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Last Updated: April 19, 2024

Patent: RE31811


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Summary for Patent: RE31811
Title: Baseball bat with modified internal air pressure
Abstract:An aluminum baseball bat with plug of solid rubber or similar material at one end thereof and a knob at the other end is disclosed. The rubber end plug is sealed in place in a leak-proof junction to define a hollow interior space. By inserting a needle through the end plug, fluid communication between a source of air or other gas which is pressurized either above or below atmospheric pressure and the interior of the bat space can be provided to achieve a desired pressure therewithin. Once the desired interior pressure has been achieved, the needle is withdrawn and the natural resiliency of the rubber acts to immediately seal the puncture to thereby permanently maintain the desired interior pressure conditions.
Inventor(s): Foreman; Ronald (Narberth, PA)
Assignee:
Application Number:06/291,563
Patent Claims:see list of patent claims

Details for Patent RE31811

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Emergent Biosolutions Canada Inc. BAT botulism antitoxin heptavalent (a, b, c, d, e, f, g) - (equine) Solution 125462 03/22/2013 ⤷  Try a Trial 2040-01-29
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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