Resources Contact Us Home
Drainage valve pipe tap assembly

Image Number 4 for United States Patent #6681796.

A drainage valve tap assembly for connection of a branch line to a main line while simultaneously forming a freeze proof drain comprising a hollow body having a first end and a second end, a cutting tube attached to the first end of the body; a handle having a hollow interior, the handle attached to the second end of the body for rotating the body; and a resilient drain plug extending at least partially in the body for blocking off the flow of water therethrough under a water pressure and for allowing the draining of water therethrough and out of the drainage valve when the water pressure is cut-off.

  Recently Added Patents
Methods and devices for multiple-mode radio frequency synthesizers
Mobile terminal and controlling method thereof
Methods for processing 2Nx2N block with N being positive integer greater than four under intra-prediction mode and related processing circuits thereof
Semiconductor element-embedded wiring substrate
Optical writer and image forming apparatus including same
Load control device
Split-ring resonator creating a photonic metamaterial
  Randomly Featured Patents
Electric fan apparatus, connector connection structure, and intermediate terminal
Non-aqueous electrolyte secondary battery
Cubic boron nitride bipolar transistor
Anterior screw-rod connector
Side shield for eyeglasses and method of making the same
Method and apparatus for detecting rapid off track following and protecting nearby tracks from rapid off track writing in a hard disk drive
Modular spaced armor assembly
Filter cigarette having adjustable air dilution
Hand held computer for inputting soccer data
Electrical connector having improved terminal positioning assurance member