Static structures (e.g. – buildings) – With means for split-prevention or damaged part repair – Using settable material
Reexamination Certificate
2006-09-26
2010-12-07
Chapman, Jeanette (Department: 3633)
Static structures (e.g., buildings)
With means for split-prevention or damaged part repair
Using settable material
C052S127300, C052S396020, C052S396050, C052S309140, C052S742140, C052S393000, C249S033000, C404S047000, C404S055000
Reexamination Certificate
active
07845131
ABSTRACT:
A crack inducer controls propagation of cracks in set concrete containing reinforcing bars. The crack inducer has an elongated, rigid core that is relatively narrow in a direction that is parallel to outer surfaces of the concrete. The core has a core width in a first plane that intersects the outer surfaces of the volume, that is at least 20% of the concrete volume width so that a crack in the volume of concrete is induced to propagate from the core and along the first plane. A plurality of spaced cross-plates are connected to the core and a water-stop may be included around part of the core.
REFERENCES:
patent: 1089943 (1914-03-01), Morse et al.
patent: 2167904 (1939-08-01), Older
patent: 3411260 (1968-11-01), Dill
patent: 4090800 (1978-05-01), Koch
patent: 5918428 (1999-07-01), Hough
Chapman Jeanette
Engineered Devices Corporation
Notaro, Michalos & Zaccaria P.C.
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