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
Topical antibiotic composition for the prevention of Lyme disease
Modified polyolefin resin for glass fiber treatment, surface-treated glass fiber, and fiber-reinforced polyolefin resin
Data distribution unit for vehicle entertainment system
Hybrid CMOS nanowire mesh device and PDSOI device
Battery structures and related methods
Irreversible thermochromic ink compositions
Display screen with an animated graphical user interface
  Randomly Featured Patents
Ready-to-install road building apparatus and corresponding installation method
Computerized method and system for providing a continuing education credit card
Acoustical virtual reality engine and advanced techniques for enhancing delivered sound
Composites joined with z-pin reinforcement
Fucosidase inhibitor
Image sensor with linearly mounted image sensor IC's
Stacking method of green sheet and a manufacturing method of multilayer ceramic electronic device
Method and system for handling the output queuing of received packets in a switching hub in a packet-switching network
Therapy applicator head
Optical channel intelligently shared protection ring