System for assembling and disassembling a mast
US4942537A · kind A · utility
7Cited by
9References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 15, 1988 |
| Grant date | Jul 17, 1990 |
| Priority date | — |
| Expiry date | Dec 15, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H12/34
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for assembling or disassembling a mast comprising a plurality elongate mast sections adapted to be attached together in end-to-end configuration. The apparatus includes a lifting assembly for raising or lowering the mast from its bottom end, and a plurality of winches for reeling in or feeding out guy lines attached to the mast. The apparatus also includes a computer for controlling the operation of the winches so as to ensure the length of guy line fed out of the winches is such that the mast is supported in a substantially vertical position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.