US4248168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewing machine arranged for edge following by needle movement
Assignee: Retail Holding NV
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Filing: 1980-03-13
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Granted: 1981-02-03
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Expires: 2000-03-13
Abstract
Abstract A sewing machine is disclosed wherein the position of the edge of a work fabric is sensed and signals are generated to control the needle jogging mechanism in order to sew a line of stitches a substantially constant predetermined distance from the edge.
Inventors
- 👤 Jay Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:06
CPC Classifications
D; D05; D05B; D05B35/00; D05B35/10; D05B35/102; D05B73/00; D05B73/04; D05B73/12; D05D; D05D2203/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
105 words
In a sewing machine having an endwise reciprocable needle movable laterally with respect to the direction of work feed and jogging means for effecting lateral positioning of the needle, an arrangement for controlling the sewing of a line of stitches a substantially constant predetermined distance from the edge of a work fabric comprising: means for sensing the location of said edge in the general vicinity of the needle and for providing a signal representative of the distance between said edge and said needle; and means responsive to said signal for controlling the jogging means to laterally position said needle said predetermined distance from said edge.
Claim 2
Dependent Claim
105 words
In a sewing machine having an endwise reciprocable needle movable laterally with respect to the direction of work feed and jogging means for effecting lateral positioning of the needle, an arrangement for controlling the sewing of a line of stitches a substantially constant predetermined distance from the edge of a work fabric comprising: means for sensing the location of said edge in the general vicinity of the needle and for providing a signal representative of the distance between said edge and said needle; and means responsive to said signal for controlling the jogging means to laterally position said needle said predetermined distance from said edge.
Claim 3
Dependent Claim
20 words
The arrangement according to claim 1 further including means for providing an adjustable operator controlled setting for said predetermined distance.
Claim 4
Dependent Claim
91 words
In a sewing machine having an endwise reciprocable needle movable laterally with respect to the direction of work feed, an arrangement for controlling the sewing of a line of stitches a substantially constant predetermined distance from the edge of a work fabric comprising: means for establishing a desired position for said edge; means for sensing the actual position of said edge; means for providing a signal representative of the difference between said actual position and said desired position; and means utilizing said signal for controlling the lateral position of said needle.
Claim 5
Dependent Claim
91 words
In a sewing machine having an endwise reciprocable needle movable laterally with respect to the direction of work feed, an arrangement for controlling the sewing of a line of stitches a substantially constant predetermined distance from the edge of a work fabric comprising: means for establishing a desired position for said edge; means for sensing the actual position of said edge; means for providing a signal representative of the difference between said actual position and said desired position; and means utilizing said signal for controlling the lateral position of said needle.
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) | 1984-02-03 | 1984-08-04 | 1985-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-03 | 1988-08-04 | 1989-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-03 | 1992-08-04 | 1993-02-03 | $7700.00 | Window Closed / Lapsed |