Gas separation – Plural serial basically diverse separating media
Reexamination Certificate
2005-02-23
2008-08-26
Hopkins, Robert A. (Department: 1797)
Gas separation
Plural serial basically diverse separating media
C055S443000, C055S482000, C055SDIG020
Reexamination Certificate
active
07416573
ABSTRACT:
A spark suppression device includes a plurality of blades or vanes that are mounted transversely in a duct of an air handling/dust collection system communicating with a spark source. A controlled flow of air carries sparks from the spark source through the spark suppression device. Sparks are suppressed by turbulence created in the airstream from the blades that have a downstream curvature. The turbulence strips away a hot air bubble surrounding a spark ember, thereby effectively cooling the spark and significantly reducing combustion at the spark ember. Other attributes of the invention contributing to spark suppression include an overlapping arrangement of the blades that results in high-velocity impact of the sparks against the blades, thereby breaking up the spark embers into smaller embers, and creation of rapid increased pressure within the spark suppression device that also helps to strip away the spark ember from the surrounding hot air bubble.
REFERENCES:
patent: 186345 (1877-01-01), Hudson
patent: 233171 (1880-10-01), Swan
patent: 2036127 (1936-03-01), Edholm
patent: 3831318 (1974-08-01), Richmond
patent: 4077567 (1978-03-01), Ginn et al.
patent: 4266955 (1981-05-01), Hackney
patent: 5463967 (1995-11-01), Gielow et al.
patent: 5536207 (1996-07-01), Robinson et al.
patent: 5645481 (1997-07-01), Robinson et al.
patent: 5678638 (1997-10-01), Baker
patent: 5702244 (1997-12-01), Goodson et al.
patent: 5931227 (1999-08-01), Graves
patent: 6139425 (2000-10-01), Yazici et al.
patent: 6547433 (2003-04-01), Yazici et al.
patent: 6595848 (2003-07-01), Robinson
patent: 6878056 (2005-04-01), Robinson
patent: 2002/0126572 (2002-09-01), Yazici et al.
Irvine William O.
Lindgren Ross A.
Blender Products, Inc.
Hopkins Robert A.
Sheridan & Ross P.C.
LandOfFree
Method and apparatus for suppressing sparks does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for suppressing sparks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for suppressing sparks will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3994359