Anchor

Abstract

An anchor for embedding into a concrete slab and to which fittings may be secured. The anchor has a housing with an access opening and a base opening, a cover adapted to normally close off the base opening, a fastener carriage, a fastener held by the carriage, a carriage support and a cap. The fastener carriage, fastener, cap and carriage support may rotate as a unit relative to the housing and the fastener may move across the housing.

1 . An anchor for imbedding into a concrete slab and to which fittings may be secured, the anchor having: 
 a housing with an access opening and a base opening;    a cover adapted to normally close off the base opening of the housing;    a fastener carriage;    a fastener held by the carriage;    a carriage support and a cap whereby the fastener carriage, the fastener, the cap and the carriage support may rotate as a unit relative to the housing and in addition the fastener and the fastener carriage may be free to move across the housing.    
     
     
         2 . The anchor of  claim 1  wherein the housing is cylindrical in shape.  
     
     
         3 . The anchor of  claim 1  wherein the housing has an access opening spaced from a base opening to the housing.  
     
     
         4 . The anchor of  claim 3  wherein the access opening is provided by a return wall projecting inwardly of a peripheral wall of the housing.  
     
     
         5 . The anchor of  claim 1  having at least one anchor portion projecting outwardly of the housing.  
     
     
         6 . The anchor of  claim 3  the cover which normally seals off the base opening comprises a plug received within the base opening.  
     
     
         7 . The anchor of  claim 1  wherein the cap within the housing is adjacent to the access opening.  
     
     
         8 . The anchor of  claim 7  wherein the cap has a lip which locates relative to an edge of the underside of the access opening.  
     
     
         9 . The anchor of  claim 7  or  8  wherein the cap has a slot extending part way across it.  
     
     
         10 . The anchor of  claim 9  wherein the slot in the cap has accurate ends.  
     
     
         11 . The anchor of  claim 7  including the carriage support is provided by opposed spaced flanges extending outwardly from an underside of the cap.  
     
     
         12 . The anchor of  claim 11  including grooves on the underside of the cap and extending between the opposed flanges.  
     
     
         13 . The anchor of  claim 1  wherein the fastener carriage has opposed spaced legs between which the fastener is received and held against rotation relative to the fastener carriage.  
     
     
         14 . The anchor of  claim 13  wherein the fastener carriage has an upper surface with grooves.  
     
     
         15 . The anchor of  claim 14  including an aperture through the upper surface of the fastener carriage.