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Door closure

  • US 3,960,196 A
  • Filed: 05/13/1974
  • Issued: 06/01/1976
  • Est. Priority Date: 03/14/1973
  • Status: Expired due to Term
First Claim
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1. A telescopic door with spaced apart wall sections consisting of a series of equal parallel side panels, each panel being bent outward on the upper edge and inward in the opposing lower edge in such a way that each side panel easily can be caught by a superposed panel and in turn can catch the next adjoining lower panel when the door is being closed, and forming fixed connections between said side panels maintaining the same at an exact distance from each other, said outward edge bends on the panels being larger than the inward bends of the panels on their opposite edges, whereby the larger bends are supported to glide against the inner side of the adjacent superposed panels, inhibiting scratching by the inward bends against the outer side of the adjoining panels.

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