Substantially rigid collapsible liner and flexible gusseted or non-gusseted liners and methods of manufacturing the same and methods for limiting choke-off in liners

US9522773B2 · kind B2 · utility

Assignee

• ENTEGRIS, INC. · US

Inventors

• Glenn M. Tom · New Milford, US
• Thomas H. Baum · New Fairfield, US
• Matthew Kusz · Minneapolis, US
• Joseph P. Menning · Prior Lake, US
• Greg Nelson · Minneapolis, US
• Dongyun Lee · Cheonan-si, KR
• Wei Liu · Austin, US
• Kanghyun Kim · Bogae-myeon, KR
• Karl E. Boggs · Hopewell Junction, US
• Richard Chism · Round Rock, US

Key dates

• Filing date: Jul 9, 2010
• Grant date: Dec 20, 2016
• Expiry date: Nov 15, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65D2231/008
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

The present disclosure relates to a blow-molded, rigid collapsible liner that can be suitable particularly for smaller storage and dispensing systems. The rigid collapsible liner may be a stand-alone liner, e.g., used without an outer container, and may be dispensed from a fixed pressure dispensing can. Folds in the rigid collapsible liner may be substantially eliminated, thereby substantially reducing or eliminating the problems associated with pinholes, weld tears, and overflow. The present disclosure also relates to flexible gusseted or non-gusseted liners, which is scalable in size and may be used for storage of up to 200 L or more. The flexible gusseted liner may be foldable, such that the liner can be introduced into a dispensing can. The liner can be made of thicker materials, substantially reducing or eliminating the problems associated pinholes, and may include more robust welds, substantially reducing or eliminating the problems associated weld tears.