US4786240A — Pumping apparatus with an electromagnet affixed t…

Claim 1

Independent Claim 189 words

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.

Claim 2

Dependent Claim 189 words

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.

Claim 3

Dependent Claim 19 words

Apparatus according to claim 1, wherein said inlet ports are of a greater cross-sectional area than said outlet ports.

Claim 4

Dependent Claim 22 words

Apparatus according to claim 2, wherein said ports are cylindrical, said inlet ports being of a greater diameter than said outlet ports.

Claim 5

Dependent Claim 29 words

Apparatus according to claim 1, wherein end walls are located at the axial extremity of said housing, said outlet ports having inner walls smoothly merging with said end walls.

Claim 6

Dependent Claim 30 words

Apparatus according to claim 4, wherein said inlet ports have inner walls which smoothly merge with said end walls of said housing, whereby the incidence of fluid turbulence is minimized.

Claim 7

Dependent Claim 32 words

Apparatus according to claim 1, wherein the dimension of said electromagnetic means radially of said housing means is less than the dimension of said permanent magnet means radially of said housing means.

Claim 8

Dependent Claim 32 words

Apparatus according to claim 6, wherein said electromagnetic means includes a coil and said permanent magnet means are cylindrical, said coil of said electromagnetic means and said permanent magnet means being concentric.

Claim 9

Dependent Claim 26 words

Apparatus according to claim 7, wherein the outside diameter of said coil of said electromagnetic means is less than the diameter of said permanent magnet means.

Claim 10

Dependent Claim 23 words

Apparatus according to claim 1, wherein said means for selectively energizing said electromagnetic means effects alternating reversals of polarity of said electromagnetic means.

Claim 11

Dependent Claim 37 words

Apparatus according to claim 9, wherein said electromagnetic means includes coil means and said means for selectively energizing said electromagnetic means includes a controller which selectively reverses the direction of flow of current in said coil means.

Claim 12

Dependent Claim 23 words

Apparatus according to claim 10, wherein said controller means provides electrical current of variable amplitude, duration, and repetition rates over selected value ranges.

Claim 13

Dependent Claim 17 words

Apparatus according to claim 1, wherein said permanent magnet means have the like poles thereof in opposition.

Claim 14

Dependent Claim 31 words

Apparatus according to claim 12, wherein said electromagnetic means includes coil means electromagnetically energized to alternately establish repelling forces with each of said permanent magnet means when in close proximity thereto.

Claim 15

Dependent Claim 13 words

Apparatus according to claim 1, wherein said septum means is a rolling diaphragm.

Claim 16

Dependent Claim 36 words

Apparatus according to claim 14, wherein said diaphragm has peripheral flange means for sealing attachment to said housing, a centrally located pusher plate, and a convolution wall interposed between said flange means and said pusher plate.

Claim 17

Dependent Claim 18 words

Apparatus according to claim 15, wherein said electromagnetic means is positioned within said pusher plate of said diaphragm.

Claim 18

Dependent Claim 18 words

Apparatus according to claim 16, wherein said electromagnetic means includes a core having windings of magnetic wire thereon.

Claim 19

Dependent Claim 38 words

Apparatus according to claim 1, wherein said septum means interfits within said housing such as to discharge substantially all of the fluid to one side of said septum means upon movement to effect the egress of fluid therefrom.

Claim 20

Dependent Claim 169 words

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.

Claim 21

Dependent Claim 169 words

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.

Claim 22

Dependent Claim 35 words

Apparatus according to claim 19, wherein said means for selectively energizing said electromagnet means alternately energizes the electromagnetic means affixed to said first diaphragm means and the electromagnetic means affixed to said second diaphragm means.

Claim 23

Dependent Claim 16 words

Apparatus according to claim 19, wherein said housing has spacer means interposed between said diaphragm means.

Claim 24

Dependent Claim 33 words

Apparatus according to claim 21, wherein said spacer means is an annular member interposed between and spacing axially of said housing where said first and second diaphragm means are attached to said housing.

Claim 25

Dependent Claim 29 words

Apparatus according to claim 19, including compliance chamber means communicating with a compartment formed between said first and second diaphragm means to preclude substantial variations of air pressure therein.

Claim 26

Dependent Claim 20 words

Apparatus according to claim 23 wherein said compliance chamber means is formed in spacer means interposed between said diaphragm means.

Claim 27

Dependent Claim 46 words

Apparatus according to claim 24 wherein said spacer means has aperture means mounting membrane means to permit the free flow of air into and out of said compartment between said first and second diaphragm means to provide independent operation of said first and second diaphragm means.

Claim 28

Dependent Claim 25 words

Apparatus according to claim 19 wherein said electromagnetic means affixed to each of said diaphragm means are positioned between said first and second diaphragm means.

Claim 29

Dependent Claim 17 words

Apparatus according to claim 19, wherein said means for selectively energizing said electromagnetic means is a controller.

Claim 30

Dependent Claim 159 words

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.

Claim 31

Dependent Claim 159 words

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.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1991-11-22	1992-05-23	1992-11-22	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1995-11-22	1996-05-23	1996-11-22	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1999-11-22	2000-05-23	2000-11-22	$7700.00	Window Closed / Lapsed

Pumping apparatus with an electromagnet affixed to the septum

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