Resources Contact Us Home
Ring binder

Image Number 3 for United States Patent #5788390.

A ring binder adapted to be fixed to an article includes a support for mounting a plurality of ring members thereon, and a control member movable along a sloped portion on the under surface of the support to cause the support to pivot and thereby open the ring members. The sloped portion on the under surface of the support is provided on at least one of an inturned inner edge of the support and a protrusion extending from the under surface of the support.

  Recently Added Patents
Using sets of OTDR receive fibers with different lengths of marker events to verify optical fiber connectivity
Protective circuit board and battery pack using the same
Liposomal nanoparticles and other formulations of fenretinide for use in therapy and drug delivery
Fixing apparatus
Image forming apparatus forming images in response to image formation request from operation unit or external device
Continuous geospatial tracking system and method
Analogue-to-digital converter
  Randomly Featured Patents
Apparatus for deactivating instruments and devices
Combination desk unit
Liquid-crystal display devices of twisted nematic type
Steel calypso pan clock
Method and apparatus for reducing malicious odors from a cat litter receptacle
Heald frame and a weaving machine including at least one such heald frame
Method for degradation of nucleic acids and use thereof
Procedure for the correlation of different coordinate systems in computer-supported, stereotactic surgery
Biologically active reagents prepared from carboxy-containing polymer, analytical element and methods of use
Lid for refuse container