Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Thermally efficient busway
Battery structures and related methods
Electro-optical device, method of manufacturing the same, and electronic apparatus
Light fixture
Method for preparing an organic film at the surface of solid support under non-electrochemical conditions, solid support thus obtained and preparation kit
Methods and apparatus for clock signal synchronization in a configuration of series connected semiconductor devices
Method and device for peer arrangement in single substream upload P2P overlay networks
  Randomly Featured Patents
MOS operational transconductance amplifier using an adaptively-biased differential pair
Multi oligosaccharide glycoconjugate bacterial meningitis vaccines
Aircraft defense system against manpads with IR/UV seekers
Method for tracking an event through multiple module-specific files
Stereomicroscope
Golf practice device
Hydrocarbon dehydrogenation method and nonacidic multimetallic catalytic composite for use therein
Diaper insert having adjustable absorbent assemblies
Control system for an N-methyl-2-pyrrolidone refining unit receiving heavy sweet charge oil
Electronic cross-level detection system