US5821728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Armature induction charging of moving electric vehicle batteries
Assignee: TOLLISON STANLEY A
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Filing: 1996-07-22
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Granted: 1998-10-13
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Expires: 2016-07-22
Abstract
Abstract Batteries of a moving electric vehicle are charged using an electromagnetic field extended along the centerline of a driving lane and a level controlled armature mounted on the underside of an electric vehicle by having the moving coils of the armature lowered to optimum proximity of the magnetic field as the moving vehicle straddles and traveress over the magnetic field. Current will be induced into the armature coils by the relative motion between the armature coils and the primary inductive coils. For billing purposes a vehicle is identified and timed as it enters and leaves the charging lane by means of a vehicle mounted bar code and scanners located at the entrance and exit of the charging lane. The billing information is relayed to a data storage and process center.
Inventors
- 👤 John P. Schwind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:59
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M10/44; B; B60; B60L; B60L53/00; B60L53/10; B60L53/12; B60L53/124; B60L53/126; B60L53/30; B60L53/35; B60L53/38; B60L53/39; H02; H02J; H02J50/00; H02J50/10; H02J50/40; H02J50/60; H02J50/80; H02J50/90; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02T; Y02T10/00; Y02T10/60; Y02T10/70; Y02T10/7072; Y02T90/00; Y02T90/10; Y02T90/12; Y02T90/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
247 words
An apparatus for charging batteries of a moving electric vehicle comprising: (A) an electromagnetic strip means for producing a magnetic field along a centerline of a roadway, comprising a series of inductive coils, power supply line, switches, and sensors; (B) an armature and armature drive motor servo mechanism for transducing the magnetomotive force of said magnetic field to electromotive force, producing electric current for charging said batteries; (C) a level controller and level controller servo mechanism means for positioning said armature in optimum proximity to said magnetic field wherein (C1) the level controller including a road hazard protection means comprising: (C1-1) an armature mounting plate; (C1-2) lowering arms means for manipulating the mounting plate; (C1-3) a level control arm and a level control arm shield; a shock absorber means for connecting said level control arm to said lowering arms means for protecting the armature mounting plate and the armature from said hazards (C1-4) a worm gear means for operating the lowering arms means; (C2) the level controller servo mechanism comprising: (C2-1) a magnetic field intensity sensor, a potentiometer, and a reversible servo motor for driving said worm gear means for maintaining optimum proximity of said armature to said magnetic field; (D) a ratchetted safety release hub means for emergency disengagement of said worm gear means from a servo motor shaft; (E) an antimagnetic shield means for protection of electric vehicle passengers and electronic equipment; (F) means for identifying, timing and billing said vehicle for battery charging service.
Claim 2
Independent Claim
247 words
An apparatus for charging batteries of a moving electric vehicle comprising: (A) an electromagnetic strip means for producing a magnetic field along a centerline of a roadway, comprising a series of inductive coils, power supply line, switches, and sensors; (B) an armature and armature drive motor servo mechanism for transducing the magnetomotive force of said magnetic field to electromotive force, producing electric current for charging said batteries; (C) a level controller and level controller servo mechanism means for positioning said armature in optimum proximity to said magnetic field wherein (C1) the level controller including a road hazard protection means comprising: (C1-1) an armature mounting plate; (C1-2) lowering arms means for manipulating the mounting plate; (C1-3) a level control arm and a level control arm shield; a shock absorber means for connecting said level control arm to said lowering arms means for protecting the armature mounting plate and the armature from said hazards (C1-4) a worm gear means for operating the lowering arms means; (C2) the level controller servo mechanism comprising: (C2-1) a magnetic field intensity sensor, a potentiometer, and a reversible servo motor for driving said worm gear means for maintaining optimum proximity of said armature to said magnetic field; (D) a ratchetted safety release hub means for emergency disengagement of said worm gear means from a servo motor shaft; (E) an antimagnetic shield means for protection of electric vehicle passengers and electronic equipment; (F) means for identifying, timing and billing said vehicle for battery charging service.
Claim 3
Dependent Claim
55 words
The apparatus for charging batteries of a moving electric vehicle as described in claim 1 wherein said means for identifying, timing and billing said electric vehicle is provided comprising: a vehicle mounted bar code; entrance and exit scanners; data storage and process center; and means for transmitting information from said scanners to said data center.
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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) | 2001-10-12 | 2002-04-13 | 2002-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-10-12 | 2006-04-13 | 2006-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-10-12 | 2010-04-13 | 2010-10-13 | $7700.00 | Window Closed / Lapsed |