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2. Hermetic seal - Wikipedia

   en.wikipedia.org/wiki/Hermetic_seal

   A hermetic seal is any type of sealing that makes a given object airtight (preventing the passage of air, oxygen, or other gases).The term originally applied to airtight glass containers but, as technology advanced, it applied to a larger category of materials, including metals, rubber, and plastics.

3. Kilner jar - Wikipedia

   en.wikipedia.org/wiki/Kilner_jar

   Kilner jar with rubber seal. A Kilner jar is a rubber-sealed, glass jar used for preserving food. It was first produced in 1900 by John Kilner & Co., Yorkshire ...

4. Weck jar - Wikipedia

   en.wikipedia.org/wiki/Weck_jar

   The jars were invented and patented by Rudolph Rempel. Johann Carl Weck purchased the patent from Rempel, and in 1900 Weck and his best salesman George Van Eyck founded the J. WECK Company in Germany. In 1902, Weck left the company, Van Eyck continued to improve the design and function of the jar, and started exporting the jars outside of Germany.

5. Ground glass joint - Wikipedia

   en.wikipedia.org/wiki/Ground_glass_joint

   Crude versions of conically tapered ground glass joints have been made for quite a while, [1] particularly for stoppers for glass bottles and retorts. [2] Crude glass joints could still be made to seal well by grinding the two parts of a joint against each other using an abrasive grit, but this led to variations between joints and they would not seal well if mated to a different joint.

6. Mason jar - Wikipedia

   en.wikipedia.org/wiki/Mason_jar

   John Landis Mason, inventor of the Mason jar. In 1858, a Vineland, New Jersey tinsmith named John Landis Mason (1832–1902) invented and patented a screw threaded glass jar or bottle that became known as the Mason jar (U.S. Patent No. 22,186.) [1] [2] From 1857, when it was first patented, to the present, Mason jars have had hundreds of variations in shape and cap design. [8]

7. These Are the Easiest Ways to Open a Jar When It's Stuck - AOL

   www.aol.com/easiest-ways-open-jar-stuck...

   Place the jar on the counter and try easing the tip of a butter knife between the jar and the lid. This will create a wedge to help pop the seal. Once it's in there, give the lid a twist to help ...