US4247785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Freeway power generator
Assignee: Individual
•
Filing: 1979-11-23
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Granted: 1981-01-27
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Expires: 1999-11-23
Abstract
Abstract A series of magnetized cylindrical rollers are rotatably mounted in spaced transverse channels under a freeway off ramp. Each roller is made of non-magnetic material and has plurality of cavities around its rim in which arcuate bar magnets are mounted. The bar magnets are arranged with like poles adjacent each other to produce magnetic spokes which penetrate the off ramp and extend into the space traversed by vehicles travelling along the off ramp. Motion of the vehicles induces rotation of the magnetic rollers by magnetic interaction with the magnetic spokes. Electrical generators are coupled to the rollers to change their rotary motion into electrical energy.
Inventors
- 👤 James W. Apgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:17
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/18; H02K7/1807; H02K7/1853; H02K49/00; H02K49/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
115 words
A power generator for converting the motion of vehicles over a road into useful energy comprising: at least one transverse channel under said road extending across at least one lane of said road; a magnetized rotary device in said channel, said magnetized rotary device being positioned with its rotary axis transverse to the road and extending across at least one lane of said road; and energy transducer means coupled to said magnetized rotary device for changing its rotational energy into a form of energy that can be transmitted to locations that are remote from said road, whereby the motion of vehicles over said magnetized rotary device causes it to rotate and to generate useful energy.
Claim 2
Dependent Claim
115 words
A power generator for converting the motion of vehicles over a road into useful energy comprising: at least one transverse channel under said road extending across at least one lane of said road; a magnetized rotary device in said channel, said magnetized rotary device being positioned with its rotary axis transverse to the road and extending across at least one lane of said road; and energy transducer means coupled to said magnetized rotary device for changing its rotational energy into a form of energy that can be transmitted to locations that are remote from said road, whereby the motion of vehicles over said magnetized rotary device causes it to rotate and to generate useful energy.
Claim 3
Dependent Claim
16 words
A power generator defined in claim 1 wherein said energy transducer means is an electrical generator.
Claim 4
Dependent Claim
44 words
The power generator defined in claim 1 wherein said magnetized rotary device is a cylindrical roller made of non-magnetic material, there being a plurality of arcuate cavities in the rim of said cylindrical roller, and a plurality of arcuate bar magnets in said cavities.
Claim 5
Dependent Claim
34 words
The power generator defined in claim 3 wherein said arcuate bar magnets are arranged with like poles adjacent to each other to create spokes of magnetic flux which extend outwardly from said cylindrical roller.
Claim 6
Dependent Claim
33 words
The power generator defined in claim 4 wherein there is an even number of arcuate bar magnets on said cylindrical roller so that every magnetic pole will be adjacent to like magnetic poles.
Claim 7
Dependent Claim
107 words
A freeway off ramp power generator comprising: a plurality of transverse channels under said off ramp, each of said channels extending transversely completely across said off ramp; a magnetized rotary device in each channel, said magnetized rotary device being positioned with its rotary axis transverse to the off ramp and extending completely across the off ramp; and energy transducer means coupled to each magnetized rotary device for changing its rotational energy into a form of energy that can be transmitted to locations that are remote from said off ramp, whereby the motion of vehicles over each magnetized rotary device causes it to rotate to generate useful energy.
Claim 8
Dependent Claim
107 words
A freeway off ramp power generator comprising: a plurality of transverse channels under said off ramp, each of said channels extending transversely completely across said off ramp; a magnetized rotary device in each channel, said magnetized rotary device being positioned with its rotary axis transverse to the off ramp and extending completely across the off ramp; and energy transducer means coupled to each magnetized rotary device for changing its rotational energy into a form of energy that can be transmitted to locations that are remote from said off ramp, whereby the motion of vehicles over each magnetized rotary device causes it to rotate to generate useful energy.
Claim 9
Dependent Claim
97 words
The power generator defined in claim 6 wherein each of said magnetized rotary devices is a cylindrical roller made of non-magnetic material, there being a plurality of arcuate cavities in the rim of said cylindrical roller, and a plurality of arcuate bar magnets in said cavities, and the dimension of each of said rollers being different, the smallest of said rollers being positioned near the entrance to the off ramp and the largest being positioned at the exit of the off ramp and the sizes of the rollers being progressively larger from the smallest to the largest.
Claim 10
Dependent Claim
15 words
The power generator defined in claim 6 whereby each energy transducer is an electrical generator.
Claim 11
Dependent Claim
34 words
The power generator defined in claim 7 wherein said arcuate bar magnets are arranged with like poles adjacent to each other to create spokes of magnetic flux which extend outwardly from each cylindrical roller.
Claim 12
Dependent Claim
33 words
The power generator defined in claim 9 wherein there is an even number of arcuate bar magnets on each cylindrical roller so that every magnetic pole will be adjacent to like magnetic poles.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-27 | 1984-07-28 | 1985-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-27 | 1988-07-28 | 1989-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-27 | 1992-07-28 | 1993-01-27 | $7700.00 | Window Closed / Lapsed |