US5398397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing an electric vehicle
Assignee: AO Smith Corp
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Filing: 1993-08-04
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Granted: 1995-03-21
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Expires: 2013-08-04
Abstract
Abstract An electric vehicle comprising a body, an axle rotatably supported by the body, a rotor supported by the body for rotation about a longitudinal axis, a gearing assembly for selectively drivingly connecting the rotor to the axle, and a stator supported by the body. The stator includes a stator core which has a longitudinal opening housing the rotor and which has an outer surface. The outer surface includes upper and lower longitudinally extending recesses oppositely disposed relative to the axis. The stator also includes upper and lower cleats respectively mounted in the upper and lower recesses, the cleats and the longitudinal axis defining a common vertical plane.
Inventors
- 👤 J. Herbert Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:02
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/12; H02K15/02; H02K15/021; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/64; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
A method of manufacturing an electric vehicle, said method comprising the steps of: (A) stacking stator laminations; (B) securing said laminations together to form a stator core assembly having a longitudinal axis and having an outer surface including upper and lower longitudinally extending recesses, said securing step including the steps of (1) securing upper and lower cleats in said upper and lower recesses, respectively, so that said cleats and said longitudinal axis define a common plane, and (2) securing stator rings to said laminations; (C) dipping said stator core assembly in bonding varnish; (D) draining excess varnish from said stator core assembly after step (C); (E) clamping said stator core assembly together after step (D), said clamping step including the step of placing a clamping plate at each end of said assembly; (F) baking said clamped stator core assembly to cure said bonding varnish after step (E); (G) removing said clamping plates after step (F); (H) winding said stator core assembly after step (G) to form a stator; and (I) mounting said stator on a vehicle body so that said common plane defined by said axis and said cleats extends vertically.
Claim 2
Independent Claim
191 words
A method of manufacturing an electric vehicle, said method comprising the steps of: (A) stacking stator laminations; (B) securing said laminations together to form a stator core assembly having a longitudinal axis and having an outer surface including upper and lower longitudinally extending recesses, said securing step including the steps of (1) securing upper and lower cleats in said upper and lower recesses, respectively, so that said cleats and said longitudinal axis define a common plane, and (2) securing stator rings to said laminations; (C) dipping said stator core assembly in bonding varnish; (D) draining excess varnish from said stator core assembly after step (C); (E) clamping said stator core assembly together after step (D), said clamping step including the step of placing a clamping plate at each end of said assembly; (F) baking said clamped stator core assembly to cure said bonding varnish after step (E); (G) removing said clamping plates after step (F); (H) winding said stator core assembly after step (G) to form a stator; and (I) mounting said stator on a vehicle body so that said common plane defined by said axis and said cleats extends vertically.
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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) | 1998-03-20 | 1998-09-19 | 1999-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-03-20 | 2002-09-19 | 2003-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-03-20 | 2006-09-19 | 2007-03-21 | $7700.00 | Window Closed / Lapsed |