Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2005-07-05
2005-07-05
Trieu, Van T. (Department: 2636)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S632000, C340S506000, C340S514000, C340S515000
Reexamination Certificate
active
06914532
ABSTRACT:
Method and apparatus for testing the operation of an alarm for a ventilated enclosure, such as a fume hood or bio-safety cabinet. Flow of gas being exhausted from the enclosure may be adjusted to a known value below or above a threshold value at which the alarm provides an indication that flow is unacceptably low or high. Adjustment of flow to the known value may be performed without requiring a manual measurement of flow, e.g., by performing a traverse in a duct leading from the enclosure.
REFERENCES:
patent: 4098174 (1978-07-01), Landy
patent: 4245779 (1981-01-01), Ardiente
patent: 4466341 (1984-08-01), Grogan
patent: 4497242 (1985-02-01), Moyer
patent: 4528898 (1985-07-01), Sharp et al.
patent: 4706553 (1987-11-01), Sharp et al.
patent: 4934256 (1990-06-01), Moss et al.
patent: 5014541 (1991-05-01), Sides et al.
patent: 5090303 (1992-02-01), Ahmed
patent: 5092227 (1992-03-01), Ahmed et al.
patent: 5115728 (1992-05-01), Ahmed et al.
patent: 5170673 (1992-12-01), Ahmed et al.
patent: 5215497 (1993-06-01), Drees
patent: 5240455 (1993-08-01), Sharp
patent: 5470275 (1995-11-01), Jacob et al.
patent: 5475364 (1995-12-01), Kenet
patent: 5562537 (1996-10-01), Zver et al.
patent: 5697838 (1997-12-01), Morris
patent: 5733188 (1998-03-01), Jacob
patent: 5764579 (1998-06-01), McMasters et al.
patent: 5798697 (1998-08-01), Wiseman
patent: 5882254 (1999-03-01), Jacob
patent: 5951394 (1999-09-01), Pariseau
patent: 6081196 (2000-06-01), Young
patent: 6131463 (2000-10-01), Morris
patent: 6272399 (2001-08-01), Fish, Jr. et al.
patent: 6357393 (2002-03-01), Coiro, Sr. et al.
patent: 6425297 (2002-07-01), Sharp
Crooks Kenneth William
Smith Andrew
Ansems Gregory M.
Honeywell International , Inc.
Trieu Van T.
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