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. 10, 1987
Filed:
Oct. 15, 1985
Applicant:
Inventor:
Walter B Hahne, Corona Del Mar, CA (US);
Assignee:
Associated Concrete Products, Santa Ana, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01C / ; E01F / ;
U.S. Cl.
CPC ...
404-4 ; 404-6 ; 249145 ;
Abstract
A roadway barrier section includes a duct formed of two intersecting frusto-conical portions placed end-to-end so that the central portion thereof. The duct is formed using two tapering mold plugs that are preferably frusto-conical. The mold plugs are placed in a concrete form so that the lower edge of the duct is a straight line that is generally parallel to the base of the barrier section.