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Class Information
Number: 252/964
Name: Compositions > Leak detection
Description: Art collection of material related to physical indication of leaks.

Patents under this class:

Patent Number Title Of Patent Date Issued
7704750 Visual spill indicator Apr. 27, 2010
7585428 Electrolyte with enhanced leakage detection for electrolytic capacitors and method for detecting leakage Sep. 8, 2009
7552623 Enhanced leak detection dye carrier Jun. 30, 2009
7251984 Refrigerant with leak detection dye concentrate Aug. 7, 2007
7213534 Device and method for detection/indication of liquid leakage May. 8, 2007
7148066 Dye solutions for use in methods to detect the prior evaporation of anhydrous ammonia and the production of illict drugs Dec. 12, 2006
6851442 Fluid addition apparatus Feb. 8, 2005
6807976 Fluid addition apparatus Oct. 26, 2004
6746630 Oxygen scavengers independent of transition metal catalysts Jun. 8, 2004
6436311 Sampling material for a carbonyl compound in a gas Aug. 20, 2002
6248890 Naphthalimide diester fluorescent tracers having improved solubility and fluorescence Jun. 19, 2001
6183663 Leak detection dye delivery system Feb. 6, 2001
6170320 Method of introducing an additive into a fluid system, especially useful for leak detection, as well as an apparatus for leak detection and a composition useful for leak detection Jan. 9, 2001
6165384 Full spectrum fluorescent dye composition for the optimization of leak detection processes Dec. 26, 2000
6132636 Leak-detecting refrigerant compositions containing oxazolyl-coumarin dyes Oct. 17, 2000
6101867 Dye concentrate Aug. 15, 2000
6070455 Leak detection additives Jun. 6, 2000
6070454 Leak detection additives for use in heating, ventilating, refrigeration, and air conditioning systems Jun. 6, 2000
6013697 Tire sealant composition Jan. 11, 2000
5988945 Method for preventing corrosion of the vessel of a storage tank, and storage tank for implementing it Nov. 23, 1999
5979226 Leak detection additives for oil or fuel systems Nov. 9, 1999
5942186 Adhesive plate with indicator function and indicator therefor Aug. 24, 1999
5934830 Apparatus for preventing corrosion of the vessel of a storage tank Aug. 10, 1999
5783110 Composition for the detection of electrophilic gases and methods of use thereof Jul. 21, 1998
5589631 Leak detection with non-toxic liquids Dec. 31, 1996
RE35395 Leak detection in heating, ventilating and air conditioning systems using an environmentally safe material Dec. 10, 1996
RE35370 Leak detection in heating ventilating and air conditioning systems using an environmentally safe material Nov. 5, 1996
5560855 Method of tagging and subsequently indentifying refrigerant lubricants Oct. 1, 1996
5357782 Leak detection in heating, ventilating and air conditioning systems using an environmentally safe material Oct. 25, 1994
5352244 Process for tracing liquid flow with a dye-impregnated paper strip Oct. 4, 1994
5320967 Boiler system leak detection Jun. 14, 1994
5149453 Method for detecting leakage in a refrigeration system Sep. 22, 1992
4822743 Method and cloth for detecting leaks in closed bodies Apr. 18, 1989
4791155 Assembly for monitoring ionising radiation Dec. 13, 1988
4784959 Method of detecting hydrocarbon fuel leaks Nov. 15, 1988
4758366 Polyhalogenated hydrocarbon refrigerants and refrigerant oils colored with fluorescent dyes and method for their use as leak detectors Jul. 19, 1988
4636475 Apparatus and method for monitoring stored material Jan. 13, 1987
4615828 Method and apparatus for detecting hydrocarbon fuel leaks Oct. 7, 1986
4487613 Odorization of combustible hydrocarbon gases Dec. 11, 1984
3991360 Sensor assembly for a halogen gas leak detector Nov. 9, 1976
3955929 Gas detecting sensor May. 11, 1976

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