US3697908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ferromagnetic material in a magnetic field as a propulsion system
Assignee: PHILLIP E HIGHSMITH
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Filing: 1969-12-22
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Granted: 1972-10-10
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Expires: 1989-12-22
Abstract
Abstract A method and apparatus are disclosed for propelling a ferromagnetic containing vehicle along a predetermined path. A current carrying coil is provided around at least a portion of the predetermined path of travel of the vehicle. A magnetic field is created within the coil which produces a magnetic force on the ferromagnetic material containing vehicle passing therethrough. By continuously moving the magnetic field along the length of the coil, the vehicle responds in movement to the direction of movement of the magnetic field.
Inventors
- 👤 Phillip E Highsmith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:29
CPC Classifications
H; H02; H02K; H02K41/00; H02K41/02; H02K41/03; H02K41/031
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
67 words
A method of propelling a ferromagnetic material containing vehicle along a predetermined path comprising: a. providing a coil around at least a portion of the path of travel; b. creating a magnetic field in the coil to produce a magnetic force on said vehicle; and c. continuously moving said magnetic field along said coil, whereby said vehicle responds in the direction of movement of said magnetic field.
Claim 2
Independent Claim
67 words
A method of propelling a ferromagnetic material containing vehicle along a predetermined path comprising: a. providing a coil around at least a portion of the path of travel; b. creating a magnetic field in the coil to produce a magnetic force on said vehicle; and c. continuously moving said magnetic field along said coil, whereby said vehicle responds in the direction of movement of said magnetic field.
Claim 3
Dependent Claim
26 words
A method of propelling a magnetic material containing vehicle along a predetermined path as defined in claim 1 wherein said vehicle is supported on a track.
Claim 4
Dependent Claim
29 words
A method of propelling a magnetic material containing vehicle as defined in claim 1 wherein a source of current for creating said magnetic field is contained within the vehicle.
Claim 5
Dependent Claim
41 words
A method of propelling a ferromagnetic material containing vehicle as defined in claim 1 wherein a source of current for creating a magnetic field in the coil is external of the vehicle, the current passing through said vehicle into said coil.
Claim 6
Dependent Claim
26 words
A method of propelling a ferromagnetic material containing vehicle as defined in claim 1 wherein contacts are provided on said vehicle for moving said magnetic field.
Claim 7
Dependent Claim
28 words
A method of propelling a ferromagnetic material containing vehicle as defined in claim 5 wherein said contacts are variable with respect to the magnetic center of said vehicle.
Claim 8
Dependent Claim
92 words
A magnetic propulsion apparatus comprising: a. a current carrying coil, said coil defining at least a portion of a path of intended travel of a vehicle; b. a current source for creating a magnetic field within said coil; and c. a vehicle movably receivable in said coil to pass therethrough, said vehicle containing at least in part a ferromagnetic material, said vehicle further having received thereon means To constantly vary current flow into said coil whereby a magnetic field produced in said coil is constantly moved during passage of said vehicle therethrough.
Claim 9
Dependent Claim
92 words
A magnetic propulsion apparatus comprising: a. a current carrying coil, said coil defining at least a portion of a path of intended travel of a vehicle; b. a current source for creating a magnetic field within said coil; and c. a vehicle movably receivable in said coil to pass therethrough, said vehicle containing at least in part a ferromagnetic material, said vehicle further having received thereon means To constantly vary current flow into said coil whereby a magnetic field produced in said coil is constantly moved during passage of said vehicle therethrough.
Claim 10
Dependent Claim
23 words
A magnetic propulsion apparatus as defined in claim 7 wherein the current varying means comprise at least one contact received on said vehicle.
Claim 11
Dependent Claim
38 words
A magnetic propulsion apparatus as defined in claim 7 wherein said vehicle has received thereon two contacts, at least one of which passes current into the coil and the other of which takes current out of said coil.
Claim 12
Dependent Claim
23 words
A magnetic propulsion apparatus as defined in claim 9 wherein the contacts are variable with respect to the magnetic center of said vehicle.
Claim 13
Dependent Claim
41 words
A magnetic propulsion apparatus as defined in claim 7 comprising further a track for supporting said vehicle, said current source being operatively associated with said track so as to supply current through said vehicle to a selected portion of said coil.
Claim 14
Dependent Claim
19 words
A magnetic propulsion apparatus as defined in claim 7 wherein said current source is positioned internally of said vehicle.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |