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US 4,786,240 AGranted
Pumping apparatus with an electromagnet affixed to the septum
AssigneeApplied Biotechnologies, Inc.
InventorsMichael V. Koroly, Nathan Ida
Life of this patent
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AssigneeApplied Biotechnologies, Inc.
InventorsMichael V. Koroly, Nathan Ida
Estimating the term…
Pump apparatus (10; 110) for the controlled ingress and egress of a fluid comprising, a generally cylindrical housing (11; 111), flexible septum (55; 155) disposed within the housing and attached to the housing substantially axially medially thereof, an electromagnet assembly (65; 165, 165') affixed to the septum, a pair of inlet ports (25, 25; 125, 125) in the housing with one disposed to either side of the septum, valves (35; 135) in the inlet ports permitting only ingress of fluid to said housing, a pair of outlet ports (26, 26; 126, 126) in the housing with one disposed to either side of the septum, valves (35; 135) in the outlet ports permitting only the egress of fluid from the housing, permanent magnets (45, 46; 145, 146) disposed proximate the axial extremities of the housing, and a controller (70; 170) for selectively energizing the electromagnet assembly for the controlled displacement of the septum axially of the housing to alternately effect the ingress and egress of fluid from the inlet and outlet ports to either side of the septum.
Pump apparatus for the controlled ingress and egress of a fluid comprising, a generally cylindrical rigid housing, flexible septum means disposed within said housing, flexible septum means disposed within said housing and attached to said housing substantially axially medially thereof, electromagnetic means affixed to said septum means, a pair of inlet ports in said housing means with one disposed to either side of said septum means, valve means in said inlet port means permitting only ingress of fluid to said housing, a pair of outlet ports in said housing means with one disposed to either side of said septum means, valve means in said outlet port means permitting only the egress of fluid from said housing, a pair of permanent magnet means with one disposed proximate each of the axial extremities of said housing, and means for selectively energizing said electromagnetic means for flux coupling with each of said pair of permanent magnet means to produce the controlled displacement of said septum means axially of said housing to alternately effect the ingress and egress of fluid from said inlet and outlet ports to either side of said septum means.
Pump apparatus for the controlled ingress and egress of a fluid comprising, a generally cylindrical hollow housing, septum means having first and second diaphragm means disposed within and attached to said housing, electromagnetic means affixed to each of said diaphragm means, a pair of inlet ports in said housing means with one disposed to either side of said septum means, valve means in said inlet port means permitting only ingress of fluid to said housing, a pair of outlet ports in said housing means with one disposed to either side of said septum means, valve means in said outlet port means permitting only the egress of fluid from said housing, a pair of permanent magnet means disposed in said housing axially outwardly of said ports, and means for selectively energizing said electromagnetic means for the controlled displacement of said diaphragm means axially of said housing to alternately permit the ingress and effect the egress of fluid from said inlet and outlet ports to either side of said septum means.
Pump apparatus for the controlled ingress and egress of a fluid comprising, a generally cylindrical rigid housing, flexible septum means disposed within and attached to said housing, electromagnetic means affixed to said septum means, inlet port means in said housing means disposed to one side of said septum means, valve means in said inlet port means permitting only ingress of fluid to said housing, outlet port means in said housing means disposed to the same side of said septum means, valve means in said outlet port means permitting only the egress of fluid from said housing, a pair of permanent magnet means attached to said housing axially outwardly of said ports, and means for selectively energizing said electromagnetic means for flux coupling with each of said pair of permanent magnet means to produce the controlled displacement of said septum means axially of said housing to alternately effect the ingress and egress of fluid from said inlet and outlet ports.
Dependencies are inferred from the claim text.