Membrane-type inflation nozzle
US6019122A · kind A · utility
Inventor
Key dates
| Filing date | Feb 8, 1999 |
| Grant date | Feb 1, 2000 |
| Priority date | — |
| Expiry date | Feb 8, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7882
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A membrane-type inflation nozzle applicable to an inflatable envelope. A release sheet is disposed between two nozzle membranes at an opening of the nozzle. An adhesive material is disposed between inner membrane walls of the opening of the nozzle. One end of the release sheet is positioned between the adhesive material and the other membrane wall. The other end of the release sheet extends out of the opening. When inflating the envelope, the release sheet is torn away from the nozzle opening and then the envelope is fully inflated. Therefore, an internal pressure of the envelope makes the nozzle self-close. In addition, the adhesive material at the nozzle opening is able to adhere corresponding inner membrane walls to each other so as to achieve a more tightly air-sealing effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.