Patent US3783805A successfully refreshed from Google Patents.
US3783805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for turning-in the border of pieces made of flexible sheets
Assignee: CENTRE D ETUDES TECHNIQUES DES IND de l HABILLEMENT FR
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Filing: 1972-01-06
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Granted: 1974-01-08
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Expires: 1992-01-06
Abstract
Abstract Device for turning-in the border of pieces made of flexible sheets comprising : means for supporting the piece in such a way that its marginal portion that is to be turned-in finds itself, at least partially, in a predetermined reference plane ; a lateral guide for positioning the border of the said marginal portion ; means for causing the border of the marginal piece portion which finds itself in the said reference plane to advance longitudinally, against the said lateral positioning guide ; a stop whose position, in relation to the lateral guide, determines the width of the turning-in that is to be formed ; a turning mobile member ensuring the formation of the turning-in in cooperation with the said stop ; control means for the turning-in member ; and means for introducing the turned-in marginal portion of the piece into the entry of the machine for fixing the turning-in.
Inventors
- 👤 J Guichard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:06
CPC Classifications
D; D05; D05B; D05B35/00; D05B35/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
191 words
A device for turning-in the border of a flexible sheet for subsequent fixing of the turned border by a machine, said device comprising means supporting said sheet in a longitudinal plane, a lateral positioning guide engaging said sheet, a stop having an end portion located adjacent said sheet at a distance from its edge corresponding to the width of the turned border, a turningin member comprising a fork having a handle and two prongs, one of said prongs being longer than the other, both prongs having rounded ends, means actuating said turning-in member relatively to said sheet and said stop to turn an edge of said sheet by a width determined by the location of said stop, and means moving said sheet relatively to said guide and toward said machine, wherein said means actuating the turning-in member comprise means moving it toward said stop initially in a plane parallel to said plane of the sheet, then pivoting it by substantially 90 degrees and then moving it in a plane perpendicular to said plane of the sheet to cause said longer prong to turn an edge of said sheet over said top.
Claim 2
Independent Claim
191 words
A device for turning-in the border of a flexible sheet for subsequent fixing of the turned border by a machine, said device comprising means supporting said sheet in a longitudinal plane, a lateral positioning guide engaging said sheet, a stop having an end portion located adjacent said sheet at a distance from its edge corresponding to the width of the turned border, a turningin member comprising a fork having a handle and two prongs, one of said prongs being longer than the other, both prongs having rounded ends, means actuating said turning-in member relatively to said sheet and said stop to turn an edge of said sheet by a width determined by the location of said stop, and means moving said sheet relatively to said guide and toward said machine, wherein said means actuating the turning-in member comprise means moving it toward said stop initially in a plane parallel to said plane of the sheet, then pivoting it by substantially 90 degrees and then moving it in a plane perpendicular to said plane of the sheet to cause said longer prong to turn an edge of said sheet over said top.
Claim 3
Dependent Claim
85 words
A device in accordance with claim 1, wherein said sheet supporting means comprise two rollers, and means driving at least one of said rollers and wherein one of said rollers is situated in front of said stop and turning-in member relatively to the Movement of said sheet, the other one of said rollers being situated behind said stop and turning-in member, said sheet supporting means further comprising a third roller and means movably connecting said two rollers with said third roller for stretching the sheet.
Claim 4
Dependent Claim
35 words
A device in accordance with claim 1, wherein the last-mentioned means pivot said turning-in member when its longer prong reaches the stop and terminate its movement when the bottom of its fork reaches the stop.
Claim 5
Dependent Claim
37 words
A device in accordance with claim 1, wherein the longer prong of said turning-in member has an inner portion extending substantially parallel to the other prong and an outer portion extending substantially perpendicularly to said inner portion.
Claim 6
Dependent Claim
80 words
A device in accordance with claim 1, wherein said means actuating the turning-in member comprise a handle carrying said fork and wherein said means actuating the turning-in member comprise a jack having a moving member connected with said handle, a fixed sleeve, said handle being located in said sleeve and movable therein, said sleeve having a cam groove including two rectilinear portions and an inclined portion interconnecting said rectilinear portions, said handle having a lug slidable in said cam groove.
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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |