Particle separation apparatus

Details Particle separation apparatus Particle separation apparatus

2007-11-27

2007-11-27

Smith, Duane (Department: 1724)

Gas separation

With separating media bypass or system gas pressure relief

Valved bypass means

C055S417000, C055SDIG030, C137S542000

Reexamination Certificate

active

10501618

ABSTRACT:
Particle separation apparatus comprises a cyclone particle separating means, a particle collecting chamber and a fan driven by an electric motor for drawing particle laden air into and through the apparatus. A valve is provided, upstream of the suction fan driving motor and downstream of the cyclone particle separating means, which includes a valve closure and a valve seat against which the closure is normally resiliently urged to prevent air flowing through the valve. The valve seat is a circular opening and the closure is at least hemispherical with its convex curved surface towards the seating.

REFERENCES:
patent: 2515425 (1950-07-01), Restemeier
patent: 3742975 (1973-07-01), Kazama et al.
patent: 4020525 (1977-05-01), Fromknecht et al.
patent: 4320696 (1982-03-01), Daniels et al.
patent: 5004009 (1991-04-01), Bunce
patent: 5183075 (1993-02-01), Stein
patent: 5201095 (1993-04-01), Choi
patent: 5623958 (1997-04-01), Bumpers
patent: 5960486 (1999-10-01), Huliganga
patent: 6231649 (2001-05-01), Dyson et al.

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