CA2055548C - Appareil de chauffage electrique a basse resistance - Google Patents
Appareil de chauffage electrique a basse resistance Download PDFInfo
- Publication number
- CA2055548C CA2055548C CA 2055548 CA2055548A CA2055548C CA 2055548 C CA2055548 C CA 2055548C CA 2055548 CA2055548 CA 2055548 CA 2055548 A CA2055548 A CA 2055548A CA 2055548 C CA2055548 C CA 2055548C
- Authority
- CA
- Canada
- Prior art keywords
- heater
- electrical
- heating cable
- sheath
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Resistance Heating (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/622,025 US5060287A (en) | 1990-12-04 | 1990-12-04 | Heater utilizing copper-nickel alloy core |
US622,025 | 1990-12-04 | ||
US07/637,859 US5065818A (en) | 1991-01-07 | 1991-01-07 | Subterranean heaters |
US637,859 | 1991-01-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2055548A1 CA2055548A1 (fr) | 1992-06-05 |
CA2055548C true CA2055548C (fr) | 2001-05-08 |
Family
ID=27089116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2055548 Expired - Lifetime CA2055548C (fr) | 1990-12-04 | 1991-11-14 | Appareil de chauffage electrique a basse resistance |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN1049037C (fr) |
CA (1) | CA2055548C (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA3006364A1 (fr) * | 2017-05-29 | 2018-11-29 | McMillan-McGee Corp | Appareil de chauffage a induction electromagnetique |
CN112081554A (zh) * | 2020-09-22 | 2020-12-15 | 山东天汇石油技术有限公司 | 稠油无杆潜油泵井的降粘装置的使用方法 |
CN114166912B (zh) * | 2021-11-17 | 2024-02-27 | 鞍钢联众(广州)不锈钢有限公司 | 一种NOx分析气体检测器的整定方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1006596B (zh) * | 1985-12-09 | 1990-01-24 | 国际壳牌研究有限公司 | 金属外铠装的电阻加热器 |
CN1009670B (zh) * | 1985-12-09 | 1990-09-19 | 国际壳牌研究有限公司 | 高温长距离地下区间加热方法和装置 |
-
1991
- 1991-11-14 CA CA 2055548 patent/CA2055548C/fr not_active Expired - Lifetime
- 1991-12-03 CN CN91111274A patent/CN1049037C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2055548A1 (fr) | 1992-06-05 |
CN1062017A (zh) | 1992-06-17 |
CN1049037C (zh) | 2000-02-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed | ||
MKEC | Expiry (correction) |
Effective date: 20121202 |