Bag with reinforcing features

US9132938B2 · kind B2 · utility

Assignee

• THE GLAD PRODUCTS COMPANY · US

Inventors

• Edward B. Tucker · Romeoville, US
• David J. Hoying · Cincinnati, US
• Matthew W. Waldron · Hamilton, US
• Kyle R. Wilcoxen · Des Plaines, US
• Ryan J. Coonce · Elmhurst, US

Key dates

• Filing date: Nov 9, 2011
• Grant date: Sep 15, 2015
• Expiry date: Jan 22, 2033

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65F1/002
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A plastic bag with flexible sidewalls defining an interior volume for holding contents includes a reinforcing feature to resist puncture and/or rupture of the bag. The reinforcing feature may include reinforcing the portion of the bag proximate the bottom edge with additional or thicker thermoplastic material. In various embodiments, the reinforcing feature may be a multilayer strip of plastic material attached along a bottom edge of the bag, either internally or externally, to provide additional material resistant to puncture. The reinforcing feature may be adhesively bonded, heat bonded, or cold bonded to the bag sidewalls. In other embodiments, the sheet material used to produce the bag may be made with varying thicknesses. In addition, methods of manufacturing a bag with such reinforcing features in a high speed automated process are disclosed.