Buoyancy compensator, bladder, and process of manufacture
US4561853A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1983 |
| Grant date | Dec 31, 1985 |
| Priority date | — |
| Expiry date | Apr 18, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63C9/1255
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The following specification discloses a buoyancy compensator bladder and method of manufacture therefor. The bladder has a plurality of gussets implaced therein in order to rigidify and maintain a pre-established general configuration to the bladder. A plurality of insets or pleats are implaced around the shoulder area to provide for a generally arcuate curvilinear conformation therearound. A nylon plastic coated material is used for the gussets having one side that can be bonded to the inner side of the bladder, while the other side is formed from a nylon having a higher melting temperature. The gussets that are made from the nylon coated material are folded and implaced within the bladder or cavity formed from a plurality of sheets, the combination of which is brought together and heatset by means of an RF heater, or other suitable heater. The gusset material is formed from a nylon fabric having a polyurethane coating thereon formed from a liquidous first coating with two sheets adhered thereto to form a thickened polyurethane coating over one surface thereof without completely penetrating through the interstices to the other side to the extent where it would melt and bind during…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.