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
Sending notification of event
Mitigating single point failure of devices in an analyte monitoring system and methods thereof
Adaptive period network session reservation
Implicit certificate scheme
Direct converting apparatus, method for controlling the same, and control signal generation device
Display fixture for highlighting products
Semiconductor device with hetero-junction bodies
  Randomly Featured Patents
Solid electrolytic capacitor and a fabrication method therefor
Organosilicon compounds
Conductive blade
Chrysanthemum plant named `Yotopeka`
Fire alarm textual notification related application
Ultrasound hyperthermia apparatus
Protective helmet and chin strap attachment device therefor
Device for driving a multi-phase d.c. motor
Process for evaluating chemical and biological assays
Device for pressure sealed connection of the outer conductor of a coaxial line