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Snap-on fastening device and cap assembly for seamed panels

  • US 4,546,586 A
  • Filed: 04/11/1983
  • Issued: 10/15/1985
  • Est. Priority Date: 04/11/1983
  • Status: Expired due to Fees
First Claim
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1. A fastening device for securing a cap in the form of an inverted U-shaped member with a pair of opposed inturned end flanges to the exterior of a closed seam connecting panels side by side in which an edge portion of one panel is folded over an edge portion of the other panel and forms a laterally protruding overhanging surface portion comprising:

  • a body having a bight portion and a pair of opposed, resiliently yieldable legs extending from opposite ends of said bight portion and spaced from one another with a slot therebetween and with an entrance opening opposite said bight portion,said legs having inside wall surface portions sized and shaped in relation to the size and shape of the seam so that, upon the forcible insertion of said body to a leg-straddling position over said seam, the legs spread apart and the resiliency of said legs applies retaining forces at several contact points vertically of said seam to firmly secure said body thereto,said body having an inside projection providing a locking surface portion facing said bight portion which will bear against the laterally protruding overhanging surface portion of the seam after said insertion to lock said body against forces tending to pull said body upwardly from the seam,said body having retaining means including opposed retainer portions under which both opposed end flanges of the cap extend, the cap being disposed in a covering position on said fastening device to hold the cap against forces tending to remove the cap from said fastening device.

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