Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 137/118.05
Name: Fluid handling > Self-proportioning or correlating systems > Self-controlled branched flow systems > Plural outflows > Flow rate responsive > Primer valve
Description: Subject matter wherein the change in the fluid flow rate in the main line actuates an outlet leading to a liquid trap seal.

Patents under this class:

Patent Number Title Of Patent Date Issued
8671970 Flow-through trap primer valve assembly Mar. 18, 2014
7882851 Pressure activated trap primer and water hammer combination Feb. 8, 2011
7520292 Pressure activated trap primer and water hammer combination Apr. 21, 2009
6834665 Automatic adjustable trap priming valve Dec. 28, 2004
6422260 Trap primer Jul. 23, 2002
6152164 Pressure-drop activated trap seal primer valve Nov. 28, 2000
5797419 Sewer line trap priming assembly and antisiphoning conduit component therefor Aug. 25, 1998
5678588 Sewer line multiple trap priming system and method Oct. 21, 1997
5287877 Sewer drain trap primer valve Feb. 22, 1994
4821625 Valve device for controlling the delivery of pressurized liquid to two separate hydrostatic motors Apr. 18, 1989
4488569 Apparatus with staged pressure differential for controlling fluid flow Dec. 18, 1984
4468193 Staged hydrocarbon combustion system Aug. 28, 1984
4054327 Air brake system with line pressure loss protection Oct. 18, 1977
4000752 Double-jet acting trap primer Jan. 4, 1977

  Recently Added Patents
Solid-state imaging apparatus
Method of targeting hydrophobic drugs to vascular lesions
Method and apparatus for efficiently inserting fills in an integrated circuit layout
System and method for improving text input in a shorthand-on-keyboard interface
Methods and apparatus for determining a phase error in signals
Apparatus and method of preventing signal delay in display device
Accessing device via communication protocol selection
  Randomly Featured Patents
Substrate for AC/AC multiple-phase power converter
Telescoping leveler
Penile volumetric measuring device
Manufacturing apparatus for a construction material made of woody material and mortar
System and method for regulating electrical and thermal energy generated by co/trigeneration energy system in multi-source energy plant
Embroidery sewing machine
Track tensioning system for endless track-propelled vehicle
Organic electrolyte battery
Target assembly
Personal area network with automatic attachment and detachment