Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 137/105
Name: Fluid handling > Self-proportioning or correlating systems > Supply and exhaust type > Vacuum or suction pulsator type (e.g., milking machine) > With pulsation responsive pilot valve
Description: Apparatus wherein the flow controlling valve is moved by a fluid servo under control of a second valve which is itself fluid operated under control of the first valve, there being no mechanical linkage between the two valves.

Patents under this class:

Patent Number Title Of Patent Date Issued
7139219 Hydraulic impulse generator and frequency sweep mechanism for borehole applications Nov. 21, 2006
6161580 Pulsator Dec. 19, 2000

  Recently Added Patents
Power management method for reducing power of host when turning off main monitor and computer system applying the same
Automated security analysis for federated relationship
Media used in digital high speed inkjet web press printing
Sweetener compositions having enhanced sweetness and improved temporal and/or flavor profiles
Organic light emitting device connection methods
Image forming apparatus
  Randomly Featured Patents
Production of a clean gas, in particular for testing a pressurized construction component for leaks
Device for administering timed orders for the remote control of electrical apparatus
Energy controller and method for dynamic allocation of priorities of controlled load curtailment to ensure adequate load sharing
Shortened dual-mode horn antenna
Sheet-fed rotary printing press
Device for measuring the gearbox oil temperature
Machine for disassembling wood pallets
Apparatus and methods for bridging calls or data between heterogeneous network domains
Novel N-carboxy-alpha-amino acid anhydrides