Underwater jacket
US4778425A · kind A · utility
Inventor
Key dates
| Filing date | Jun 23, 1987 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | Jun 23, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63C11/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
There is disclosed an underwater jacket including an outside waterproof cloth and an inside waterproof cloth, said outside and inside cloths being put one upon the other and connected together at their marginal edges by sewing to form a jacket body into which air can be injected. The outside and inside cloths are partially connected to each other by high-frequency welding at a portion or portions where the cloths are to be folded or curved during use. At least one hole is formed through the outside and inside cloths at the portion, and a bolt made of plastic material is passed through the hole, while a nut made of plastic material is fitted to a protruding end of the bolt on the other side of the cloths. Packings are interposed between the bolt and nut and the outside and inside cloths, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.