Hydraulic and earth engineering – Foundation
Reexamination Certificate
2006-04-11
2006-04-11
Safavi, Michael (Department: 3673)
Hydraulic and earth engineering
Foundation
C052S741150
Reexamination Certificate
active
07025537
ABSTRACT:
One embodiment of the present invention provides for a subterranean structure, having a continuous ribbon slab having a plurality of flights fabricated from concrete. The ribbon slab defines periodic openings therein which generally align between adjacent flights. Another embodiment provides for a method of fabricating a subterranean structure. The method includes excavating soil to form a downward sloping ramp, and forming a concrete slab on the downward sloping ramp. The method further includes continuing to excavate soil to extend the downward sloping ramp to a location under the concrete slab, and continuing to form the concrete slab on the downward sloping ramp so that a subterranean structure is formed having an essentially continuous concrete slab with a first portion which is above and spaced-apart from a second portion.
REFERENCES:
patent: 2164003 (1939-06-01), Scheelhasse
patent: 3563044 (1971-02-01), Gerwick, Jr.
patent: 3712071 (1973-01-01), Cunningham
patent: 3975053 (1976-08-01), Kochanowsky
patent: 4147452 (1979-04-01), Ogasawara et al.
patent: 4973197 (1990-11-01), Dallimer et al.
patent: 5011331 (1991-04-01), Clavarino
patent: 5046910 (1991-09-01), Tokuhiro et al.
patent: 5474399 (1995-12-01), Chia-Hsiung
patent: 5522676 (1996-06-01), Gryba
patent: 5775043 (1998-07-01), Muroi
patent: 5832680 (1998-11-01), Muroi
patent: 6220789 (2001-04-01), White
patent: 6234720 (2001-05-01), Queen et al.
patent: 6299386 (2001-10-01), Byrne et al.
patent: 03013691 (1991-01-01), None
patent: 03017311 (1991-01-01), None
patent: 04049324 (1992-02-01), None
Russell Matthew F.
Russell Robert L.
Reid John S.
Reidlaw, L.L.C.
Safavi Michael
Spahn Gay Ann
LandOfFree
Subterranean structures and methods for constructing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Subterranean structures and methods for constructing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Subterranean structures and methods for constructing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3618999