US3650231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatable work support for a sewing machine
Assignee: Individual
•
Filing: 1969-08-11
•
Granted: 1972-03-21
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Expires: 1989-08-11
Abstract
Abstract An improved sewing machine including a rotatable sewing table having a curved surface for supporting the material to be sewn and for moving the material into the path of the sewing needle. A novel material supporting member is adapted to be moved axially toward and retracted away from registry with the curved surface of the sewing table.
Inventors
- 👤 Louis E Tinari
- 👤 David H Kamena
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:29
CPC Classifications
D; D05; D05B; D05B27/00; D05B27/10; D05B39/00; D05D; D05D2207/00; D05D2207/02; D05D2207/05; D05D2207/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
67 words
In a sewing machine having a sewing head including needle drive means for reciprocating a sewing needle, the improvement which comprises a rotatable sewing table having a curved surface for supporting material to be sewn, said curved surface having a slot therein for the needle to pass through when it is reciprocated, and slotted clamping means for holding the material to be sewn against said curved surface.
Claim 2
Dependent Claim
67 words
In a sewing machine having a sewing head including needle drive means for reciprocating a sewing needle, the improvement which comprises a rotatable sewing table having a curved surface for supporting material to be sewn, said curved surface having a slot therein for the needle to pass through when it is reciprocated, and slotted clamping means for holding the material to be sewn against said curved surface.
Claim 3
Dependent Claim
17 words
A sewing machine as claimed in claim 1 wherein said rotatable sewing table comprises a cylindrical drum.
Claim 4
Dependent Claim
32 words
A sewing machine as claimed in claim 1 further including a material supporting member for feeding material into register with the curved surface of the sewing table and beneath said clamping means.
Claim 5
Dependent Claim
30 words
A sewing machine as claimed in claim 3 wherein said material supporting member includes means for axially moving it toward and retracting it away from engagement with the sewing table.
Claim 6
Dependent Claim
30 words
A sewing machine as claimed in claim 4 wherein said means for moving the material supporting member comprises a shaft slideably mounted upon the sewing table beneath said curved surface.
Claim 7
Dependent Claim
19 words
A sewing machine as claimed in claim 4 further including means for clamping material to said material supporting member.
Claim 8
Dependent Claim
47 words
A sewing machine as claimed in claim 4 wherein said material supporting member includes a plurality of curved blades adapted to slide over the curved surface of the sewing table and beneath said clamping means before the same is engaged to clamp material to the sewing table.
Claim 9
Dependent Claim
59 words
A sewing machine as claimed in claim 5 further including a pneumatic cylinder having a piston connected to said shaft for axially moving the material supporting member into register with the curved surface of the sewing table and for retracting same after the clamping means is engaged to clamp the material to the curved surface of the sewing table.
Claim 10
Dependent Claim
35 words
A sewing machine as claimed in claim 1 further including drive means for moving said sewing table in discrete steps in order to move material to be sewn into the path of said reciprocating 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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |