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:
Feb. 03, 1981
Filed:
Mar. 05, 1979
Applicant:
Inventor:
James N McGlashen, Winstanley near Wigan, GB;
Assignee:
Dunlop Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B / ; A63B / ;
U.S. Cl.
CPC ...
156475 ; 156213 ; 156494 ; 273 / ; 273 / ; 273 / ; 273 / ; 273 / ;
Abstract
A method and apparatus for adhesively applying cover pieces to a resilient tennis ball core. In one embodiment the exterior of the core is subjected to vacuum to expand the core while the covers, positioned in a flat orientation, are applied and adhesively secured with the vacuum then released. In another embodiment the cover pieces are cut undersize and longitudinally stretched immediately prior to their adhesive application.