US3870852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for cutting rubberised stranded wire
Assignee: Semperit AG Holding
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Filing: 1969-12-01
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Granted: 1975-03-11
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Expires: 1989-12-01
Abstract
Abstract A process and apparatus is disclosed for cutting rubberised wire in which a carbon dioxide gas laser is provided to project a beam which is used to cut said rubberised wire. Cooling means, a jet of a shield gas and/or a suction device may be provided.
Inventors
- 👤 Herbert Kogert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:27
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/36; B23K26/40; B23K2103/00; B23K2103/50
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
191 words
A process for simultaneously cutting two dissimilar materials such as rubberised metal wire for use as reinforcing inserts for the manufacture of tires, comprising the steps of: placing rubberised wire composed of metallic wire elements enclosed by a rubber coating in a position for performing a cutting operation, the metallic wire elements and the rubber coating having respectively different melting points; directing a laser beam along the desired line of cut of the rubberised wire; enclosing in a nonreactive shielding gas atmosphere said laser beam and said rubberised wire at the point of incidence of said laser beam in order to remove any danger of the rubber igniting; clamping said rubberised wire with cooled bars, the combination of the steps of enclosing in a non-reactive shielding gas atmosphere and clamping said rubberised wire with cooled bars acting to effectively prevent destruction of the rubber coating in the area adjacent the cut; removing by suction any decomposition products which may appear at the region of the line of cut of the rubberised wire; and simultaneously cutting by means of the directed laser beam both the rubber coating and the metallic wire elements.
Claim 2
Dependent Claim
191 words
A process for simultaneously cutting two dissimilar materials such as rubberised metal wire for use as reinforcing inserts for the manufacture of tires, comprising the steps of: placing rubberised wire composed of metallic wire elements enclosed by a rubber coating in a position for performing a cutting operation, the metallic wire elements and the rubber coating having respectively different melting points; directing a laser beam along the desired line of cut of the rubberised wire; enclosing in a nonreactive shielding gas atmosphere said laser beam and said rubberised wire at the point of incidence of said laser beam in order to remove any danger of the rubber igniting; clamping said rubberised wire with cooled bars, the combination of the steps of enclosing in a non-reactive shielding gas atmosphere and clamping said rubberised wire with cooled bars acting to effectively prevent destruction of the rubber coating in the area adjacent the cut; removing by suction any decomposition products which may appear at the region of the line of cut of the rubberised wire; and simultaneously cutting by means of the directed laser beam both the rubber coating and the metallic wire elements.
Claim 3
Dependent Claim
191 words
A process for simultaneously cutting two dissimilar materials such as rubberised metal wire for use as reinforcing inserts for the manufacture of tires, comprising the steps of: placing rubberised wire composed of metallic wire elements enclosed by a rubber coating in a position for performing a cutting operation, the metallic wire elements and the rubber coating having respectively different melting points; directing a laser beam along the desired line of cut of the rubberised wire; enclosing in a nonreactive shielding gas atmosphere said laser beam and said rubberised wire at the point of incidence of said laser beam in order to remove any danger of the rubber igniting; clamping said rubberised wire with cooled bars, the combination of the steps of enclosing in a non-reactive shielding gas atmosphere and clamping said rubberised wire with cooled bars acting to effectively prevent destruction of the rubber coating in the area adjacent the cut; removing by suction any decomposition products which may appear at the region of the line of cut of the rubberised wire; and simultaneously cutting by means of the directed laser beam both the rubber coating and the metallic wire elements.
Claim 4
Dependent Claim
191 words
A process for simultaneously cutting two dissimilar materials such as rubberised metal wire for use as reinforcing inserts for the manufacture of tires, comprising the steps of: placing rubberised wire composed of metallic wire elements enclosed by a rubber coating in a position for performing a cutting operation, the metallic wire elements and the rubber coating having respectively different melting points; directing a laser beam along the desired line of cut of the rubberised wire; enclosing in a nonreactive shielding gas atmosphere said laser beam and said rubberised wire at the point of incidence of said laser beam in order to remove any danger of the rubber igniting; clamping said rubberised wire with cooled bars, the combination of the steps of enclosing in a non-reactive shielding gas atmosphere and clamping said rubberised wire with cooled bars acting to effectively prevent destruction of the rubber coating in the area adjacent the cut; removing by suction any decomposition products which may appear at the region of the line of cut of the rubberised wire; and simultaneously cutting by means of the directed laser beam both the rubber coating and the metallic wire elements.
Claim 5
Dependent Claim
22 words
The process as defined in claim 1, including the step of utilizing a carbon dioxide gas laser to prodUce the laser beam.
Claim 6
Dependent Claim
27 words
The process as defined in claim 1, wherein the cooling step is undertaken during clamping of the rubberised wire at both sides of the line of cut.
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) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |