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Portable display device

  • US 3,975,850 A
  • Filed: 04/10/1975
  • Issued: 08/24/1976
  • Est. Priority Date: 04/10/1975
  • Status: Expired due to Term
First Claim
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1. A portable, light-weight display device comprising a collapsible frame and a plurality of visual display panels detachably fastened to the collapsible frame, the collapsible frame comprising:

  • a. two upright support members, each of said upright support members comprising;

    i. a braced foot-member attached to one end,ii. a plurality of first structural fasteners spaced apart along its length, andiii. at least one joint at which said support member may be broken;

    b. three rigid rectangular frames at least one of which is rigidly and detachably connected to said two upright support members by means of said first structural fasteners, each of said rectangular frames comprising;

    i. fastening-means in its corners for fastening thereto at least one visual display panel,ii. at least two second structural fasteners spaced apart on its perimeter, andiii. at least one side whose length substantially equals the length of a side of another of the rectangular frames and which is detachably connected to said corresponding side of said other rectangular frame by means of said second structural fasteners; and

    c. four rigid triangular support members, each of said triangular support members comprising;

    i. at least two third structural fasteners spaced apart on its perimeter,ii. one side whose length substantially equals the length of a side of one of the rectangular frames and which is detachable connected to said corresponding side of said rectangular frame by means of said third structural fasteners, andiii. a second side detachably connected to an upright support member by means of said first structural fasteners.

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