The Continental Group, Inc.

James J Fridl

Gary K Hasegawa

Robert D Payne

Donald R Richardson

Wesley J Szpitalak

Heinz W Nonnemann

This relates to the provision of a vacuum indicator in a container wherein a product is vacuum packaged. Most specifically, an end unit for a conventional container is provided with a vent opening through which air rushes into the container when opened. There is secured to the underside of the end unit a whistle device in communication with the opening so that the inwardly rushing air actuates the whistle device and causes the whistle device to emit a whistling sound in accordance with the vacuum present within the container and thereby gives an audible indication of the freshness of the product.

Acoustic indicator of vacuum level in containers

Pull tab for a tear strip opener

This disclosure relates to an easy opening container which includes a pull tab or strip which is formed of a plastics material having a memory and wherein the pull tab is so constructed that after it has been utilized to remove a panel portion, the memory automatically moves the tab and the removed panel portion to an out-of-the-way position and holds the same in such a position, thereby not in any way interfering with the dispensing operation and while at the same time remaining attached to the container.

Plastic pull tab with memory

Growing community of inventors

Darien, IL, United States of America

James J Fridl