US3811045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coil manufacturing process
Assignee: Magnetic Labor Inc
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Filing: 1972-04-19
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Granted: 1974-05-14
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Expires: 1992-04-19
Abstract
Abstract A plurality of bobbins are simultaneously molded directly onto a common arbor. The arbor with the bobbins is then placed in a multiple coil winding machine for the simultaneous winding of a coil on each bobbin. Various finishing and testing operations may then be performed on the coil while still using the arbor as a carrier. The entire assembly is then placed in a molding apparatus whereby each of the coils is simultaneously overmolded while still in place on the common arbor. Subsequent to the overmolding operation, the individual encapsulated coils may be stripped from the arbor.
Inventors
- 👤 N Turner
- 👤 Gonigal J Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:01
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; B; B29; B29C; B29C70/00; B29C70/68; B29C70/72; H01F41/005; B29L; B29L2031/00; B29L2031/30; B29L2031/3055; B29L2031/3061; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49004; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
70 words
A coil manufacturing process comprising molding a plurality of bobbins simultaneously on a single shaft in spaced-apart relation completely independent from each other, winding a coil simultaneously on each of said bobbins while said bobbins are still secured to said shaft, overmolding a protective coating on each of said bobbins simultaneously to provide a plurality of independent unattached coil assemblies on said shaft, and separating the bobbins from said shaft.
Claim 2
Dependent Claim
70 words
A coil manufacturing process comprising molding a plurality of bobbins simultaneously on a single shaft in spaced-apart relation completely independent from each other, winding a coil simultaneously on each of said bobbins while said bobbins are still secured to said shaft, overmolding a protective coating on each of said bobbins simultaneously to provide a plurality of independent unattached coil assemblies on said shaft, and separating the bobbins from said shaft.
Claim 3
Dependent Claim
36 words
A coil manufacturing process as set forth in claim 1 wherein additional testing and finishing operations are performed on said coils prior to said overmolding while still maintaining said coils in secured relation to said arbor.
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) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |