Hinged and latched raceway

Abstract

A hinged duct system having a base and a cover hingedly attached to the base. The base has a bottom wall, a first sidewall and a second sidewall that define a channel therebetween. The cover has a top wall, a first end portion and a second end portion. The cover is attached to one of the sidewalls of the base by a hinge mechanism. The hinge mechanism has a hook member located at a distal end of one of the sidewalls of the base and a hook member located at one of the end portions of the cover. A flexible member is disposed along the hinge mechanism to preventing the cover from sliding with respect to the base when the cover rotates about the base.

1 .- 27 . (canceled)  
   
   
       28 . A hinged duct system comprising: 
 a base member with a bottom wall and first and second sidewalls defining a channel therebetween, the first sidewall having an edge and a distal end with a hook member, wherein the first sidewall has a protrusion extending upwardly from the edge of the sidewall; and    a cover hingedly attached to one of the sidewalls of the base member, the cover having a top wall and first and second end portions, the first end portion having a hook member for engaging the hook member of the first sidewall,    whereby when the cover rotates about the base, the protrusion limits the rotation of the cover with respect to the base.    
   
   
       29 . A hinged duct system comprising: 
 a base member with a bottom wall and first and second sidewalls defining a channel therebetween, the first sidewall having an edge, a flange that extends inwardly from the edge and a hook member extending from the flange and defining a cavity therebetween, wherein the first sidewall has a protrusion extending upwardly from the edge of the sidewall at an opening of the cavity; and    a cover hingedly attached to one of the sidewalls of the base member, the cover having a top wall and first and second end portions, the first end portion having a hook member for engaging the hook member of the first sidewall,    whereby when the cover rotates about the base, the protrusion limits the rotation of the cover with respect to the base.    
   
   
       30 . The hinged duct system of  claim 29 , wherein the protrusion prevents the cover from rotating beyond 90 degrees with respect to the base.  
   
   
       31 . The hinged duct system of  claim 29 , wherein the hook member of the cover engages the protrusion once the cover has rotated 90 degrees.  
   
   
       32 . The hinged duct system of  claim 29 , wherein the protrusion is disposed above the inwardly extending flange.