Construction system for filtering particles and...

Details Construction system for filtering particles and... Construction system for filtering particles and...

2005-08-02

2005-08-02

Nguyen, Chi Q. (Department: 3635)

Static structures (e.g., buildings)

Earth-supported coping or edging

C052S169100, C239S069000

Reexamination Certificate

active

06922952

ABSTRACT:
A construction system includes a building structure, grounds adjacent the building structure, and artificial structures in the grounds. The artificial structures includes a water system with a valve box. The valve box includes a cover. The system also includes means for dissimulating the cover, and for preventing stones and other particles from penetrating and accumulating in the box to adversely affect operation of valves in the box.

REFERENCES:
patent: 5133501 (1992-07-01), Marshall
patent: 5313677 (1994-05-01), Coe
patent: 5377447 (1995-01-01), Fritch
patent: 5584991 (1996-12-01), Wittstock et al.
patent: 5715866 (1998-02-01), Granger
patent: 6041738 (2000-03-01), Hemauer et al.
patent: 6128852 (2000-10-01), Hansen
patent: 6248411 (2001-06-01), Warfel
patent: 6290844 (2001-09-01), Tennyson, Jr.

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