US3770552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for cutting and forming stop connections for a sliding fastener continuously sewn on a series of workpieces
Assignee: AILEE FERMETURE SA
•
Filing: 1971-11-08
•
Granted: 1973-11-06
•
Expires: 1991-11-08
Abstract
Abstract Device for simultaneously cutting and forming a stop connection on a sliding fastener composed of plastics material and supplied continuously and sewn to a series of workpieces. The device comprises a base having guide means for the fastener and an anvil fixed to the base. An element is made to undergo an alternating movement perpendicular to the plane of the anvil. The element carries means for cutting the fastener and means for forming, by a welding action, a stop connection in the fastener. The cutting means are offset from the forming means in the direction in which the fastener is guided by the guide means.
Inventors
- 👤 G Lacam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:49
CPC Classifications
D; D05; D05B; D05B3/00; D05B3/12; D05B3/18; A; A41; A41H; A41H37/00; A41H37/06; A44; A44B; A44B19/00; A44B19/24; A44B19/36; A44B19/42; A44B19/60; B; B26; B26D; B26D1/00; D05D; D05D2305/00; D05D2305/08; D05D2305/12; Y; Y10; Y10T; Y10T156/00; Y10T156/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
151 words
A device for cutting a length of a sliding fastener strip which is composed of plastics material and supplied continuously and sewn to a series of workpieces, and for simultaneously forming a stop connection on the next length of said sliding fastener strip, comprising in combination : an element having means for cutting the whole width of the fastener and means for forming by welding action a stop connection, said two means being offset from each other in the direction in which the fastener is supplied, means imparting to the element an alternating movement, means defining a base having an inverted V-shaped longitudinal section, guiding means for the sliding fastener on said base and an anvil lying in a plane secured on an inclined face of said base, said element being correspondingly inclined and said means imparting to said element an alternating movement in a direction perpendicular to said anvil plane.
Claim 2
Independent Claim
151 words
A device for cutting a length of a sliding fastener strip which is composed of plastics material and supplied continuously and sewn to a series of workpieces, and for simultaneously forming a stop connection on the next length of said sliding fastener strip, comprising in combination : an element having means for cutting the whole width of the fastener and means for forming by welding action a stop connection, said two means being offset from each other in the direction in which the fastener is supplied, means imparting to the element an alternating movement, means defining a base having an inverted V-shaped longitudinal section, guiding means for the sliding fastener on said base and an anvil lying in a plane secured on an inclined face of said base, said element being correspondingly inclined and said means imparting to said element an alternating movement in a direction perpendicular to said anvil plane.
Claim 3
Dependent Claim
43 words
A device as claimed in claim 1, wherein the cutting means have a beveled cutting edge and the forming means comprise a rectangular-sided block located at a distance from the cutting edge with respect to said direction in which the fastener is guided.
Claim 4
Dependent Claim
46 words
A device as claimed in claim 2, wherein the cutting edge has a V shape transversely of said direction in which the fastener is guided so as to produce a V-shaped cut in the fastener and facilitate a subsequent assembly of a slide with the fastener.
Claim 5
Dependent Claim
36 words
A device as claimed in claim 2, wherein the bLock has a recessed centre part so that the block has a U shape, the U shape having limbs acting as guide means for the sliding fastener.
Claim 6
Dependent Claim
19 words
A device as claimed in claim 2, wherein the beveled cutting edge has the general shape of a T.
Claim 7
Dependent Claim
35 words
A device as claimed in claim 1, wherein the guide means comprise two L-sectioned members fixed to the base at a distance from and parallel to each other so as to define a guide recess.
Claim 8
Independent Claim
30 words
A device as claimed in calim 1, wherein the cutting means and the forming means are engraved in the element which is metallic and connected to a generator of ultrasounds.
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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |