Plug for concrete floor penetrations

Abstract

A plug includes a conformable element and a structural cover or top plate for plugging a hole in a concrete floor slab. This permits a workman to plug the hole; unplug the hole; and, in some embodiments, fit a pipe through the hole. Moreover, the conformable element may be swapped-out on site, allowing a workman to adjust a diameter and outer surface of the plug to meet on-site conditions.

1 . A plug, comprising:
 a conformable element having a top orifice, a bottom orifice, and a tubular hole, the top orifice and the bottom orifice being connected by a sidewall of the tubular hole;   a structural top plate having a core portion, the core portion disposed inside the tubular hole; and   a locking plate having an interlocking component, the interlocking component disposed inside of the tubular hole, the interlocking component locked to the core portion.   
   
   
       2 . The plug of  claim 1 , wherein the conformable element is tapered. 
   
   
       3 . The plug of  claim 1 , wherein the conformable element has a textured outer surface. 
   
   
       4 . The plug of  claim 1 , wherein the conformable element has at least one fin. 
   
   
       5 . The plug of  claim 1 , wherein the interlocking component and the core portion form a Morse taper. 
   
   
       6 . The plug of  claim 1 , wherein the structural top plate contains a notch adapted to receive a tool. 
   
   
       7 . The plug of  claim 1 , wherein the conformable element includes a tapered lead-in. 
   
   
       8 . The plug of  claim 1 , wherein the core portion is ribbed. 
   
   
       9 . A kit for plugging a hole in a floor, the kit comprising:
 a conformable element having a top orifice, a bottom orifice, and a tubular hole, the top orifice and the bottom orifice being connected by a sidewall of the tubular hole; a structural top plate having a core portion, the core portion suitable for insertion into the tubular hole through the top orifice; and   a locking plate having an interlocking component, the interlocking component suitable for insertion into the tubular hole through the bottom orifice, wherein   the interlocking component and the core portion are adapted to connect to one another when both are inside the tubular hole.   
   
   
       10 . The kit of  claim 9 , wherein the conformable element is tapered. 
   
   
       11 . The kit of  claim 9 , wherein the conformable element has a textured outer surface. 
   
   
       12 . The kit of  claim 9 , wherein the conformable element has at least one fin. 
   
   
       13 . The plug of  claim 9 , wherein the interlocking component and the core portion form a Morse taper. 
   
   
       14 . The plug of  claim 9 , wherein the structural top plate contains a notch adapted to receive a tool. 
   
   
       15 . The plug of  claim 9 , wherein the conformable element includes a tapered lead-in. 
   
   
       16 . The plug of  claim 9 , wherein the core portion is ribbed. 
   
   
       17 - 28 . (canceled) 
   
   
       29 . A plug for stopping smoke and fire from passing through a hole in a floor, the plug adapted to allow a pipe to pass through it, the plug comprising:
 a removable upper portion having an attachment feature, the attachment feature adapted to attach to a remote tool; and   a lower portion having an outward facing surface and a lower wall, the lower wall having at least one stress ring, wherein   at least part of the lower portion forms a well adapted to receive an intumescent material and   the upper portion is removably attached to the lower portion.   
   
   
       30 . The plug of  claim 29 , further comprising fins disposed on the outward facing surface. 
   
   
       31 . The plug of  claim 29 , further comprising a tab disposed on the lower wall. 
   
   
       32 . The plug of  claim 29 , wherein the removable upper portion is substantially rigid. 
   
   
       33 . The plug of  claim 29 , wherein the well is adapted to receive an intumescent material. 
   
   
       34 . A kit containing components of a plug, the plug capable of stopping smoke and fire from passing through a hole in a floor, the plug adapted to allow a pipe to pass through it, the kit comprising:
 an upper portion having a first catch and an attachment feature, the attachment feature adapted to attach to a remote tool; and   a lower portion having a second catch, an outward facing surface, and a lower wall, wherein   the lower wall has at least one stress ring,   at least part of the lower portion forms a well, and   the first catch is adapted to substantially fit together with the second catch.   
   
   
       35 . The kit of  claim 34 , further comprising fins disposed on the outward facing surface. 
   
   
       36 . The kit of  claim 34 , further comprising a tab disposed on the lower wall. 
   
   
       37 . The kit of  claim 34 , wherein the upper portion is substantially rigid. 
   
   
       38 . The kit of  claim 34 , wherein the well is adapted to receive an intumescent material. 
   
   
       39 . A plug for stopping water from flowing through a hole, the plug comprising:
 a conformable element having an outward facing surface;   a plurality of fins disposed on the outward facing surface; and   a structural plate mounted on top of the conformable element.   
   
   
       40 . The plug of  claim 39 , wherein the fins are compliant. 
   
   
       41 . The plug of  claim 39 , wherein the plate is removable. 
   
   
       42 . The plug of  claim 39 , wherein the plate contains a notch adapted to receive a tool.