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. 07, 1989
Filed:
Dec. 17, 1985
Applicant:
Inventor:
William D Corbett, Fond du Lac, WI (US);
Assignee:
Brunswick Corporation, Skokie, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C / ;
U.S. Cl.
CPC ...
123 / ; 123 / ; 164 45 ; 164235 ;
Abstract
A polystyrene foam pattern (10) is provided for the cylinder block of a crankcase compression two-cycle engine having transfer passages (15) formed in the block. The pattern includes a head-end component (12) and a crankcase end component (11) mating with each other. The mating surfaces extend through the transfer ports (14), transfer passages (15), and exhaust ports (16) to allow the formation of complex passages with die cast pattern components.