Valves and valve actuation – Fluid actuated or retarded – Piston type expansible chamber reciprocating valve actuator
Reexamination Certificate
2006-02-28
2006-02-28
Walczak, David J. (Department: 3751)
Valves and valve actuation
Fluid actuated or retarded
Piston type expansible chamber reciprocating valve actuator
Reexamination Certificate
active
07004446
ABSTRACT:
A dual-magnet valve unit having a first master magnet ring assembly with an outer casing slidably contained within an outer housing that forms a chamber with the casing of the master magnet ring assembly and a second, slave magnet disk assembly with an outer tube and a poppet member in the form of a cone and displaceable within the inner transport fluid conduit, the inner transport fluid conduit having a valve seat contactable by the cone of the poppet member to block fluid flow through the fluid conduit in one position of the slave magnet disk assembly and displaceable from the cone to pass fluid flow through the fluid conduit in an opposite position of the slave magnet disk assembly, the master magnet ring assembly being displaced by selective supply of a motive fluid to the chamber to displace the master magnet ring assembly from one position to another, which automatically displaces the slave magnet ring assembly.
REFERENCES:
patent: 3212751 (1965-10-01), Hassa
patent: 3273091 (1966-09-01), Wales, Jr.
patent: 3950719 (1976-04-01), Maxwell
patent: 4403765 (1983-09-01), Fisher
patent: 4489297 (1984-12-01), Haydon et al.
patent: 4637427 (1987-01-01), Nolan et al.
patent: 4851800 (1989-07-01), Peterson et al.
patent: 4940207 (1990-07-01), Katsuyama
patent: 5320136 (1994-06-01), Morris et al.
patent: 5434549 (1995-07-01), Hirabayashi et al.
patent: 6501357 (2002-12-01), Petro
patent: 0436214 (1991-07-01), None
patent: 2689201 (1993-01-01), None
patent: 03177673 (1991-08-01), None
Burch Donald
Mayer Jeremy F.
Petro John P.
Peterson Richard Esty
Walczak David J.
LandOfFree
Bistable dual-magnet valve unit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bistable dual-magnet valve unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bistable dual-magnet valve unit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3656389