Reciprocating motor

Claim 2

An electric motive device comprising a pair of magnets movable relative to each other, said magnets having pole faces positioned to cause the magnets to repel each other when the pole faces are in proximity with each other, a magnetic core positioned in an air gap between the pole faces, the pole faces of said magnets being movable into and out of proximity with the core, said core being a magnetic shield to cause the magnets to be simultaneously attracted into proximity with it, and means for increasing the magnetic reluctance of the core in response to the magnets being attracted into proximity with the core whereby magnetic fluxes of the pole faces of the magnets interact and the magnets are simultaneously repelled from proximity with the core.

Claim 3

An electric motive device comprising a pair of magnets movable relative to each other, said magnets having pole faces positioned to cause the magnets to repel each other when the pole faces are in proximity with each other, a shuttle movable relative to said magnets in a direction generally at right angles to a direction of movement of the magnets, said shuttle moving into and out of air gap between the pole faces, said shuttle including a magnetic core, said magnets being simultaneously movable into and out of proximity with the core, said core being a magnetic shield to cause the magnets to be attracted to it while the shuttle is in the air gap, means for increasing the magnetic reluctance of the core in response to the magnets being attracted into proximity with the shuttle, whereby the magnetic fluxes of the pole faces of the magnets interact and the magnets are repelled from the shuttle, and means for coupling together the movements of the magnets and shuttle so that the shuttle is withdrawn from the air gap in response to the magnets being drawn adjacent the core.

Claim 4

An electric motive device comprising a pair of magnets movable relative to each other, said magnets having pole faces positioned to cause the magnets to repel each other when the pole faces are in proximity with each other, a shuttle movable relative to said magnets in a direction generally at right angles to a direction of movement of the magnets, said shuttle moving into and out of air gap between the pole faces, said shuttle including a magnetic core, said magnets being simultaneously movable into and out of proximity with the core, said core being a magnetic shield to cause the magnets to be attracted to it while the shuttle is in the air gap, means for increasing the magnetic reluctance of the core in response to the magnets being attracted into proximity with the shuttle, whereby the magnetic fluxes of the pole faces of the magnets interact and the magnets are repelled from the shuttle, and means for coupling together the movements of the magnets and shuttle so that the shuttle is withdrawn from the air gap in response to the magnets being drawn adjacent the core.

Claim 5

An electric motive derive comprising magnet means having first, second, third and fourth pole faces, said first and second pole faces being of like polarity, said third and fourth pole faces being of like polarity, means for mounting the first and second pole faces to be movable relative to each other so that they come into proximity with each other and move away from each other, a first air gap being established by said first and second pole faces, means for mounting the third and fourth pole faces to be movable relative to each other so that they come into proximity with each other and move away from each other, a second air gap being established by said third and fourth pole faces, said first and second pole faces being arranged relative to the third and fourth pole faces so that forces from the first and second pole faces do not interact substantially with forces from the third and fourth pole faces, a shuttle movable between the first and second air gaps, said shuttle including a magnetic core, said pole faces being movable into and out of proximity with the core, said core being a magnetic shield to cause the pole faces to be attracted to it while the shuttle is in the respective air gaps, means for increasing the magnetic reluctance of the core in response to the pole faces associated with the respective air gaps being attracted into proximity with the shuttle, whereby magnetic fluxes of the pole faces of the associated air gap interact and the pole faces of the associated air gap are repelled from the shuttle, and means for synchronizing movement of the pole faces associated with the first air gap with the movement of the pole faces associated with the second air gap and the movement of the shuttle so that the pole faces associated with the first air gap are moving toward each other as the pole faces associated with the second air gap are moving away from each other and the shuttle is withdrawn from the air gaps in response to the pole faces associated with each air gap being drawn adjacent the core.

Claim 6

An electric motive derive comprising magnet means having first, second, third and fourth pole faces, said first and second pole faces being of like polarity, said third and fourth pole faces being of like polarity, means for mounting the first and second pole faces to be movable relative to each other so that they come into proximity with each other and move away from each other, a first air gap being established by said first and second pole faces, means for mounting the third and fourth pole faces to be movable relative to each other so that they come into proximity with each other and move away from each other, a second air gap being established by said third and fourth pole faces, said first and second pole faces being arranged relative to the third and fourth pole faces so that forces from the first and second pole faces do not interact substantially with forces from the third and fourth pole faces, a shuttle movable between the first and second air gaps, said shuttle including a magnetic core, said pole faces being movable into and out of proximity with the core, said core being a magnetic shield to cause the pole faces to be attracted to it while the shuttle is in the respective air gaps, means for increasing the magnetic reluctance of the core in response to the pole faces associated with the respective air gaps being attracted into proximity with the shuttle, whereby magnetic fluxes of the pole faces of the associated air gap interact and the pole faces of the associated air gap are repelled from the shuttle, and means for synchronizing movement of the pole faces associated with the first air gap with the movement of the pole faces associated with the second air gap and the movement of the shuttle so that the pole faces associated with the first air gap are moving toward each other as the pole faces associated with the second air gap are moving away from each other and the shuttle is withdrawn from the air gaps in response to the pole faces associated with each air gap being drawn adjacent the core.

