CA1251777C - - Google Patents
Info
- Publication number
- CA1251777C CA1251777C CA 366657 CA366657A CA1251777C CA 1251777 C CA1251777 C CA 1251777C CA 366657 CA366657 CA 366657 CA 366657 A CA366657 A CA 366657A CA 1251777 C CA1251777 C CA 1251777C
- Authority
- CA
- Canada
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
- H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000555444A CA1251777A (en) | 1979-12-13 | 1987-12-24 | Apparatus and methods for line stringing with load pickup coupling device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/103,348 US4328952A (en) | 1979-12-13 | 1979-12-13 | Apparatus and methods for line stringing |
| US06/154,878 US4348009A (en) | 1980-05-30 | 1980-05-30 | Load pickup coupling device, line stringing apparatus and method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000555444A Division CA1251777A (en) | 1979-12-13 | 1987-12-24 | Apparatus and methods for line stringing with load pickup coupling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA1234092A CA1234092A (en) | 1988-03-15 |
| CA1251777C true CA1251777C (es) | 1989-03-28 |
Family
ID=26800363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000366657A Expired CA1234092A (en) | 1979-12-13 | 1980-12-12 | DEVICE AND METHODS FOR LAYING LINES WITH COUPLING MEMBERS FOR LIFTING |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0041997B1 (es) |
| CA (1) | CA1234092A (es) |
| WO (1) | WO1981001698A1 (es) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10112806B1 (en) | 2017-07-17 | 2018-10-30 | James R. Dahl | Portable hoist arm assembly |
| US10689113B2 (en) * | 2017-12-21 | 2020-06-23 | Wing Aviation Llc | Active position control of tethered hook |
| CN112531571B (zh) * | 2020-11-24 | 2021-06-11 | 国网江苏省电力有限公司扬州供电分公司 | 一种电力穿绳系统及其工作方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4006884A (en) * | 1975-09-22 | 1977-02-08 | Lederhos Donald A | Method and apparatus for aerial wire stringing through areas without vertical access |
| US4124181A (en) * | 1977-10-25 | 1978-11-07 | Kolwey Herman G | Helicopter external load pickup system |
| US4170341A (en) * | 1978-02-21 | 1979-10-09 | Jacobson Darwin J | Aircraft parcel-pickup mechanism |
| US4247084A (en) * | 1979-01-15 | 1981-01-27 | Lindsey Keith E | Stringing block threading apparatus |
| US4278237A (en) * | 1979-11-29 | 1981-07-14 | Lindsey Manufacturing Co. | Apparatus and method of threading a closed framed opening by helicopters |
-
1980
- 1980-12-10 EP EP81900179A patent/EP0041997B1/en not_active Expired
- 1980-12-10 WO PCT/US1980/001641 patent/WO1981001698A1/en active IP Right Grant
- 1980-12-12 CA CA000366657A patent/CA1234092A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA1234092A (en) | 1988-03-15 |
| EP0041997B1 (en) | 1988-05-11 |
| EP0041997A4 (en) | 1982-05-26 |
| WO1981001698A1 (en) | 1981-06-25 |
| EP0041997A1 (en) | 1981-12-23 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |