초록 ▼

A coupling system that can be placed into the existing drain and over the existing drain pipe to effect a repair without removal of an existing tub, shower or similar receptacle. The drain coupling system is self-sealing and can be locked into place from above. After ensuring that the proper seal is

A coupling system that can be placed into the existing drain and over the existing drain pipe to effect a repair without removal of an existing tub, shower or similar receptacle. The drain coupling system is self-sealing and can be locked into place from above. After ensuring that the proper seal is obtained between the invention and the drain pipe, the body of the invention is pushed downward until the upper collar lip engages the floor surrounding the drain opening. The system is then secured in position from above by the plurality of hex head set screws provided. The hex head set screws extend downward from the upper most surface of the invention. The coupling system is supplied with locking tabs. When the present invention is in the proper position within the drain opening, the rotation of the screws forces the wings of the locking tabs to rotate in a lateral fashion. The rotation of the locking tab continues until the wings contact the walls of the drain opening. The contact between the locking tabs and the drain walls serves to securely hold the invention in the proper orientation within the drain hole.

대표청구항 ▼

[What is claimed is:] [7.]a lower collar assembly for placement through said drain hole and about said drain pipe;an upper collar assembly having flange section larger than said drain hole;a means of sealing said upper collar assembly to said lower collar assembly about said drain pipe;at least two

[What is claimed is:] [7.]a lower collar assembly for placement through said drain hole and about said drain pipe;an upper collar assembly having flange section larger than said drain hole;a means of sealing said upper collar assembly to said lower collar assembly about said drain pipe;at least two or more tabs pivotally attached to the outside of said lower collar assembly along an axis parallel to said drain pipe; anda fastener means for connecting said upper collar assembly to said lower collar assembly and for rotationally engaging said tabs thereby the rotation of said fasteners means engages and moves sail tabs in an outward fashion such that said repair apparatus is held in a desired position within said drain hole by said tabs.