发明名称 Extendable sleeve for poured concrete deck
摘要 A tubular passage for poured concrete decks has an intumescent tube held in a two-part, clamshell base by a bottom clip. A first tube engages the base's top to clamp a funnel shaped, diaphragm seal to the base. The first tube has spaced, radially extending, parallel ridges at predetermined distances from the base. Longitudinal channels separate the ridges. An extension tube has inward extending lugs passing along the channels to engage various ridges when rotated to fix the passage length. The extension engages the base bottom for corrugated deck supports. A cap with repositionable, locating filaments closes either tube.
申请公布号 US9388570(B2) 申请公布日期 2016.07.12
申请号 US201414484747 申请日期 2014.09.12
申请人 Securus, Inc. 发明人 Brown Larry D.;O'Neil Virgil;McConnell Timothy M.;Hart Dennis L.;Price Darrell W.
分类号 E04C2/52;E04B1/94;F16L5/02;E04G15/06;H02G3/22;A62C2/06;F16L5/04;H02G3/04 主分类号 E04C2/52
代理机构 Stetina Brunda Garred & Brucker 代理人 Stetina Brunda Garred & Brucker ;Anderson Lowell
主权项 1. A kit for forming a tubular passage through a poured concrete deck, comprising: a base assembly having a base formed of two opposing housing portions fastened together to form a housing having a cylindrical sidewall portion extending along a longitudinal axis and containing a tubular cylinder of intumescent material adjacent the cylindrical sidewall portion, the tubular cylinder of intumescent material encircling the longitudinal axis and having its motion limited in a first direction along the axis by the housing and having movement in an opposing direction along the axis limited by a clip engaging the housing; a flexible diaphragm seal having a central opening selected to seal against a range of pipe diameters during use, the seal having a funnel portion between an outer periphery and the central opening, wherein the funnel shape includes a sidewall forming the central opening which sidewall is curved in cross-section toward the longitudinal axis and forms a circle of revolution; and a first cylindrical tube configured to fasten to a top of the base assembly during use and encircle the longitudinal axis during use, the first tube and base being configured to clamp a periphery of the flexible diaphragm between them sufficiently to form a fluid tight seal.
地址 Poway CA US