Roof membrane and insulation removing device

Abstract

A device for stripping a waterproof rubber membrane and foam insulation from a roof. The device includes a wheeled frame having a pair of handlebars at its rear for steering by a walking attendant. A first cutting blade is secured to the front of the wheeled frame and is rotatable about a substantially vertical axis. A pair of second cutting blades is secured to the front of the wheeled frame on opposite sides of the first cutting blade. Each one of the second cutting blades is rotatable about a substantially horizontal axis. A prime mover is secured to the frame for rotating the first cutting blade and the second cutting blades.

1 . A roof membrane and insulation removing device, comprising: 
 a wheeled frame having a pair of rearwardly extending handlebars;    a first cutting blade being secured to the front of said wheeled frame and being rotatable about a substantially vertical axis;    a pair of second cutting blades being secured to the front of said wheeled frame on opposite sides of said first cutting blade, each one of said second cutting blades being rotatable about a substantially horizontal axis; and,    a prime mover being secured to said frame for rotating said first cutting blade and said second cutting blades.    
   
   
       2 . The roof membrane and insulation removing device according to  claim 1  further comprising a ramp assembly secured to the front of said wheeled frame, said ramp assembly including a plurality of lifting tines extending forwardly of said first cutting blade.  
   
   
       3 . A roof membrane and insulation removing device, comprising: 
 a wheeled frame having a pair of rearwardly extending handlebars;    a first pair of cutting blades being secured to the front of said wheeled frame, each one of said first pair of cutting blades being rotatable about a substantially vertical axis;    a second pair of cutting blades being secured to the front of said wheeled frame adjacent said first pair of cutting blades, each one of said second pair of cutting blades being rotatable about a substantially horizontal axis; and,    a prime mover being secured to said frame for simultaneously rotating said first pair of cutting blades and said second pair of cutting blades.    
   
   
       4 . The device according to  claim 3  wherein said wheeled frame includes a front portion and a rear portion capable of relative pivoting about a substantially horizontal axis, said front portion supporting said first pair of cutting blades, said second pair of cutting blades and said prime mover, said front portion having casters retaining such above the ground and said rear porting having wheels retaining such above the ground.  
   
   
       5 . The device according to  claim 3  further comprising a ramp assembly secured to said front portion of said frame, said ramp assembly including a plurality of lifting tines extending forwardly of said first cutting blade.  
   
   
       6 . A roof membrane and insulation removing device, comprising: 
 a frame having a front portion and a rear portion capable of relative pivoting motion about a substantially horizontal axis, said front portion being supported by a first pair of wheels and said rear portion being supported by a second pair of wheels,    a pair of rearwardly extending handlebars being secured to said rear portion of said frame;    a first pair of circular cutting blades being secured side-by-side to said front portion of said frame, said first pair of circular cutting blades being coplanar, and each one of said first pair of circular cutting blades being rotatable about a substantially vertical axis;    a second pair of circular cutting blades being secured to opposite sides of said front portion of said frame forwardly of said first pair of cutting blades, each one of said second pair of circular cutting blades being rotatable about a substantially horizontal axis;    a first hydraulic motor being secured to said rear portion of said frame for rotating said second pair of wheels;    a second hydraulic motor being secured to said front portion of said frame for rotating said first pair of circular cutting blades; and,    a second hydraulic motor being secured to said front portion of said frame for rotating said second pair of circular cutting blades.    
   
   
       7 . The roof membrane and insulation removing device according to  claim 6  further comprising a ramp assembly secured to the front of said wheeled frame, said ramp assembly including a plurality of lifting tines extending forwardly of said first cutting blade.