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US4222339A
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Automatic compound pattern generation type sewing machine
Assignee: Yaskawa Electric Corp
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Filing: 1978-10-11
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Granted: 1980-09-16
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Expires: 1998-10-11
Abstract
Abstract An automatic pattern generation type sewing machine having a digital signal generator for outputting digital signals corresponding to stitch positions of a stitch pattern provided by the use of a signal synchronous with the arm shaft of the sewing machine is so improved that a plurality of sets of parameters can be successively applied to the digital signal generator and quadrants of a stitch pattern can be designated to form a more complicated, compound pattern.
Inventors
- 👤 Akinobu Iwako
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:43
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/41; G05B19/4103; D; D05; D05B; D05B19/00; D05B19/02; D05B19/04; D05B19/08; G05B2219/00; G05B2219/30; G05B2219/34; G05B2219/34161; G05B2219/34174; G05B2219/50; G05B2219/50103
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
90 words
In an automatic pattern generation type sewing machine, a digital signal generating device including function generation means for calculating stitch positions in accordance with a function and selected input parameters and means for outputting digital signals corresponding to the calculated stitch positions, said function generation means being operable in accordance with signals synchronous with the rotation of the arm shaft of the sewing machine, and means for successively applying different sets of parameters to said digital signal generating device to vary the stitch positions calculated in accordance with the function.
Claim 2
Dependent Claim
90 words
In an automatic pattern generation type sewing machine, a digital signal generating device including function generation means for calculating stitch positions in accordance with a function and selected input parameters and means for outputting digital signals corresponding to the calculated stitch positions, said function generation means being operable in accordance with signals synchronous with the rotation of the arm shaft of the sewing machine, and means for successively applying different sets of parameters to said digital signal generating device to vary the stitch positions calculated in accordance with the function.
Claim 3
Dependent Claim
21 words
A machine as claimed in claim 1, wherein said applying means applies parameters for designating the quadrants for the stitch pattern.
Claim 4
Dependent Claim
23 words
A machine according to claim 1, wherein said applying means further applies parameters for varying the output from said digital signal generating device.
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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) | 1983-09-16 | 1984-03-17 | 1984-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-16 | 1988-03-17 | 1988-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-16 | 1992-03-17 | 1992-09-16 | $7700.00 | Window Closed / Lapsed |