrigeration or air-conditioning system. | 02-11-2016 |
20160187039 | REFRIGERANT RECOVERY/LOADING MANIFOLD - A refrigerant recovery/loading manifold for air-conditioning equipment has a manifold body and valves for opening and closing a passage inside the manifold body, the passages including a high-pressure-side passage, a low-pressure-side passage, a recovery-side passage, a vacuum-suction-side passage, a purging passage, and a common passage via which these passages communicate, at least a high-pressure-side valve being provided to the high-pressure-side valve being provided to the high-pressure-side passage, and at least a low-pressure-side valve being provided to the low-pressure-side passage; wherein a high-pressure connection means is provided to the low-pressure-side passage, the high-pressure connection means having a valve mechanism and being able to connect with a high-pressure-side quick joint. | 06-30-2016 |