Magnetic motor with temperature related activation
AssigneeNartron Corporation
InventorsMarty M. Zoerner, Stephen R. W. Cooper
Life of this patent
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Abstract
A magnetic motor is shown having magnetic members situated in relatively close proximity to each other; relative movement between the magnetic members is brought about by bringing the temperature of at least one of the magnetic members to the curie temperature thereof, and subsequent relative movement between the magnetic members is brought about by having the temperatures of all of the magnet members less than the curie temperatures thereof.
Claims68
A magnetic motor, comprising a ferrite, a permanent magnet situated as to be at least relatively close to said ferrite, wherein said permanent magnet is held relatively stationary while said ferrite is permitted to move, wherein said ferrite and said permanent magnet are magnetically attracted toward each other, wherein said ferrite has a curie temperature of preselected magnitude, wherein when said ferrite is at a temperature equal to or greater than said curie temperture said ferrite loses its magnetic properties, wherein upon said ferrite losing its magnetic properties said ferrite is enabled to move away from said permanent magnet, and wherein when the temperature of said ferrite becomes less than said curie temperature said ferrite regains its magnetic properties and said ferrite is urged to move toward said permanent magnet.
A magnetic motor, comprising a first member having magnetic properties, a second member having magnetic properties in at least relatively close proximity to said first member and magnetically attracted to said first member, an output member wherein said first member is fixed against movement, wherein at a preselected elevated temperature the strength of said magnetic attraction is at least substantially diminished and said second member is enabled to move away from said first member and causes said output member to be moved by said second member, and further comprising first electrical contact means and second electrical contact means, wherein said first electrical contact means is operatively connected to said second member for movement therewith, wherein at a temperature less than said preselected elevated temperature said first electrical contact means are spaced from said second electrical contact means, and wherein when at a temperature equal to or greater than said preselected elevated temperature said second member is moved away from said first member and moves to where said first electrical contact means is closed against said second electrical contact means to thereby close an electrical circuit therethrough.
A magnetic motor, comprising a first member having magnetic properties, a second member having magnetic properties in at least relatively close proximity to said first member and magnetically attracted to said first member, an output member wherein said first member is fixed against movement, wherein at a preselected elevated temperature the strength of said magnetic attraction is at least substantially diminished and said second member is enabled to move away from said first member and causes said output member to be moved by said second member, wherein said first member comprises a ferrite, and wherein said second member comprises a permanent magnet.
A magnetic motor, comprising a permanent magnet creating a magnetic field, a first ferrite situated in at least relatively close proximity to said permanent magnet and attracted by said magnetic field, a second ferrite situated in at least relatively close proximity to said first ferrite as to place said first ferrite generally between said permanent magnet and said second ferrite, wherein said second ferrite is attracted by said magnetic field, wherein said first ferrite has a curie temperature of a first magnitude, wherein said second ferrite has a curie temperature of a second magnitude, wherein said curie temperature of said first magnitude is less in magnitude than said curie temperature of said second magnitude, wherein when said first ferrite is at said curie temperature of a first magnitude said first ferrite ceases to be attracted by said magnetic field, wherein when said first ferrite is at said curie temperature of a first magnitude and said second ferrite is at a temperature less than said curie temperature of a second magnitude said second ferrite prevents said first ferrite from moving away from said permanent magnet, and wherein when said first ferrite is at a temperature equal to or greater than said curie temperature of a first magnitude and said second ferrite is at a temperature at least equal to said curie temperature of a second magnitude both said first and second ferrites are enabled to move away from said permanent magnet.
A safety lock for a stove having a main structure and comprising an oven and an oven door openable for access to said oven, and further comprising a latch portion carried by said door, a latching apparatus carried by said main structure, wherein said latching apparatus comprises a plurality of latching members at least one of which is relatively movable, a passage segment formed in each of said latching members, wherein said latching members are effective to cooperatively hold said latch portion when said oven door is closed, wherein when said latch portion is held by said latching members said passage segments become operatively aligned with each other as to thereby create a continuous passage, and a locking member adapted to be received in said continuous passage to preclude said latching members releasing said latch portion when the temperature of said oven is at a magnitude considered unsafe to have said oven door become opened, and further comprising a ferrite, a permanent magnet situated as to be at least relatively close to said ferrite, wherein said ferrite is held relatively stationary while said permanent magnet is permitted to move, wherein said ferrite and said permanent magnet are magnetically attracted to each other, said locking member being positioned in accordance with the position of said permanent magnet, wherein said ferrite has a curie temperature, wherein when said ferrite is at a temperature equal to or greater than said curie temperature said ferrite loses its magnetic properties, wherein upon said ferrite losing its magnetic properties said permanent magnet moves away from said ferrite and in so doing causes said locking member to be placed into said continuous passage, and wherein the temperature of said ferrite is equal to or greater than said curie temperature during periods when the temperature of said oven is at said unsafe magnitude.
A magnetic motor, comprising a ferrite, a permanent magnet situated as to be at least relatively close to said ferrite, wherein said ferrite is held relatively stationary while said permanent magnet is permitted to move, wherein said ferrite and said permanent magnet are magnetically attracted toward each other, wherein said ferrite has a curie temperature, wherein when said ferrite is at a temperature equal to or greater than said curie temperature said ferrite loses its magnetic properties, wherein upon said ferrite losing its magnetic properties said permanent magnet is enabled to move away from said ferrite, and wherein when the temperature of said ferrite becomes less than said curie temperature said ferrite again becomes vested with its magnetic properties and said permanent magnet is urged to move toward said ferrite.
A magnetic motor, comprising a permanent magnet creating a magnetic field, a ferrite situated in at least relatively close proximity to said permanent magnet and being magnetically attracted to said permanent magnet, said ferrite becoming able to move away from said permanent magnet and to a position remote to said permanent magnet when said ferrite is at a temperature that is equal to or greater than a curie temperature of a first magnitude of temperature, and said ferrite becoming able to move away from said remote position and toward said permanent magnet when said ferrite is at less than a curie temperature of a second magnitude of temperature, and wherein said second magnitude of temperature is less in magnitude than said first magnitude of temperature.
Dependencies are inferred from the claim text.