The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 1978
Filed:
Jan. 24, 1977
Kenneth Bruno Sawa, Yorba Linda, CA (US);
Gordon E Mehaffy, Yorba Linda, CA (US);
Other;
Abstract
A device for inflating tennis balls having a sharpened needle which punctures the wall of the ball which needle inserts both air and a sealant material. A sharpened needle is held by a frame, the needle being hollow to permit passage of air and sealant material. A hollow conduit is affixed to the needle and a pressure sensitive member is positioned in the hollow conduit. Air and a ball sealant is pumped through the hollow conduit into the tennis ball. After all the sealant has been injected additional air is injected in an amount to cause the pressure inside the ball to exceed the desired pre-set pressure. Excess air is removed from the ball through the hollow needle and through a pressure sensitive member until the desired pre-set pressure inside the ball is attained.