US2839434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsion insulating varnish and method of coating an assembly of electrical conductors
Assignee: Sherwin Williams Co
•
Filing: 1955-10-06
•
Granted: 1958-06-17
•
Expires: 1975-10-06
Abstract
No abstract record available.
Inventors
- 👤 Haughney Joseph Paul
- 👤 Scott Albert Beveridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:29
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/36; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31688
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A METHOD OF INSULATING AN ASSEMBLY OF ELECTRICAL CONDUCTORS WHICH COMPRISES INITIALLY WETTING SAID ASSEMBLY WITH THE AQUEOUS PHASE OF AN OIL-IN-WATER EMULSION WHEREIN THE DISPERSE OIL PHASE COMPRISES A LIQUID DRYING OIL MODIFIED ALKALINE CONDENSED PHENOL-ALDEHYDE VARNISH, AND THE CONTINUOUS PHASE COMPRISES A MAJOR PROPORTION OF WATER AND NOT LESS THAN 3%, BASED ON THE WEIGHT OF SAID VARNISH SOLIDS, OF A NON-IONIC SURFACE ACTIVE AGENT HAVING A HYDROPHILIC NUMBER OF FROM 65 TO 90, EVAPORATING THE VOLATILE SOLVENT AND WATER TO WET THE CONDUCTOR WITH THE SAID RESIN AND CURING THE SAID OIL MODIFIED RESIN ON AND ABOUT THE SURFACE OF SAID CONDUCTOR ASSEMBLY AT AN ELEVATED TEMPERATURE AFTER HAVING WETTED THE SAME WITH SAID RESIN.
Claim 2
Independent Claim
118 words
A METHOD OF INSULATING AN ASSEMBLY OF ELECTRICAL CONDUCTORS WHICH COMPRISES INITIALLY WETTING SAID ASSEMBLY WITH THE AQUEOUS PHASE OF AN OIL-IN-WATER EMULSION WHEREIN THE DISPERSE OIL PHASE COMPRISES A LIQUID DRYING OIL MODIFIED ALKALINE CONDENSED PHENOL-ALDEHYDE VARNISH, AND THE CONTINUOUS PHASE COMPRISES A MAJOR PROPORTION OF WATER AND NOT LESS THAN 3%, BASED ON THE WEIGHT OF SAID VARNISH SOLIDS, OF A NON-IONIC SURFACE ACTIVE AGENT HAVING A HYDROPHILIC NUMBER OF FROM 65 TO 90, EVAPORATING THE VOLATILE SOLVENT AND WATER TO WET THE CONDUCTOR WITH THE SAID RESIN AND CURING THE SAID OIL MODIFIED RESIN ON AND ABOUT THE SURFACE OF SAID CONDUCTOR ASSEMBLY AT AN ELEVATED TEMPERATURE AFTER HAVING WETTED THE SAME WITH SAID RESIN.
References Cited (Backward Citations)
US2341062A
Cited
GB678936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |