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:
Sep. 28, 1982
Filed:
Aug. 25, 1980
Applicant:
Inventor:
Alvin W Mueller, Ferguson, MO (US);
Assignee:
Mueller-Perry Co., Inc., St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; A63B / ; A63D / ;
U.S. Cl.
CPC ...
264 467 ; 264 466 ; 264 469 ; 264263 ; 264268 ; 2642711 ; 264D / ; 273 / ; 273 / ;
Abstract
Composite bowling pins and baseball bats are formed with foamed, cured-in place plastic bodies securely adhered to a central aluminum core by a somewhat thermoplastic adhesive coating. The exothermic reaction attendant to curing the plastic so softens the adhesive coating that it does not interfere with shrinkage of the plastic body relative to the core. This minimizes stress concentrations in the composite construction which otherwise tend to lead to cracking in use.