PERFECT SEAL CANNING LID DEVICE AND SYSTEM

摘要

A reusable canning lid device and system for a canning container includes a plastic lid, a seal, and a band. The lid or band includes a raised portion such that the seal is not circumferentially equal in compressed communication which allows relief of pressure built up in a typical pressure canning, water bath, or vacuum sealing application. This makes it safe to the risk of overpressure and scalding. It is an important advance in the technology of canning and other applications of pressure control in thermal situations. Safety is very important to a typical canner who has limited capability to prevent explosive pressures from building up due to steam pressure expansion and high forces causing container bursts.

主权项

1. A reuseable canning lid device comprising:
a lid made of a plastic material; and at least one raised portion on said lid adapted to provide a non-equal sealing force when affixed by a fastening device to a canning container.