A detectable warning plate having integrally cast lugs. The lugs may extend from the undersurface of the plate so that they can be entrapped within concrete during installation. The plate may define a vent hole through the plate above each lug to permit air to escape from beneath the dome plate during installation. The plate may include one or more integral support ribs that extend downwardly from the plate. The support ribs may extend around the plate near the periphery. The lugs may be extensions of the support ribs.
申请公布号
US2007201949(A1)
申请公布日期
2007.08.30
申请号
US20060363068
申请日期
2006.02.27
申请人
EAST JORDAN IRON WORKS, INC.
发明人
VELDBOOM LEA M.;SNYDOR JOHN H.;HOLT KORMNA M.;WEBB DENNIS E.;JOHNSON JEREMY;LOVISKA TODD C.;RACHWNZ BRIAN J.;BEAL SCOTT B.