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(11) | EP 2 546 450 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Apparatus, system and method for joining sub-frame members |
(57) Embodiments of the invention relate to an apparatus comprising: a first and second
sub-frame members for framing a pane, each respectively comprising a first and second
plurality of walls defining a first and second hollow cavities therethrough and each
having respectively a first and second open end configured to receive therein a first
and second protrusion of a means for joining the sub-frame members together. A least
one of the first plurality of walls is a first external wall and at least one of the
second plurality of walls is a second external wall. At least a part of the first
and second external walls are configured to abut against one another in the form of
a butt joint when in a joined condition.
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