Resources Contact Us Home
Flagpole particularly for indicating goals in skiing competitions

Image Number 3 for United States Patent #4161723.

A flagpole, particularly for indicating goals in skiing competitions, comprising an upper flag carrying portion and a lower pointed portion connected by a helical spring. When this flagpole is driven into the ground, it can move elastically laterally when hit by a skier, thus avoiding to be knocked down or causing injuries to the skier. Preferably the flagpole is provided with a semi-cylindrical abutment shell on one side so that it can move only to the other side, with a telescoping sleeve in its lower pointed portion for adjusting its length, and anvils adapted to be struck with a hammer for driving it down into the ground or hard snow.

  Recently Added Patents
Data distribution unit for vehicle entertainment system
System and method for dynamic quality-of-service-based billing in a peer-to-peer network
Audio and music data transmission medium and transmission protocol
Synthetic refrigeration oil composition for HFC applications
Verification of computer-executable code generated from a model
Multi-layer, microporous polyolefin membrane, its production method, battery separator and battery
Regenerative power storage system mounted on DC electric railway car
  Randomly Featured Patents
Ni-Cr alloy material
Integrated DRAM-NVRAM multi-level memory
Coronary cutting and dilating instrument
Shut-off valve for pipes
Mesoscale polynucleotide amplification analysis
Method of producing a semiconductor laser
Spherulite particles of isotactic polypropylene
Shower curtain rod
Alerting system for a communication receiver
Spool bearing with asymmetric sealing