1 Sewers in Raymond, SD Directory

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David Woodring Raymond, SD

Sewer

United States Patent	Inventor	Appl. No.	Assignee
#8413687 Apr 9, 2013 Filed: Mar 23, 2011	David W. Woodring (Raymond, SD) David W. Woodring (Raymond, SD)	13/069448
International Classification:	F16L 53/00, E04D 13/14	U.S. Classification:	138 27, 138 89, 52219, 52199, 52 58, 285 42

United States Patent

Inventor

Appl. No.

Assignee

#8413687 Apr 9, 2013

Filed: Mar 23, 2011

David W. Woodring (Raymond, SD)
David W. Woodring (Raymond, SD)

13/069448

International Classification:

F16L 53/00, E04D 13/14

U.S. Classification:

138 27, 138 89, 52219, 52199, 52 58, 285 42

Patent:

Insulated sewer vent cover

Abstract:

An insulated sewer vent cover designed to passively prevent ice blockage, comprises a sealed...