Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Float Valve










Image Number 4 for United States Patent #7472717.

A first valve port is set to have a seal diameter smaller than that of a second valve port. Due to a pressure reception area of a first valve body port being small, the attachment force of the first valve body portion is reduced with respect to a valve seat. It thus becomes possible to open the first valve port as the attachment of the first valve body portion is released with respect to the valve seat without increasing the weight of the float. After the first valve port is opened, the pressure difference is reduced between inside of a fuel tank and a connecting pipe on the side of a canister, and the attachment force acting on a second valve body portion is also reduced. In this manner, the second valve body portion is opened with certainty. As a result, it becomes possible to go through the operation of opening the second valve port that is larger in diameter than the first valve port without increasing the weight of a sub float.








 
 
  Recently Added Patents
Hook
Digital photographing apparatus, method of controlling the same, and recording medium for the method
Error detection and recovery tool for logical volume management in a data storage system
Tetrazolyl oxime derivative, salt thereof, and plant disease control agent
Moving picture decoding device and moving picture decoding method
Image sensor pixels with junction gate photodiodes
Hybrid fin field-effect transistor structures and related methods
  Randomly Featured Patents
Timer with manual means for disabling a switch
Method and apparatus for detecting data
Method of fabricating low on-resistance lateral double-diffused MOS device
Self-interference cancellation for relayed communication networks
Three-dimensional imaging system
Method for producing surface-treated magnetic powder
Pick-up bed storage unit
Fluid diffusion layers for fuel cells
Method for preparing a lactone reaction product
Implement assembly with pivot connection