Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 137/246.16
Name: Fluid handling > With cleaner, lubrication added to fluid or liquid sealing at valve interface > Liquid supplied at valve interface > Screw feed > With check valve
Description: Valve having check valve means in the lubrication or sealing system.

Sub-classes under this class:

Class Number Class Name Patents
137/246.17 Excess relief 0
137/246.18 Jacking 0

Patents under this class:

Patent Number Title Of Patent Date Issued
8667768 Evacuatable container Mar. 11, 2014
8112971 Valve for sealing an evacuation port of a container Feb. 14, 2012
6488265 Ball valve assembly Dec. 3, 2002
4575101 Device for safe on-stream addition of valve packing Mar. 11, 1986
4318422 Butterfly valve Mar. 9, 1982

  Recently Added Patents
Methods to fabricate a photoactive substrate suitable for microfabrication
Active tags
Dual use photovoltaic system
Multi display device and method of controlling the same
Filtering method for improving the data quality of geometric tire measurements
  Randomly Featured Patents
Method and apparatus for peripheral vehicle position calculation
Device and method for object-based development of business applications software
Object-oriented data mining framework mechanism
Hirudin, pharmaceutical compositions comprising it and their use
Can end
Connector for electrical apparatus
Light-emitting diode based products
Control specimen for evaluation of non-destructive test results, artificial inclusions and process for producing control specimens
Three dimensional model describing method