Patent ID: 7987863
Filing Date: 2011-08-02
Classification: E04H

Abstract:
1. A joining device for joining a first membrane module of a tent or canopy to a second membrane module of the tent or canopy, wherein said first membrane module comprises a first membrane that has an edge and an upper surface, and wherein said second membrane module comprises a second membrane that has an edge and an upper surface, wherein said joining device comprises a joint that joins the edge of the first membrane to the edge of the second membrane, wherein said joint comprises: a. a first keder strip adapted to be connected to the edge of the first membrane and to extend along the edge of the first membrane; b. a second keder strip adapted to be connected to the edge of the second membrane and to extend along the edge of the second membrane; c. a water-shedding keder rail, wherein said water-shedding keder rail comprises: i) a first channel having a first elongated opening for receiving said first keder strip, wherein said first channel is substantially parallel to a longitudinal axis of said water-shedding keder rail; ii) a second channel having a second elongated opening for receiving said second keder strip, wherein said second channel is substantially parallel to said first channel, whereby the first membrane module and the second membrane module are joined together when said first keder strip and said second keder strip are received by said first channel and said second channel, respectively; iii) an upper surface facing upwards when the tent or canopy is assembled, wherein said upper surface extends from said first elongated opening to said second elongated opening, and wherein said upper surface is convex about the longitudinal axis, whereby water falling on said upper surface flows off of said keder rail; and, iv) a lower side opposite said upper surface; d. a first cover flap adapted to extend from the upper surface of the first membrane; and, e. a second cover flap adapted to extend from the upper surface of the second membrane, wherein said second cover flap opposes said first cover flap, wherein tension created by joining the first membrane module to the second membrane module causes said first cover flap and said second cover flap to press together and slidably abut one another, wherein a seal is formed over said joint by the slidable abutment of said first cover flap and said second cover flap, whereby the seal shields said joint.