Icebreaking vessels
US3934529A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1974 |
| Grant date | Jan 27, 1976 |
| Priority date | — |
| Expiry date | Oct 30, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B35/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A procedure and a novel vessel are provided for breaking ice. The procedure comprises the cyclical steps of firstly pretensioning an ice-sheet by plowing under a portion of the ice-sheet with the bow of an icebreaking vessel; secondly superimposing on that pretensioned ice-sheet, a massive momentum force due to the reaction of an impulse force due to accelerating water rapidly downwardly from within a bow chamber; and finally refilling the bow chamber with water. Preferably the impulse force is created by the high pressure exhaust gases from a combustion chamber, e.g. an explosive combustion chamber being applied directly to the water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.