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Document removal and reinsertion detector

  • US 3,913,087 A
  • Filed: 01/06/1975
  • Issued: 10/14/1975
  • Est. Priority Date: 01/06/1975
  • Status: Expired due to Term
First Claim
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1. A currency removal and reinsertion detector comprising:

  • a base having a currency supporting surface, a cover overlying said base and having a currency restraining surface, said cover being fixedly secured relative to said base with said currency restraining and currency supporting surfaces in closely spaced confronting relation establishing a currency receiving slot into which currency can be inserted for placement between said surfaces, a ferromagnetic element having a mounting section and a telltale section, said mounting section being mounted relative to said base and cover to position said telltale section inaccessibly within said slot for movement therein alternatively between upper and lower positions overlying and underlying, respectively, currency inserted in said slot, said cover being provided with a viewing window therein overlying said telltale section to permit visual inspection of the position, upper or lower, of said telltale section relative to currency inserted in said slot, and a magnet for moving said telltale section to its upper position to permit currency inserted in said slot to underlie said telltale section, said telltale section returning to its lower position upon removal from said slot of currency initially underlying said telltale, whereby reinsertion of said currency initially underlying said telltale without concurrent attraction thereof by said magnet will place said reinserted currency overlying said telltale section and obscure it from view through said window, thereby providing a visual indication that currency initially inserted in said slot concurrent with magnetic attraction of said telltale section has been removed and reinserted.

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