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:
Mar. 23, 2010
Filed:
Dec. 27, 2006
Matthew A. Wassman, Hudson, WI (US);
Julian P. Trangsrud, Northfield, MN (US);
Richard M. Odland, Chisago City, MN (US);
Matthew A. Wassman, Hudson, WI (US);
Julian P. Trangsrud, Northfield, MN (US);
Richard M. Odland, Chisago City, MN (US);
Royal Concrete Pipe, Inc., Stacy, MN (US);
Abstract
A temporary culvert barrier for placing across the mouth of a culvert for blocking litter and debris from entering or exiting the culvert and for filters to block silt or sand from clogging the culvert or the drain area. The filters may also be selected to absorb oils salts or other chemicals. The temporary barrier is easy to install and remove. The barrier plates and filters fit to the size of the culvert mouth and have adjustment slots for different width mouths. The culvert barrier may be used to prevent pollution at construction sites and be temporarily or permanently attached to culvert mouths. The filters may be changed or cleaned as required.