A glueless composite panel is disclosed having a first panel element and a second panel element. The two panel elements are connected together by coupling and extend in each case parallel to a longitudinal direction of a first end side of the first panel element. A first groove is arranged on the first panel element on the first end side thereof, the groove being delimited by a tongue and an edge strip that is set back with respect to the tongue. The first edge strip is in this case subdivided into individual first strip sections. The second panel element has corresponding coupling such that in the coupled state of the two panel elements the first strip sections and second strip sections of the second panel element undercut one another at least regionally.

Cable coupling assemblies are described which can be readily engaged and separated from one another. The couplings are particularly useful for use in torque transmitting cables such as those used in drain cleaning applications.

A construction system uses a comb connector element in combination with flat or generally planar polygonal shapes of various types. The comb connector elements connect to the edges of the planar polygonal shapes. Each comb connector has at least one pair of connector members. Each connector member has a proximal end connected to the polygonal member, and a distal end. Each connector member having a face portion that includes a recess extending from a central region of the face portion. The recess extends to the distal end of the face member.

A joint for assembling two furniture parts to each other. A first furniture part has a male part for co-operation with a female part of a second furniture part. Each of the male and female parts has a number of grooves. At assembly the male part is moved along the female part via co-operation between the grooves of the male and female part, respectively. The co-operating male and female parts have an insertion position and an end position, in which end position the furniture parts are assembled to each other. The grooves of one of the female and male parts are compressed during movement from the insertion position to the end position. The grooves of the pair of co-operating female part and male part are such that the furniture parts are pressed toward each other when the male part is moved along the female part.

A quick connect mechanism for a medical instrument is provided. The quick connect mechanism includes a post and a mating cup that allows for quick mounting, controlled use, and easy dismounting of medical instruments. A set of post teeth are disposed circumferentially around a body proximate a base of the post and are configured to mate and interlock with a set of cup teeth disposed proximate the cup. The post teeth and cup teeth interlock to restrict rotation of the cup relative to the post and stabilize the medical instrument.