Patent US2697772A successfully refreshed from Google Patents.
US2697772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making material
Assignee: Kaiser Aluminum and Chemical Corp
•
Filing: 1952-05-12
•
Granted: 1954-12-21
•
Expires: 1972-05-12
Abstract
No abstract record available.
Inventors
- 👤 Charles M Kinghorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:21
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/22; H01B13/26; H01B13/2613; H01B13/2633; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A PROCESS FOR APPLYING ALUMINUM SHEATHING TO INSULATED CABLE WHEREIN ALUMINUM STRIP MATERIAL IS PROGRESSIVELY ROLL-FORMED INTO OPEN SEAM TUBING, CABLE IS PROGRESSIEVLY FED INTO SAID FORMED TUBING, THE CABLE AND SURROUNDING OPEN SEAM TUBING ARE PASSED THROUGH A HIGH FREQUENCY INDUCTION COIL, AND THE SEAM EDGES OF THE TUBING BEING BROUGHT TOGETHER AT A POINT ADJACENT THE EXIT END OF SAID COIL TO CAUSE HIGH CURRENT CONCENTRATION AND FUSION OF SAID EDGES TOGETHER, THE IMPROVEMENT WHICH COMPRISES PROGRESSIVELY FEEDING A NON-CONDUCTING PROTECTIVE TAPE ONTO SAID CABLE AS IT IS BEING FED INTO SAID TUBING SUCH THAT SAID PROTECTIVE TAPE IS POSITIONED BETWEEN SAID OPEN SEAM AND SAID CABLE WHEREBY SAID CABLE IS PROTECTED FROM THE HEAT AND FLASH PRODUCED DURING WELDING.
Claim 2
Dependent Claim
123 words
IN A PROCESS FOR APPLYING ALUMINUM SHEATHING TO INSULATED CABLE WHEREIN ALUMINUM STRIP MATERIAL IS PROGRESSIVELY ROLL-FORMED INTO OPEN SEAM TUBING, CABLE IS PROGRESSIEVLY FED INTO SAID FORMED TUBING, THE CABLE AND SURROUNDING OPEN SEAM TUBING ARE PASSED THROUGH A HIGH FREQUENCY INDUCTION COIL, AND THE SEAM EDGES OF THE TUBING BEING BROUGHT TOGETHER AT A POINT ADJACENT THE EXIT END OF SAID COIL TO CAUSE HIGH CURRENT CONCENTRATION AND FUSION OF SAID EDGES TOGETHER, THE IMPROVEMENT WHICH COMPRISES PROGRESSIVELY FEEDING A NON-CONDUCTING PROTECTIVE TAPE ONTO SAID CABLE AS IT IS BEING FED INTO SAID TUBING SUCH THAT SAID PROTECTIVE TAPE IS POSITIONED BETWEEN SAID OPEN SEAM AND SAID CABLE WHEREBY SAID CABLE IS PROTECTED FROM THE HEAT AND FLASH PRODUCED DURING WELDING.
References Cited (Backward Citations)
US2165310A
Cited
US692012A
Cited
GB377655A
Cited
US2146430A
Cited
US2029044A
Cited
US2088446A
Cited
US2063470A
Cited
US2243979A
Cited
US2210338A
Cited
US2508465A
Cited
FR952419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |