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. 24, 1998
Filed:
Nov. 02, 1995
Applicant:
Inventor:
John Barella, Petaluma, CA (US);
Assignee:
Kristar Enterprises, Inc., Santa Rosa, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02B / ; E03F / ;
U.S. Cl.
CPC ...
405 52 ; 52 20 ; 210164 ; 404-4 ; 404 25 ; 405118 ;
Abstract
A structure for use with water drainage inlets includes an outside wall portion, a perforated bottom portion, and an inside wall portion. The outside wall, bottom, and inside wall together define a trough for retention of a replaceable filter media. The trough is installed on the inside surface of a drainage structure so that drainage water that would normally flow directly through the drainage structure is caused instead to flow through the filter media, thereby removing undesirable materials that may be carried in the water, while permitting the water itself to pass through essentially unimpeded to the ultimate drainage location.