Patent US3765930A successfully refreshed from Google Patents.
US3765930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for coating the surface of a thin wire with a layer of another metal
Assignee: Toshiba Corp
•
Filing: 1971-07-06
•
Granted: 1973-10-16
•
Expires: 1991-07-06
Abstract
Abstract A method for manufacturing a dumet wire or a similar thin metal wire coated with a different metal wherein a small capillary device, which provides above the level of a molten metal bath a small capillary space to be filled with the molten metal by virtue of capillary attraction, is dipped into the molten metal bath, and a metal wire to be coated is passed through a molten metal pool created in the capillary space.
Inventors
- 👤 T Miyano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:53
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/34; C23C2/36; C23C2/38; C23C2/003; C23C2/0036; C23C2/00361; H; H01; H01J; H01J19/00; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0019; H01J2893/0022
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
28 words
The method according to claim 1 wherein the small capillary device comprises a pair of walls facing each other and a bottom connecting ends of the two walls.
Claim 2
Dependent Claim
19 words
The method according to claim 1 wherein the small capillary device is a short piece of a capillary tube.
Claim 3
Dependent Claim
25 words
The method according to claim 2 wherein the small capillary device has holes in the walls through which a wire to be coated is passed.
Claim 4
Dependent Claim
25 words
The method according to claim 3 wherein the capillary tube has holes in the tube wall through which a wire to be coated is passed.
Claim 5
Dependent Claim
123 words
The method according to claim 1 wherein the molten metal is contained in a vessel which has a cylindrical passage for the wire vertically protruded from the bottom of the vessel through which the wire runs without contacting the molten metal in the vessel and the capillary device is a double-walled cap put on said cylindrical passage, the open lower edges of which are immersed in the molten metal so that the molten metal fills the gap formed by the double walls by virtue of a capillary attraction, and the double walls have holes which are provided in a top position of the cap corresponding to that of the protruded cylindrical passage so that the wire runs through the passage and the holes.
Claim 6
Dependent Claim
19 words
The method according to claim 1 wherein the distance of the capillary gap is a maximum of 2 mm.
Claim 7
Dependent Claim
30 words
The method according to claim 1 wherein the capillary space provided by the small capillary device has a bulged middle part, the width thereof being a maximum of 5 mm.
References Cited (Backward Citations)
US1033912A
Cited
US1076526A
Cited
US1454224A
Cited
US2255436A
Cited
US2325129A
Cited
US2934458A
Cited
US2914419A
Cited
US2937108A
Cited
US3196830A
Cited
GB1192213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |