Refrigerant with leak detection dye concentrate

Details Refrigerant with leak detection dye concentrate Refrigerant with leak detection dye concentrate

2007-08-07

2007-08-07

Larkin, Daniel S. (Department: 2856)

Measuring and testing

With fluid pressure

Leakage

C220S086100, C252S964000

Reexamination Certificate

active

11238346

ABSTRACT:
A container including a mixture of refrigerant and leak detection dye medium is disclosed for adding to an air conditioning or refrigeration system. The container includes a storage container adapted to communicate with an air conditioning or refrigeration system for supplying material inside the container to the air conditioning or refrigeration system. A refrigerant is contained within the container, along with a leak detection dye medium. The dye medium including a dye adapted to fluoresce when exposed to incident radiation below about 500 nm. The dye medium having an initial state where at least a portion of the dye medium is in a non-liquid form separate from the refrigerant and includes a concentrated dye, and a second state where the dye is dispersed or mixed with the refrigerant. A method of forming the mixture within the container is also disclosed.

REFERENCES:
patent: 4938063 (1990-07-01), Leighley
patent: 5149453 (1992-09-01), Parekh
patent: 5167140 (1992-12-01), Cooper et al.
patent: 6101867 (2000-08-01), Cavestri
patent: RE36951 (2000-11-01), Cooper et al.
patent: 6165384 (2000-12-01), Cooper et al.
patent: 6183663 (2001-02-01), Kalley et al.
patent: 2004/0084095 (2004-05-01), Knowles
PCT/2004/014136.

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