Resources Contact Us Home
Secure fire hydrant cap

Image Number 5 for United States Patent #7797972.

A security device for engaging a threaded element includes an inner body configured to engage the threaded element and an outer body operatively coupled to the inner body. A pin is operatively coupled to the inner body and movable between an extended position and a retracted position such that the outer body moves relative to the inner body when the pin is disposed in the retracted position and the outer body and the inner body are operatively coupled for simultaneous movement when the pin is disposed in the extended position.

  Recently Added Patents
Inspection tool for top guides of a boiling water reactor
System for encrypting and decrypting a plaintext message with authentication
Architectural panel with natural fossil spade leaf embossed surface
System and method for redundant array copy removal in a pointer-free language
Configuration method and system of complex network and configuration and management module of server resources
Method of preparing enteric hard capsule and enteric hard capsule prepared thereby
Systems, methods, and media for firewall control via remote system information
  Randomly Featured Patents
Substituted bipyridines for use in light-emitting devices
Closed ratchet release handle
Pelican holiday ornament
Non-aqueous electrolyte secondary battery with high capacity and good life characteristics
Photographic method for forming images on plain paper
Electrocatalytically active non-carbon metal-based anodes for aluminium production cells
Card reader anti-skimming assembly and method
Coated perfluorosulfonic acid resin membranes and a method for their preparation
Method for forming deposited film and photovoltaic element
Computer power supply with a display function