US4488070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alternating current generator for a car having a multi part partition plate for aiding a cooling fan
Assignee: Mitsubishi Electric Corp
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Filing: 1983-11-30
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Granted: 1984-12-11
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Expires: 2003-11-30
Abstract
Abstract A partition plate structure for a cooling fan for an alternating current generator constructed in such a manner that an inner part of the rear bracket is inwardly extended in the radial direction to provide an extended surface so as to face the blade with a predetermined distance in an area where the rectifier and the brush holder are not placed; a first partition plate to be fastened to the rear bracket together with the rectifier and a second partition plate to be fastened to the rear bracket together with the brush holder are respectively placed in the rear bracket so as to be substantially flush with the extended surface.
Inventors
- 👤 Yoshiyuki Iwaki
- 👤 Hideo Imori
- 👤 Hitoshi Gotou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:53
CPC Classifications
H; H02; H02K; H02K9/00; H02K9/02; H02K9/04; H02K9/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
134 words
An alternating current generator for cars having a partition plate structure which comprises a blade attached to an outer surface of magnetic poles clamping a field coil and a rear bracket holding a rectifier and a brush holder at its bottom portion, wherein an inner part of said rear bracket is inwardly extended in the radial direction to provide an extended surface so as to face said blade with a predetermined distance in an area where said rectifier and said brush holder are not placed; a first partition plate to be fastened to said rear bracket together with said rectifier and a second partition plate to be fastened to said rear bracket together with said brush holder are respectively placed in said rear bracket so as to be substantially flush with said extended surface.
Claim 2
Dependent Claim
134 words
An alternating current generator for cars having a partition plate structure which comprises a blade attached to an outer surface of magnetic poles clamping a field coil and a rear bracket holding a rectifier and a brush holder at its bottom portion, wherein an inner part of said rear bracket is inwardly extended in the radial direction to provide an extended surface so as to face said blade with a predetermined distance in an area where said rectifier and said brush holder are not placed; a first partition plate to be fastened to said rear bracket together with said rectifier and a second partition plate to be fastened to said rear bracket together with said brush holder are respectively placed in said rear bracket so as to be substantially flush with said extended surface.
Claim 3
Dependent Claim
19 words
An alternating current generator according to claim 1, wherein said first and second partition plates are formed by resin-molding.
Claim 4
Dependent Claim
24 words
An alternating current generator according to claim 1, wherein said first and second partition plates and said extended surface form a generally hollow disc.
Claim 5
Dependent Claim
22 words
An alternating current generator according to claim 1, wherein said extended surface is formed by a stepped portion of said rear bracket.
Claim 6
Dependent Claim
29 words
An alternating current generator according to claim 1, wherein said extended surface is formed by a generally annular plate inwardly extending from the inner surface of said rear bracket.
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) | 1987-12-11 | 1988-06-11 | 1988-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-11 | 1992-06-11 | 1992-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-11 | 1996-06-11 | 1996-12-11 | $7700.00 | Window Closed / Lapsed |