Fluent material handling – with receiver or receiver coacting mea – With signal – indicator – recorder – inspection means or exhibitor – Level or pressure in receiver
Reexamination Certificate
2005-09-20
2005-09-20
Maust, Timothy L. (Department: 3751)
Fluent material handling, with receiver or receiver coacting mea
With signal, indicator, recorder, inspection means or exhibitor
Level or pressure in receiver
C141S094000, C141S198000, C141S255000, C141S302000, C222S227000, C222S236000, C222S265000
Reexamination Certificate
active
06945287
ABSTRACT:
A backflow blocker prevents backflow of gas to a lower pressure first stage of a system for processing particles from a downstream higher pressure second stage of the system. The blocker comprises an upright duct connecting the first stage to the second stage. The duct is at least partly filled with a column of particles passing from the first stage to the second stage. By properly selecting the duct dimensions and by controlling the flow rate of particles into and from the duct, the velocity of downwardly moving particles in the duct can be made to exceed the velocity at which the gasses flow through the particles in the duct. This prevents gasses from flowing from the lower pressure downstream stage to the higher pressure upstream stage.
REFERENCES:
patent: 4378897 (1983-04-01), Kattelmann
patent: 4547725 (1985-10-01), Oetiker et al.
patent: 4737316 (1988-04-01), Macedo et al.
patent: 5938983 (1999-08-01), Sheaffer et al.
patent: 6143187 (2000-11-01), Robertson
Crown Iron Works Company
Maust Timothy L.
Nawrocki, Rooney & Sivertson P.A.
LandOfFree
Columnar seal for particle processing system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Columnar seal for particle processing system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Columnar seal for particle processing system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3413386