Claim 7

The device of claim 3 wherein the means for increasing the magnetic reluctance of the core includes a winding oN the core, and means for supplying sufficient current to the winding to drive the core into saturation in response to the pole faces associated with the respective air gaps coming into proximity with the core.

Claim 8

The device of claim 4 wherein the means for supplying includes means for feeding current in a first direction to the coil while the shuttle is in the first air gap and means for feeding current in a second direction, opposite from the first direction, while the shuttle is in the second air gap.

Claim 9

The device of claim 3 wherein the means for synchronizing includes spring biased means for affecting movement of the shuttle away from said air gaps.

Claim 10

An electric motive device comprising a first pair of magnets movable relative to each other, a second pair of magnets movable relative to each other in a plane generally parallel to the movement of the first pair of magnets, said first and second pairs of magnets being arranged so that forces from the first pair of magnets do not interact substantially with forces from the second pair of magnets, the magnets of each pair having pole faces positioned to cause the magnets of the respective pair to repel each other when the pole faces of the magnets of the pair are adjacent each other, the pole faces of each magnet being spaced to form an air gap through which magnetic flux flows between the pole faces of each magnet, the magnetic fluxes of each magnet of the first pair flowing in the same direction through the air gaps thereof, the magnetic fluxes of each magnet of the second pair flowing in the same second direction through the air gaps thereof, said first and second directions being opposed to each other, a shuttle movable relative to said magnets in a direction generally at right angles to a direction of movement of the magnets, said shuttle moving into and out of the air gaps between the pole faces of each pair of magnets so that the shuttle is in both air gaps of the first pair of magnets at the same time and out of the air gaps of the second pair of magnets at the same time, said shuttle including a magnetic core and a coil wound on the core, said coil being wound so that a component of magnetic flux derived from it is aligned with a component of magnetic flux in each of the air gaps, said core being a magnetic shield to cause the magnets to be attracted to it while the shuttle is in the air gaps, means for reversing the direction of the magnetic flux derived from the coil in synchronism with movement of the shuttle between the air gaps of the first and second pairs of magnets, and means for coupling together the movements of the magnets and shuttle so that the shuttle is withdrawn from the air gaps as the magnets are being repelled from the core.

Claim 11

An electric motive device comprising a first pair of magnets movable relative to each other, a second pair of magnets movable relative to each other in a plane generally parallel to the movement of the first pair of magnets, said first and second pairs of magnets being arranged so that forces from the first pair of magnets do not interact substantially with forces from the second pair of magnets, the magnets of each pair having pole faces positioned to cause the magnets of the respective pair to repel each other when the pole faces of the magnets of the pair are adjacent each other, the pole faces of each magnet being spaced to form an air gap through which magnetic flux flows between the pole faces of each magnet, the magnetic fluxes of each magnet of the first pair flowing in the same direction through the air gaps thereof, the magnetic fluxes of each magnet of the second pair flowing in the same second direction through the air gaps thereof, said first and second directions being opposed to each other, a shuttle movable relative to said magnets in a direction generally at right angles to a direction of movement of the magnets, said shuttle moving into and out of the air gaps between the pole faces of each pair of magnets so that the shuttle is in both air gaps of the first pair of magnets at the same time and out of the air gaps of the second pair of magnets at the same time, said shuttle including a magnetic core and a coil wound on the core, said coil being wound so that a component of magnetic flux derived from it is aligned with a component of magnetic flux in each of the air gaps, said core being a magnetic shield to cause the magnets to be attracted to it while the shuttle is in the air gaps, means for reversing the direction of the magnetic flux derived from the coil in synchronism with movement of the shuttle between the air gaps of the first and second pairs of magnets, and means for coupling together the movements of the magnets and shuttle so that the shuttle is withdrawn from the air gaps as the magnets are being repelled from the core.

