Gliding doorstop

Abstract

A gliding doorstop having a substantially sinusoidal cross sectional shape, with a central trough configured to accept the bottom of a door and two curved ends configured to slide along a floor. The gliding doorstop is configured to retain the door in a set position against routine amounts of environmental forces, but be slideable such that the door can be manually moved by a user into a new set position without removing the gliding doorstop from underneath the door.

What is claimed is: 
     
         1 . A gliding doorstop, comprising:
 a body member having a cross section with a substantially sinusoidal shape, the body member having a first end, a first hump, a central trough, a second hump, and a second end,   wherein an upper surface of said central trough is shaped to accept the bottom of a door when bottom surfaces of said first end and said second end are in contact with a floor below the door.   
     
     
         2 . The gliding doorstop of  claim 1 , wherein:
 said first end and said second end are at global minimums of said substantially sinusoidal shape,   said first hump and said second hump are at global maximums of said substantially sinusoidal shape, and   said central trough is at a local minimum of said substantially sinusoidal shape.   
     
     
         3 . The gliding doorstop of  claim 2 , wherein said first end and said second end are curved such that said global minimums are configured to contact the floor when said central trough accepts the bottom of a door, and contact of said first end and said second end at said global minimums against the floor provides frictional resistance to horizontally moving said body member sufficient to hold said body member in a set position until a user manually overcomes said frictional resistance to horizontally move said body member. 
     
     
         4 . The gliding doorstop of  claim 2 , wherein said first end and said second end each have a lip at least partially raised relative to said global minimums. 
     
     
         5 . The gliding doorstop of  claim 1 , wherein said body member comprises a resilient material such that said body member is configured to flex to lower said central trough relative to said first end and said second end during installation of said body member between a door and a floor, and thereafter provide pressure against the door and the floor while the body member is in place between the door and the floor. 
     
     
         6 . The gliding doorstop of  claim 1 , wherein a plurality of grooves at least partially extends through an upper surface of said central trough, said plurality of grooves being arranged such that bottom corners of a door can be notched into selected grooves within said plurality of grooves. 
     
     
         7 . The gliding doorstop of  claim 1 , wherein said body member has opposing parallel edges that each run orthogonally to said first end and said second end. 
     
     
         8 . The gliding doorstop of  claim 1 , wherein said body member has a first edge running orthogonal to said first end and said second end, and an opposing second edge running at an angle between said first end and said second end.