Method of making a containment bag
US4622027A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 1984 |
| Grant date | Nov 11, 1986 |
| Priority date | — |
| Expiry date | Nov 23, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S493/926
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for making a capture and containment bag having a large reservoir that tapers into an elongated conduit wherein the reservoir is formed by joining two heat sealable panels along their side edges to form a linear end edge and then joining such linear end edge to the flared end of a narrow heat sealable strip with a pair of longitudinally extending side edges of such narrow strip then joined to form a conduit. The two panels are then joined along the remaining side edges as a continuation of the joining of the sides of the narrow strip to form a bag with a large storage reservoir and a narrow elongated discharge control conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.