Claim 12

An electric motive device comprising a first pair of magnets movable relative to each other, a second pair of magnets movable relative to each other in a plane generally parallel to the movement of the first pair of magnets, said first and second pairs of magnets being arranged so that forces from the first pair of magnets do not interact substantially with forces from the second pair of magnets, the magnets of each pair having pole faces positioned to cause the magnets of the respective pair to repel each other when the pole faces of the magnets of the pair are adjacent each other, the pole faces of each magnet being spaced to form an air gap through which magnetic flux flows between the pole faces of each magnet, the magnetic fluxes of each magnet of the first pair flowing in the same direction through the air gaps thereof, the magnetic fluxes of each magnet of the second pair flowing in the same second direction through the air gaps thereof, said first and second directions being opposed to each other, a shuttle movable relative to said magnets in a direction generally at right angles to a direction of movement of the magnets, said shuttle moving in a direction generally parallel to the direction of flux flow between the pole faces of the magnets of the first and Second pairs, said shuttle moving from a first position between first like polarity pole faces of magnets of the first pair to a second position between second like polarity pole faces of magnets of the first pair, said first and second polarities being different, said shuttle including a magnetic core and a coil wound on the core, said coil being wound so that a component of magnetic flux derived from it is at right angles to a component of magnetic flux in each of the air gaps, said core being a magnetic shield to cause the magnets to be attracted to it while the shuttle is in the first and second positions, means for reversing the direction of the magnetic flux derived from the coil in synchronism with movement of the shuttle between the first and second positions, and means for coupling together the movements of the magnets and shuttle so that the shuttle is withdrawn from the first and second positions as the magnets are being repelled from the core.

Claim 13

An electric motive device comprising a first pair of magnets movable relative to each other, a second pair of magnets movable relative to each other in a plane generally parallel to the movement of the first pair of magnets, said first and second pairs of magnets being arranged so that forces from the first pair of magnets do not interact substantially with forces from the second pair of magnets, the magnets of each pair having pole faces positioned to cause the magnets of the respective pair to repel each other when the pole faces of the magnets of the pair are adjacent each other, the pole faces of each magnet being spaced to form an air gap through which magnetic flux flows between the pole faces of each magnet, the magnetic fluxes of each magnet of the first pair flowing in the same direction through the air gaps thereof, the magnetic fluxes of each magnet of the second pair flowing in the same second direction through the air gaps thereof, said first and second directions being opposed to each other, a shuttle movable relative to said magnets in a direction generally at right angles to a direction of movement of the magnets, said shuttle moving in a direction generally parallel to the direction of flux flow between the pole faces of the magnets of the first and Second pairs, said shuttle moving from a first position between first like polarity pole faces of magnets of the first pair to a second position between second like polarity pole faces of magnets of the first pair, said first and second polarities being different, said shuttle including a magnetic core and a coil wound on the core, said coil being wound so that a component of magnetic flux derived from it is at right angles to a component of magnetic flux in each of the air gaps, said core being a magnetic shield to cause the magnets to be attracted to it while the shuttle is in the first and second positions, means for reversing the direction of the magnetic flux derived from the coil in synchronism with movement of the shuttle between the first and second positions, and means for coupling together the movements of the magnets and shuttle so that the shuttle is withdrawn from the first and second positions as the magnets are being repelled from the core.

Claim 14

An electric motive device comprising a pair of magnets movable relative to each other, said magnets having pole faces positioned to cause the magnets to repel each other when the pole faces are in proximity with each other, a shuttle movable relative to said magnets in a direction generally at right angles to a direction of movement of the magnets, said shuttle moving into and out of air gap between the pole faces, said shuttle including a magnetic core, said magnets being simultaneously movable into and out of proximity with the core, said core being a magnetic shield to cause the magnets to be attracted to it while the shuttle is in the air gap, a coil on the core, means supplying current to the coil for forming an electromagnet having pole faces that cause repulsion of the shuttle from the magnets in response to movement of the magnets into proximity with the core.

Claim 15

An electric motive device comprising a pair of magnets movable relative to each other, said magnets having pole faces positioned to cause the magnets to repel each other when the pole faces are in proximity with each other, a shuttle movable relative to said magnets in a direction generally at right angles to a direction of movement of the magnets, said shuttle moving into and out of air gap between the pole faces, said shuttle including a magnetic core, said magnets being simultaneously movable into and out of proximity with the core, said core being a magnetic shield to cause the magnets to be attracted to it while the shuttle is in the air gap, a coil on the core, means supplying current to the coil for forming an electromagnet having pole faces that cause repulsion of the shuttle from the magnets in response to movement of the magnets into proximity with the core.

