US3570430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewing machine
Assignee: Mefina SA
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Filing: 1969-03-10
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Granted: 1971-03-16
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Expires: 1989-03-10
Abstract
Abstract A sewing machine accessory is provided with two side flaps and a front flap and also has a flat top surface which cooperates with the upper face of the free lower arm of the sewing machine when the accessory is slipped thereon, to thereby provide an enlarged work surface. The flaps can be raised to enclose the machine when it is not in use.
Inventors
- 👤 Marcel Fresard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:16
CPC Classifications
D; D05; D05B; D05B77/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
155 words
In combination with a sewing machine including a casing, a base, a pedestal, a free lower arm, an upper arm and a head, an accessory slipped onto said free arm, said accessory including sidewalls, and a top surface which cooperates with the upper face of said free arm so as to provide a larger work surface therefor, whereby the sewing machine can be converted from an enlarged flat work surface to a free arm machine, a plurality of flaps hinged to the upper edges of said sidewalls, said flaps adapted to be raised against said casing to form an enclosure for the sewing machine and lowered to permit use of the sewing machine and when they are in said lowered position, providing ramps for guiding the material to be sewn towards the needle plate, and means on said head to engage said flaps when they are in raised position to retain them against said casing.
Claim 2
Dependent Claim
155 words
In combination with a sewing machine including a casing, a base, a pedestal, a free lower arm, an upper arm and a head, an accessory slipped onto said free arm, said accessory including sidewalls, and a top surface which cooperates with the upper face of said free arm so as to provide a larger work surface therefor, whereby the sewing machine can be converted from an enlarged flat work surface to a free arm machine, a plurality of flaps hinged to the upper edges of said sidewalls, said flaps adapted to be raised against said casing to form an enclosure for the sewing machine and lowered to permit use of the sewing machine and when they are in said lowered position, providing ramps for guiding the material to be sewn towards the needle plate, and means on said head to engage said flaps when they are in raised position to retain them against said casing.
Claim 3
Dependent Claim
38 words
The sewing machine as defined in claim 1, wherein said accessory top surface comprises two flat members each connected to the upper edge of a respective sidewall and disposed on opposite sides of said free arm upper face.
Claim 4
Dependent Claim
55 words
The sewing machine as defined in claim 1, wherein said accessory top surface comprises two flat members each connected to the upper edge of a respective side wall and disposed on opposite sides of said free arm upper face, said flaps adjacent said two flat members extending substantially the entire length of said sewing machine.
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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |