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SLIDING COVER AND HOUSING DEVICE THEREOF

  • US 3,570,579 A
  • Filed: 03/12/1969
  • Issued: 03/16/1971
  • Est. Priority Date: 03/18/1968
  • Status: Expired due to Term
First Claim
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1. A sliding cover comprising cover pieces having at the opposite ends thereof curved projections the cross section of which are formed by the arcs of circles and edge projections, said curved and edge projections forming therebetween slots, said cover pieces having at the opposite ends thereof slots opening in the opposite direction to each other, the inner walls of said edge projections defining said slots being arched concentrically with the opposite surfaces of said curved projections;

  • and a hinge connecting said cover pieces having two fitting edges extending towards each other, two guiding edges each connected to the corresponding fitting edge and formed into an arcuate portion to be received in said corresponding slot, and a central portion connecting said two guiding edges, said fitting and guiding edges forming fitting slots therebetween receiving said curved projections, and said fitting slots having parallel walls concentric with the opposite surfaces of said curved projections.

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