Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Fire hydrant system










Image Number 12 for United States Patent #7228868.

The present invention relates to a hydrant system that is projected over the ground while being buried in the underground. The hydrant system comprises a sluice valve connected to a water-guide tube within a manhole M, the sluice valve having a first openings/shutting shaft disposed therein; a female cylinder having a drain valve that is opened when the sluice valve is locked and that is locked when the sluice valve is opened, and a bracket having a through-hole; a male cylinder having a piston for opening/shutting the bottom of the male cylinder as a piston rod is rotated in the forward or reverse direction; a rod for limiting a projection range of the male cylinder protruded against the female cylinder; a manhole cover having a sub hole through which the male cylinder passes; a second opening/shutting shaft for rotating the first opening/shutting shaft; and a universal joint, which connects the first opening/shutting and the second opening/shutting shaft.








 
 
  Recently Added Patents
Organic compounds
System and method for combining different tablets into a pouch
Vertical axis wind turbines
Method and a channel estimating arrangement for performing channel estimation
Pixel structure of a solid-state image sensor employing a charge sorting method
Organic electroluminescent element
Flexible organic light emitting device and manufacturing method thereof
  Randomly Featured Patents
Handle
Tearing eye doll
Semiconductor device
Method of high fiber throughput screening
Cosmetic container
Apparatus and method for identifying process elements using request-response pairs, a process graph and noise reduction in the graph
Foam roller cleaning system for a liquid electrophotographic printer
Optimized non-volatile storage systems
Weighted handle for a jump rope
Tracking mount assembly