US3676725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means connecting a synchronous motor to a gear train housing
Assignee: Duracell Inc USA
•
Filing: 1970-09-23
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Granted: 1972-07-11
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Expires: 1990-09-23
Abstract
Abstract A synchronous motor is coupled to a gear train through their respective housings. The housings are coupled together by tabs which extend from the motor housing to engage the gear train housing through apertures formed in its housing.
Inventors
- 👤 Joseph E Wiser
- 👤 Peter H Gerhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:27
CPC Classifications
G; G04; G04B; G04B29/00; G04C; G04C15/00; H; H02; H02K; H02K7/00; H02K7/10; H02K7/116
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
108 words
In a synchronous motor in combination with a gear train means, said synchronous motor and said gear train means each including housing means, said synchronous motor housing means including a shell and stator poles lanced from said shell, tab means extending outwardly from said shell, keyhole-shaped apertures disposed in said gear train housing means receiving said tab means, displacement of said tab means within said keyhole-shaped apertures a predetermined distance substantially locking said gear train housIng means to said synchronous motor housing means, and locking means carried by said gear train housing engaging said shell to further aid in locking said gear train housing means to said shell.
Claim 2
Dependent Claim
108 words
In a synchronous motor in combination with a gear train means, said synchronous motor and said gear train means each including housing means, said synchronous motor housing means including a shell and stator poles lanced from said shell, tab means extending outwardly from said shell, keyhole-shaped apertures disposed in said gear train housing means receiving said tab means, displacement of said tab means within said keyhole-shaped apertures a predetermined distance substantially locking said gear train housIng means to said synchronous motor housing means, and locking means carried by said gear train housing engaging said shell to further aid in locking said gear train housing means to said shell.
Claim 3
Dependent Claim
34 words
In a synchronous motor in combination with a gear train means according to claim 1 wherein said tab means includes a neck portion and a head portion substantially parallel and spaced from said shell.
Claim 4
Dependent Claim
24 words
In a synchronous motor in combination with a gear train means according to claim 2 wherein said tab means is lanced from said shell.
Claim 5
Dependent Claim
44 words
In a synchronous motor in combination with gear train means according to claim 1 wherein said locking means includes a spring means lanced from said gear train housing means engaging a side of an aperture formed from said lanced stator poles of said shell.
Claim 6
Dependent Claim
42 words
In a synchronous motor in combination with a gear train means according to claim 1 wherein said apertures are keyhole-shaped, said tab means includes a neck portion and a head portion, and said head portion is at an angle to said shell.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |