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
System and method for detecting states
Semiconductor assembly and semiconductor package including a solder channel
Uplink interference mitigation method and apparatus
Methods and apparatuses for anti-shading correction with extended color correlated temperature dependency
Light-emitting device
Polarized film apparatus with bands of alternating orientation
Editing device and editing method
  Randomly Featured Patents
Apparatus for removing gas from a liquid
Adaptive pulse shaping method and apparatus for unlatching a VCM in a disc drive
Dehydrodidemnin B as an L-type calcium channel enhancer
Instruction address stack in the data memory of an instruction-pipelined processor
Stamping part of a stamp
Machining data display system
Rage fusion proteins
Lead-free precussion primer mixes based on metastable interstitial composite (MIC) technology
Device for arresting the propagation of a buckle in a double-walled pipe
Retroreflective cube corner sheeting mold and sheeting formed therefrom