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Federighi applied for a second

patent on March 30, 1964 and

this time it was called "Cork

Ejector with Pressurized

Liquid Propellant." He cites

his prior invention with "…it

has been found that in some

instances the corks are dry

and porous, and the gas

would escape upwardly

through the corks without

lifting the corks out of the

bottles." He resolves this by

creating great force "to assure

the cork in being blown out by a sudden thrust or impact

without breaking the bottle." The actual instance is that the

liquid propellant in the container changes from liquid to gas as it

expands by "as much as 260 times."

Although it is not part of his claims, Federighi also made a very

important change from the first patent to the second - he made the needle easily

replaceable by grasping the knurled end on the needle connection and by adding a male

thread to the needle connection and a female thread to the cylinder base. The second

patent was granted July 6, 1965 (No. 3,192,803).

Stero Chemical also offered a recharger for the

Cork Pops capsules, which would refill

approximately 60 capsules. Prior to filling the

capsule is chilled. A warm capsule "may prevent

free flow of propellant into the capsule. To fill,

the nipple is inserted into the top of the

recharger for ten seconds. When it is removed,

it is armed and ready to open more bottles!"

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