Resources Contact Us Home
Fence support structure, especially for equestrian show jumping

Image Number 3 for United States Patent #4368875.

A structure for supporting an obstacle, such as a so-called fence for use in equestrian show jumping, includes upright posts, each with a guide rail and a vertical row of holes in the guide rail. One or several obstacle support members are slidably adjustable up and down along the guide rails and arrestable in predetermined positions by a spring biased bolt which may be withdrawn manually from a hole for the adjustment movement. After adjustment the spring bias again urges the bolt into the respective hole.

  Recently Added Patents
Tropoelastin derivatives
Fluid pressure responsive electric switch
Projection illumination system for EUV microlithography
Fluid discrimination device
Systems and methods of device-free motion detection and presence detection
Apparatus and method for phase synchronization in radio frequency transmitters
Wireless communication system using pilot allocation, method and pilot pattern thereof
  Randomly Featured Patents
Padlock shackle protective shield
Change stroller accessory container
System and method for extracting behavioral code from a software code file
Photographic printing apparatus and methods
Optical module interfacing device and ethernet system using the same
THF-containing sulfonamide inhibitors of aspartyl protease
Gas concentrator with improved water rejection capability
Article turning-round apparatus
Systems and methods for wavelength selective measurement of properties of small volume liquid samples
Reactive magnesium oxide cements