Portable fluid containment pad

Abstract

A portable fluid containment pad, which includes a pan having in interior fluid containment cavity with a bottom, opposed sides, and opposed ends. At least two structural load bearing beams are provided which rest upon the bottom of the pan and extend between the opposed ends in parallel spaced relation to the opposed sides and to each other. The maximum span between the at least two structural load bearing beams being less than three feet. A rigid substrate is supported on a substantially horizontal plane by the at least two structural load bearing beams.

1 . A portable fluid containment pad, comprising: 
 a pan having an interior fluid containment cavity with a bottom, opposed sides, and opposed ends;    at least two structural load bearing beams which rest upon the bottom of the pan and extend between the opposed ends in parallel spaced relation to the opposed sides and to each other, the maximum span between the at least two structural load bearing beams being less than three feet;    a rigid substrate supported on a substantially horizontal plane by the at least two structural load bearing beams.    
   
   
       2 . The portable fluid containment pad as defined in  claim 1 , wherein the at least two structural load bearing beams are “I” beams.  
   
   
       3 . The portable fluid containment pad as defined in  claim 1 , wherein there is a first structural load bearing beam positioned along a first of the opposed sides, a second structural load bearing beam positioned along a second of the opposed sides and a central structural load bearing beam which is centrally positioned between the opposed sides.  
   
   
       4 . The portable fluid containment pad as defined in  claim 1 , wherein there are a plurality of transverse beams which and extend between the opposed sides in parallel spaced relation to the opposed ends and to each other, the maximum span between the transverse beams being less than three feet.  
   
   
       5 . The portable fluid containment pad as defined in  claim 1 , wherein there are fluid containing appendages which extend upwardly and outwardly from each of the opposed sides of the pan adjacent to the bottom and terminate at the substantially horizontal plane, the rigid substrate extending past the opposed sides to cover the appendages.  
   
   
       6 . The portable fluid containment pad as defined in  claim 1 , wherein the rigid substrate is grating.  
   
   
       7 . The portable fluid containment pad as defined in  claim 5 , wherein the appendages have interlocking profiles adapted to enable adjacent pans to be connected in side by side relation while maintaining fluid containment to prevent leakage between the adjacent pans.  
   
   
       8 . The portable fluid containment pad as defined in  claim 7 , wherein a first appendage on a first side of the pan has a projecting lip which extends between the opposed ends and a second appendage on a second side of the pan has a recess which extends between the opposed ends, the lip engaging the recess.  
   
   
       9 . The portable fluid containment pad as defined in  claim 2 , wherein each of the at least two structural beams has a plurality of transverse drainage passages to accommodate fluid flow.  
   
   
       10 . The portable fluid containment pad as defined in  claim 4 , wherein there are gaps below each of the transverse beams to accommodate fluid flow along the bottom of the pan.  
   
   
       11 . The portable fluid containment pad as defined in  claim 1 , wherein at least two pans are positioned adjacent to each other.  
   
   
       12 . The portable fluid containment pad as defined in  claim 11 , wherein a bridge plate bridges between adjacent pans, the bridge plate having a depending tongue which extends downwardly between the adjacent pans to limit movement of the bridge plate.  
   
   
       13 . The portable fluid containment pad as defined in  claim 12 , wherein the bridge plate has a spine with two diverging downwardly inclined ramp surfaces.  
   
   
       14 . The portable fluid containment pad as defined in  claim 1 , wherein the pan has fittings with hose couplings, such that the pan can rapidly be adapted to be in fluid communication with another pan by connecting hoses to the hose couplings.  
   
   
       15 . A portable fluid containment pad, comprising: 
 a pan having an interior fluid containment cavity with a bottom, a first side, a second side, and opposed ends;    structural load bearing “I” beams which rest upon the bottom of the pan and extend between the opposed ends in parallel spaced relation to the first side and the second side and to each other, including a first structural load bearing beam positioned along the first side, a second structural load bearing beam positioned along the second side and at least one central structural load bearing beam positioned between the first structural load bearing beam and the second structural load bearing beam, the maximum span between each of the structural load bearing “I” beams being less than three feet, and each of the structural load bearing “I” beams having a plurality of transverse drainage passages to accommodate fluid flow;    a plurality of transverse “I” beams which extend between the first side and the second side in parallel spaced relation to the opposed ends and to each other, the maximum span between the transverse “I” beams being less than three feet, gaps being provided below each of the transverse beams to accommodate fluid flow along the bottom of the pan;    a rigid grating substrate supported on a substantially horizontal plane by the structural load bearing “I” beams;    a fluid containing first appendage on the first side and a fluid containing second appendage on the second side, each of the first appendage and the second appendage extending upwardly and outwardly from the first side and the second side of the pan, respectively, adjacent to the bottom and terminating at the substantially horizontal plane, the rigid substrate extending past the first side and the second side to cover the first appendage and the second appendage, respectively, the first appendage on the first side of the pan having a projecting lip which extends between the opposed ends and the second appendage on the second side of the pan having a recess which extends between the opposed ends, the lip engaging the recess to enable adjacent pans to be connected in side by side relation while maintaining fluid containment to prevent leakage between the adjacent pans; and    fittings with hose couplings in the pan, such that the pan can rapidly be adapted to be in fluid communication with another pan by connecting hoses to the hose couplings.    
   
   
       16 . The portable fluid containment pad as defined in  claim 15 , wherein pans are coupled in side by side relation, the projecting lip on the first appendage of one pan engaging the recess on the second appendage of another pan.  
   
   
       17 . The portable fluid containment pad as defined in  claim 15 , wherein pans are provided in end to end relation, a bridge plate bridging a gap between the pans, the bridge plate having a depending tongue which extends downwardly into the gap between the pans to limit movement of the bridge plate.  
   
   
       18 . The portable fluid containment pad as defined in  claim 17 , wherein the bridge plate has a spine with two diverging downwardly inclined ramp surfaces.