Methods and systems to maintain accessibility and integrity...

Details Methods and systems to maintain accessibility and integrity... Methods and systems to maintain accessibility and integrity...

2010-07-16

2011-12-27

Lagman, Frederick L (Department: 3672)

Hydraulic and earth engineering

Drainage or irrigation

Including subsurface moisture barrier

C405S036000, C137S366000, C137S363000

Reexamination Certificate

active

08083436

ABSTRACT:
Disclosed herein are methods, devices and systems to maintain the accessibility and integrity of equipment contained in underground housings. The methods, devices and systems and methods of the present invention maintain the accessibility and integrity of equipment contained in underground housings by providing at least one barrier that prevents burrowing animals from off-loading displaced ground dirt or other debris into the space created by the underground housing.

REFERENCES:
patent: 3542059 (1970-11-01), Blanchard et al.
patent: 4669305 (1987-06-01), Rivero-Olmedo
patent: 4809548 (1989-03-01), Rivero-Olmedo
patent: 5823577 (1998-10-01), Johnston
patent: 6899240 (2005-05-01), Dang
patent: 6932099 (2005-08-01), Mahaney
patent: 7004677 (2006-02-01), Ericksen
patent: 7780374 (2010-08-01), Keeney
Armor Access Boxes—Turf Irrigation Boxes, Underhill International, http://www.ulcorp.net/ArmTurJimbo.htm, Sep. 15, 2004.

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