Resources Contact Us Home
Loose leaf retainer for file folders

Image Number 3 for United States Patent #4932804.

A pair of flexible retainer strips each of which can be held in ring configuration by a head and socket at opposite ends of the strip which interlock to retain a stack of perforated sheets in a file folder. Each retainer strip is slidably mounted in a separate guide channel formed in an anchor element securable to the cover of a file folder. The ends of the strip can be readily uncoupled to enable the insertion in or removal of a sheet at any location in the stack without having to remove any of the remaining sheets of the stack from the retainer strip.

  Recently Added Patents
Sensor apparatus and information processing apparatus
High voltage fast recovery trench diode
Dual use photovoltaic system
Method and system for presenting live video from video capture devices on a computer monitor
Method and apparatus for blind signal extraction
Elastic polypropylene-based film compositions
Nucleic acid-based tests for prenatal gender determination
  Randomly Featured Patents
Multi-bit STRAM memory cells
Connectors for vessels or pipes
Back-side-illuminated image sensors with bulk-charge-modulated image sensor pixels
Transmission remote control apparatus
Video cassette storage container
Analyte-releasing beads and use thereof in quantitative elispot or fluorispot assay
Adaptor tool assembly
Attachable airfoil with movable control surface
Apparatus for releasing gases from rechargeable lithium electrochemical cells during the formation stage of manufacturing
System, method, and apparatus for triggering an alarm