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:
Dec. 04, 1990
Filed:
Sep. 01, 1989
Applicant:
Inventor:
Jon D Meriwether, Follansbee, WV (US);
Assignee:
The Louis Berkman Company, Follansbee, WV (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63B / ;
U.S. Cl.
CPC ...
114267 ; 114357 ; 405219 ;
Abstract
An improved polyethylene float drum for marine structures has a preformed polystyrene core which is configured to dimensionally conform to the interior surfaces of the polyethylene walls of the drum. Because the preformed core fills the entire enclosure of the float drum, a dimensionally controlled float drum is provided with superior strength characteristics.