Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Structured visual or optical indicator – per se
Reexamination Certificate
2011-04-19
2011-04-19
Alexander, Lyle A (Department: 1773)
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Structured visual or optical indicator, per se
C422S426000, C422S430000, C422S068100, C436S001000, C436S003000, C436S164000, C002S457000
Reexamination Certificate
active
07927558
ABSTRACT:
A method, system, and apparatus are provided for use with exposure protection systems or equipment such as respiratory protection devices. One system is provided for detecting a breach of an exposure protection device by an amount of a target substance. The system includes an exposure protection device that isolates a protected environment from an external environment potentially including a target substance. The device includes a protective covering that includes a substantially transparent window. The system also includes a detector or detector element for indicating the presence of the target substance. Such a detector is capable of producing a visually observable indication upon detection of the level of target substance.
REFERENCES:
patent: 5734323 (1998-03-01), Hermes et al.
patent: 5976881 (1999-11-01), Klingner
patent: 7514039 (2009-04-01), Loomis et al.
patent: 2002/0011934 (2002-01-01), Cacioli et al.
patent: 2004/0141879 (2004-07-01), Loomis et al.
Kirollos Kirollos S.
Mihaylov Gueorgui M.
Truex Bryan I.
Alexander Lyle A
Microteq, LLC
Pike Bernard G.
Troutman Sanders LLP
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