Patent US3739735A successfully refreshed from Google Patents.
US3739735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor mount for sewing machines
Assignee: Singer Co
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Filing: 1972-05-01
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Granted: 1973-06-19
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Expires: 1992-05-01
Abstract
Abstract A mounting arrangement for pivotally supporting an electric motor within the casing of a sewing machine with provision for angular adjustment of the motor to regulate the tension in a belt by which the motor drives the sewing machine and in which the pivotal motor support is arranged to provide for maximum belt tension adjustment with minimum disturbance in the registration of an electrical connector socket on the motor relatively to a clearance opening for the electrical connector in the sewing machine casing.
Inventors
- 👤 W Herron
- 👤 K Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:53
CPC Classifications
D; D05; D05B; D05B69/00; D05B69/10; D05B69/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
116 words
In a sewing machine having a frame with a casing, an electric sewing machine driving motor having a housing, a drive shaft projecting exteriorly of said housing and an electrical socket carried on said housing, means for shiftably supporting said electric motor within said sewing machine casing comprising interengaging pivot means on said sewing machine frame and on said electric motor housing remote from said drive shaft and contiguous to said electrical socket, and shiftable motor locating means on said sewing machine frame and said motor housing remote from said electrical socket, said sewing machine casing being formed with an electrical plug accommodating clearance aperture arranged in registry with said electrical socket on said motor housing.
Claim 2
Dependent Claim
116 words
In a sewing machine having a frame with a casing, an electric sewing machine driving motor having a housing, a drive shaft projecting exteriorly of said housing and an electrical socket carried on said housing, means for shiftably supporting said electric motor within said sewing machine casing comprising interengaging pivot means on said sewing machine frame and on said electric motor housing remote from said drive shaft and contiguous to said electrical socket, and shiftable motor locating means on said sewing machine frame and said motor housing remote from said electrical socket, said sewing machine casing being formed with an electrical plug accommodating clearance aperture arranged in registry with said electrical socket on said motor housing.
Claim 3
Dependent Claim
61 words
In a sewing machine as set forth in claim 1 in which said pivot means supports said motor housing on an axis Parallel to said drive shaft, and in which said pivot means and said electrical socket are arranged at one side of said drive shaft and said motor locating means is arranged at the opposite side of said drive shaft.
Claim 4
Dependent Claim
46 words
In a sewing machine as set forth in claim 2 in which said motor locating means comprises a guideway formed in said motor housing substantially radially of said pivot means, and a crank pin adjustably secured in said sewing machine frame and engaged in said guideway.
References Cited (Backward Citations)
US3141429A
Cited
US3157142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |