[특허]Leak detection in heating, ventilating and air conditioning systems using an environmentally safe material

Leak detection in heating, ventilating and air conditioning systems using an environmentally safe material 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01N-037/00
출원번호	US-0312772 (1994-09-27)
발명자 / 주소	Henry Richard G. (Mayfield Heights OH 4)
출원인 / 주소	Bright Solutions, Inc. (Bloomfield Hills MI 02)
인용정보	피인용 횟수 : 37 인용 특허 : 0

초록 ▼

The present invention relates to the effective leak detection of refrigerants by the addition of dyes from the general chemical class of naphthalimide fluorescent dyes in a refrigeration system where said refrigeration system employs alone, or in combination, a refrigerant in a hermetic system such as, but not limited to, chlorofluorocarbons (CFC), hydrochlorofluorocarbons (HCFC), hydrofluorocarbons (HFC) and any hydrogen, halogenated or ether derivatives of the methane, hydrogen, halogenated, ether or cyclic derivatives of either ethane, propane, butane, pentane, mixtures of HCFC, HFC, hydrocarbons, carbon dioxide and ammonia. Leakage is determined by inspection of the sealed system using a lamp having an emission wavelength from 300 to 480 nanometers providing an indication of any system leakage.

대표청구항 ▼

A method of detecting leaks in a refrigeration system that uses in combination a refrigerant and a refrigeration system lubricant comprising the steps of: preparing a mixture that consists of said refrigeration system lubricant mixed with a predetermined amount of a dye selected from the general class of naphthalimide dye structures as a fluorescent dye; adding a predetermined amount of the mixture to said refrigerant for use in refrigeration system; operating the system for a predetermined period of time to allow the mixture to mix with said combination of refrigerant and the refrigeration system lubricant; examining the system for a leak site with a lamp that produces light having an emission wavelength from 300 to 480 nanometers, directed at said refrigeration system; determining the presence of a leak site by the presence of a colored fluorescence detectable by visual observation under the light from said lamp at said leak site; and said dye, refrigerant and refrigeration system lubricant mixture seeping thru and appearing at said location of leak site, the remaining at said site without undergoing chemical oxidation changes to provide capability for stable fluorescent indication of a leak.

이 특허를 인용한 특허 (37)

Eric W. Kesler ; Donald L. Konieczny ; Stephen F. Sullivan, Adsorbent unit with refrigerant tracer dye compartment.
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Mahaffey ; Jr. Robert L., Aryloxy-poly(oxyalkylene) naphthalimide derivative colorants.
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Utecht Ronald E. ; Lewis David E., Chemically substituted chromophores and fluorophores of high solubility and their use as fluid visualizing agents.
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Verdicchio Robert J. ; Kaiser Stewart R. ; Walsh Shawn, Composition for the detection of electrophilic gases and methods of use thereof.
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Verdicchio Robert J. ; Kaiser Stewart R. ; Walsh Shawn, Composition for the detection of electrophilic gases and methods of use thereof.
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Mahaffey ; Jr. Robert L. ; Spry James M., Compositions comprising aryloxypolyoxyalkylene naphthalimide derivative colorants.
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Nappa, Mario Joseph; Minor, Barbara Haviland, Compositions comprising fluoroolefins and uses thereof.
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Nappa, Mario Joseph; Minor, Barbara Haviland; Sievert, Allen Capron, Compositions comprising fluoroolefins and uses thereof.
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Nappa, Mario Joseph; Minor, Barbara Haviland; Sievert, Allen Capron, Compositions comprising fluoroolefins and uses thereof.
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Nappa, Mario Joseph; Minor, Barbara Haviland; Sievert, Allen Capron, Compositions comprising fluoroolefins and uses thereof.
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Nappa, Mario Joseph; Minor, Barbara Haviland; Sievert, Allen Capron, Compositions comprising fluoroolefins and uses thereof.
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Nappa, Mario Joseph; Minor, Barbara Haviland; Sievert, Allen Capron, Compositions comprising fluoroolefins and uses thereof.
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Sievert, Allen Capron; Nappa, Mario Joseph; Minor, Barbara Haviland; Leck, Thomas J.; Rao, Velliyur Nott Mallikarjuna; Swearingen, Ekaterina N.; Schmitz, Corneille; Mouli, Nandini C.; Perti, Deepak, Compositions comprising fluoroolefins and uses thereof.
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Leck, Thomas J.; McFarland, Mack; Minor, Barbara Haviland; Steichen, John Carl, Detectable refrigerant compositions and uses thereof.
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Cavestri Richard C., Dye concentrate.
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Bickett,Tim; Eiter,Frank, Dye solutions for use in methods to detect the prior evaporation of anhydrous ammonia and the production of illict drugs.
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Friswell Michael R., Fluorescent tracer dyes.
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Cooper B. William ; Duerr John T., Full spectrum fluorescent dye composition for the optimization of leak detection processes.
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Fleury Byron ; Stanton Andrew, Gas alarm.
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Fleury Byron ; Stanton Andrew, Gas alarm.
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Peterson Roger, Ground water infiltration detection system.
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Cavestri Richard C., Leak detection additives.
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Cavestri Richard C, Leak detection additives for use in heating, ventilating, refrigeration, and air conditioning systems.
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Cavestri Richard C, Leak detection in heating, ventilating, refrigeration, and air conditioning systems utilizing adsorptive materials.
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Scancarello, Marc Joseph, Leak detector sensor systems using tag-sensitized refrigerants.
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Burke,John; Kalley,Terrence D.; Gentit,David, Light source provided with a housing enclosing voltage regulator means and method of manufacturing thereof.
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Matsumoto, Tomoya, Lubricating oil composition for refrigerating machines.
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Don Michau, Method and apparatus for introducing a tablet into a climate control system.
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Yost, Robert W.; Lavelle, James P.; Khokhar, Umar M., Method for enhancing mineral oil miscibility and oil return.
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Brass, Jack, Method of applying liquid fluorescent dyes to the internal parts of air conditioning or refrigeration systems.
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Mahaffey ; Jr. Robert L., Naphthalimide colorants with improved compatibility in refrigeration and air conditioning lubricants.
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Likavec Wayne R. ; DiPietro Thomas C., Naphthalimide diester fluorescent tracers having improved solubility and fluorescence.
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Dieckmann, John T.; Westphalen, Detlef, System and method of refrigeration.
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Leck, Thomas J.; Bricker, Stuart C.; Sievert, Allen C., Tracer-containing compositions.
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Leck, Thomas J.; Bricker, Stuart C.; Sievert, Allen Capron, Tracer-containing compositions.
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Kranz, Kenneth J., Ultraviolet light illumination and viewing system and method for fluorescent dye leak detection.
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Ramachandran,Ajit; Sliger,Keith; Plasek,Ronald A., Vacuum sensor.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Leak detection in heating, ventilating and air conditioning systems using an environmentally safe material 원문보기

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Leak detection in heating, ventilating and air conditioning systems using an environmentally safe material 원문보기

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