Resources Contact Us Home
Apparatus for the automatic issuance and return of keys

Image Number 2 for United States Patent #4010868.

A plurality of keys are movably suspended on a support in successive orientation one behind the other. The leading key engages a dispensing device which normally prevents the discharge of the keys from the support but which is actuable on command to selectively release the first or leading key while retaining the remainder of the keys on the support. Secondary rails are provided for separating and diverting keys according to their use.

  Recently Added Patents
Data processing apparatus and data processing method for reducing an uneven color made up of two or more ink colors
Method for driving electrophoretic display device, electrophoretic display device, and electronic device
Crystalline form of zofenopril calcium
Vertical axis wind turbines
Reuse of static image data from prior image frames to reduce rasterization requirements
System and method for ranking content and applications through human assistance
Method for forming a film
  Randomly Featured Patents
Slider for slide fasteners
Method and apparatus for improved memory management in data analysis
Method and apparatus for forward power control in a communication system
Impedance matched coupling device for microwave tubes
Method and device for controlling a drive train
System for sampling and relaying patient medical data
Block cipher using key data merged with an intermediate block generated from a previous block
Secondary amines, their preparation and use in pharmaceutical compositions
Sand consolidation method
Solid-state image sensing device