Claim 16

An electric motive device comprising magnet means having first, second, third and fourth pole faces, said first and second pole faces being of like polarity, said third and fourth pole faces being of like polarity, means for mounting the first and second pole faces to be movable relative to each other so that they come into proximity with each other and move away from each other, a first air gap being established by said first and second pole faces, means for mounting the third and fourth pole faces to be movable relative to each other so that they come into proximity with each other and move away from each other, a second air gap being established by said third and fourth pole faces, said first and second pole faces being arranged relative to the third and fourth pole faces so that forces from the first and second pole faces do not interact substantially with forces from the third and fourth pole faces, a shuttle movable between the first and second air gaps, said shuttle including a magnetic core, said pole faces being movable into and out of proximity with the core, said core being a magnetic shield to cause the pole faces to be attracted to it while the shuttle is in the respective air gaps, a coil on the core, means supplying current to the coil forming opposite polarity electromagnets having pole faces that cause repulsion of the shuttle from the first air gap toward the second air gap in response to the first and second pole faces coming into proximity with the core and that cause repulsion of the shuttle from the second air gap toward the first air gap in response to the third and fourth pole faces coming into proximity with the core.

Claim 17

An electric motive device comprising magnet means having first, second, third and fourth pole faces, said first and second pole faces being of like polarity, said third and fourth pole faces being of like polarity, means for mounting the first and second pole faces to be movable relative to each other so that they come into proximity with each other and move away from each other, a first air gap being established by said first and second pole faces, means for mounting the third and fourth pole faces to be movable relative to each other so that they come into proximity with each other and move away from each other, a second air gap being established by said third and fourth pole faces, said first and second pole faces being arranged relative to the third and fourth pole faces so that forces from the first and second pole faces do not interact substantially with forces from the third and fourth pole faces, a shuttle movable between the first and second air gaps, said shuttle including a magnetic core, said pole faces being movable into and out of proximity with the core, said core being a magnetic shield to cause the pole faces to be attracted to it while the shuttle is in the respective air gaps, a coil on the core, means supplying current to the coil forming opposite polarity electromagnets having pole faces that cause repulsion of the shuttle from the first air gap toward the second air gap in response to the first and second pole faces coming into proximity with the core and that cause repulsion of the shuttle from the second air gap toward the first air gap in response to the third and fourth pole faces coming into proximity with the core.

Claim 18

An electric motive device comprising a first pair of magnets movable relative to each other, a second pair of magnets movable relative to each other in a plane generally parallel to the movement of the first pair of magnets, said first and second pairs of magnets being arranged so that forces from the first pair of magnets do not interact substantially with forces from the second pair of magnets, the magnets of each pair having pole faces positioned to cause the magnets of the respective pair to repel Each other when the pole faces of the magnets of the pair are adjacent each other, the pole faces of each magnet being spaced to form an air gap through which magnetic flux flows between the pole faces of each magnet, the magnetic fluxes of each magnet of the first pair flowing in the same first direction through the air gaps thereof, the magnetic fluxes of each magnet of the second pair flowing in the same second direction through the air gaps thereof, said first and second directions being opposed to each other, a shuttle movable relative to said magnets in a direction generally at right angles to a direction of movement of the magnets, said shuttle moving into and out of the air gaps between the pole faces of each pair of magnets so that the shuttle is in both air gaps of the first pair of magnets at the same time and out of the air gaps of the second pair of magnets at the same time, said shuttle including a magnetic core and a coil wound on the core, said coil being wound so that there can be established in the shuttle electromagnets having pole faces repelling the pole faces forming the air gaps, said core being a magnetic shield to cause the magnets to be attracted to it while the shuttle is in the air gaps, means for reversing the direction of the magnetic flux derived from the coil in synchronism with movement of the shuttle between the air gaps of the first and second pairs of magnets.

Claim 19

An electric motive device comprising a first pair of magnets movable relative to each other, a second pair of magnets movable relative to each other in a plane generally parallel to the movement of the first pair of magnets, said first and second pairs of magnets being arranged so that forces from the first pair of magnets do not interact substantially with forces from the second pair of magnets, the magnets of each pair having pole faces positioned to cause the magnets of the respective pair to repel Each other when the pole faces of the magnets of the pair are adjacent each other, the pole faces of each magnet being spaced to form an air gap through which magnetic flux flows between the pole faces of each magnet, the magnetic fluxes of each magnet of the first pair flowing in the same first direction through the air gaps thereof, the magnetic fluxes of each magnet of the second pair flowing in the same second direction through the air gaps thereof, said first and second directions being opposed to each other, a shuttle movable relative to said magnets in a direction generally at right angles to a direction of movement of the magnets, said shuttle moving into and out of the air gaps between the pole faces of each pair of magnets so that the shuttle is in both air gaps of the first pair of magnets at the same time and out of the air gaps of the second pair of magnets at the same time, said shuttle including a magnetic core and a coil wound on the core, said coil being wound so that there can be established in the shuttle electromagnets having pole faces repelling the pole faces forming the air gaps, said core being a magnetic shield to cause the magnets to be attracted to it while the shuttle is in the air gaps, means for reversing the direction of the magnetic flux derived from the coil in synchronism with movement of the shuttle between the air gaps of the first and second pairs of magnets.