Universal socket for a finial and finial incorporating such a socket

A finial adapted for mounting on a window covering support rod of the type including a first tube and a second tube, the first tube being slidably received in the second tube, the finial comprising:

• an end portion for covering an end of the first or the second tube;
• a socket portion coupled to the end portion for supporting the finial on the first or the second tube, the socket portion including a first engagement surface configured to enter into the first tube and to contact at least a portion of the first tube to retain the socket on the first tube and a second engagement surface configured to at least partially surround the second tube and to contact the second tube to retain the socket on the second tube, wherein the first engagement surface is tapered in first a direction to engage the first tube in an interference fit and the second engagement surface is tapered in a second direction opposite to the first directions to engage the second tube in an interference fit.

A finial adapted for mounting on a tubular window covering support rod of the type including a first tube slidingly received in a second tube and on a holdback bracket of the type having a holdback portion terminating in a finial mounting portion, the finial comprising:

• a decorative portion;
• and
• a socket portion coupled to the decorative portion for maintaining the finial on the rod or the bracket, the socket portion including a first engagement surface configured to enter into and engage the first tube, a second engagement surface configured to fit over and engage the second tube and a slot configured to receive the mounting portion of the holdback bracket, wherein the socket includes an annular groove having first and second side walls and the first and second engagement surfaces are defined by at least a portion of the first and second side walls respectively.