A utility cover for covering an opening includes an outer frame formed of a first material and an insert within the outer frame formed of a second material, wherein at least a portion of the insert is substantially transparent to wireless communications. A hybrid utility cover includes a first material forming an outer frame and a second material formed within the outer frame. The second material is substantially more permeable to electromagnetic waves than the first material.
申请公布号
CA2959971(A1)
申请公布日期
2016.03.10
申请号
CA20152959971
申请日期
2015.09.03
申请人
HUBBELL INCORPORATED
发明人
JOHNSON, SAMUEL THEOPHILIS;FISHER, MICHAEL EDWARD;POLK, JOHN THOMAS, III