Telescopic mast
US4309854A · kind A · utility
15Cited by
9References
19Claims
0Family size
Inventor
Key dates
| Filing date | Oct 15, 1979 |
| Grant date | Jan 12, 1982 |
| Priority date | — |
| Expiry date | Oct 15, 1999 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H12/20
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A telescopic mast having a plurality of elements comprising the mast wherein the elements are slidably arranged in relation to each other, together with cables for the erection of the mast, wherein the cables are before the erection of the mast connected to all of the elements and the erection of the mast is carried out by a successive sliding of each element on the element therebelow, further including provision for separating the cables of each element after the end of the hoisting operation of that element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.