Resources Contact Us Home
Card safety wallet and safety insert

Image Number 2 for United States Patent #5790027.

A safety wallet having an alarm system for detecting a missing or partially inserted card or similar object. At least one pocket or compartment for retaining cards or similar objects is provided with opposing films of conductive material on a dielectric material base. An alarm circuit board is electrically connected with the conductive films such that an audio alarm is activated when the wallet is closed without a card in at least one pocket and the alarm is not activated when cards or similar objects are fully inserted in all the pockets.

  Recently Added Patents
Oil tank floating roof device
Night light for attaching to objects
Image processing device, display system, electronic apparatus, and image processing method
Reductive biomass liquefaction
Methods and apparatus to use window alignment information to process acknowledgment information associated with transmitted data blocks
Electrical plug having a plurality of housings with PODS welded to a plurality of wires and conductive rings
  Randomly Featured Patents
Process for the production of stable liquid form of beta-blocker-containing medicaments with controlled release of the active constituent for oral administration
Special mode activation circuit for selectively activating a special mode circuit of a semiconductor integrated circuit device
Prostatic carcinoma
Selective cell necrosis in experimental animal tumors
Selecting a calibration function for a digital printer which minimizes an error criterion
Intake and exhaust valve system
Low temperature, non-SO.sub.2 polluting, kettle process for separation of lead from lead sulfide-containing material
Signal processing circuit for spread spectrum communications
Detachable polygonal picture frame