US3668778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for joining ends of wires and the like
Assignee: BORGE F HAEGLAND
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Filing: 1969-04-03
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Granted: 1972-06-13
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Expires: 1989-04-03
Abstract
Abstract A method for joining ends of wires and the like by means of an explosive charge. A connecting tube with a bore adapted to receive the ends to be connected is provided with an external layer of explosive charge having a varying geometrical shape longitudinally of said tube so as to produce after detonation alternating parts of different compression so that the contact surface between the tube and the ends therein after compression forms a more or less corrugated profile in the longitudinal direction in order to form an axially locked connection of the assembled components.
Inventors
- 👤 Torleif Lindtveit
- 👤 Leif Johnsen
- 👤 Borge F Haegland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:04
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/04; B21D39/042; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49194; Y10T29/49195; Y10T29/49204; Y10T29/49208; Y10T29/49218; Y10T29/49805; Y10T29/49806
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
160 words
A method of joining the ends of two cables each having a central core and conductor strands surrounding the core comprising: a. stripping said cables so that the core ends project beyond the conductor strand ends; b. inserting said core ends into a connecting tube having an external explosive layer; c. detonating the explosive to compress the connecting tube around the core ends; d. placing a second tube over both said connecting tube and the conductor strands; e. providing said second tube with a layer of explosive; f. placing an intermediate layer of plastic deformable material between the explosive layer and the second tube; g. detonating the explosive layer over the second tube so as to compress the second tube around the connecting tube and the conductor strands, the compression varying over the length of the second tube and the strands in dependence upon the shape of the explosive layer thereover and the type and thickness of the intermediate layer.
Claim 2
Independent Claim
160 words
A method of joining the ends of two cables each having a central core and conductor strands surrounding the core comprising: a. stripping said cables so that the core ends project beyond the conductor strand ends; b. inserting said core ends into a connecting tube having an external explosive layer; c. detonating the explosive to compress the connecting tube around the core ends; d. placing a second tube over both said connecting tube and the conductor strands; e. providing said second tube with a layer of explosive; f. placing an intermediate layer of plastic deformable material between the explosive layer and the second tube; g. detonating the explosive layer over the second tube so as to compress the second tube around the connecting tube and the conductor strands, the compression varying over the length of the second tube and the strands in dependence upon the shape of the explosive layer thereover and the type and thickness of the intermediate layer.
Claim 3
Dependent Claim
39 words
The method of claim 1 including the steps of placing a protective case over the conductor strand ends prior to detonation of the connecting tube explosive and removing said casing prior to placing said second tube over the strands.
Claim 4
Dependent Claim
42 words
The method of claim 1 including the step of placing a filling member over the connecting tube after detonation of its explosive layer to fill the gap between the outside diameter of the strands and the outside diameter of the connecting tube.
Claim 5
Dependent Claim
24 words
The method of claim 3 including inserting split fillers between the connecting tube and the strand ends prior to placing the filling member thereover.
Claim 6
Dependent Claim
31 words
The method of claim 1 including placing said explosive layer in varying geometrical shape in the longitudinal direction of the connecting tube and strands so as to vary the compression effect.
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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |