U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Liquid pump and vaporizer

Patent 5361800 Issued on November 8, 1994. Estimated Expiration Date: Icon_subject July 23, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2528440

2949768

3151562

3529622

3583440

Steam generator with direct evaporation
Patent #: 4352252
Issued on: 10/05/1982
Inventor: Brenot

Dual piston pump
Patent #: 4352636
Issued on: 10/05/1982
Inventor: Patterson ,   et al.

Pump for a portable ventilator
Patent #: 4493614
Issued on: 01/15/1985
Inventor: Chu ,   et al.

High pressure regulator valve
Patent #: 4620562
Issued on: 11/04/1986
Inventor: Pacht

Fuel pressure control valve device
Patent #: 4936342
Issued on: 06/26/1990
Inventor: Kojima, et al.

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Inventor

Application

No. 097271 filed on 07/23/1993

US Classes:

137/495, With manual or external control for line valve137/510Flexible diaphragm or bellows reactor

Examiners

Primary: Hepperle, Stephen M.

Attorney, Agent or Firm

Foreign Patent References

  • 0023855 EP. 02/13/1981
  • 0341031 EP. 05/13/1988
  • 0309596 EP. 04/13/1989
  • 0323448 EP. 07/13/1989
  • 0352727 EP. 01/13/1990
  • 0376497 EP. 07/13/1990
  • 2188696 FR. 01/13/1974
  • 2581442 FR. 11/13/1986
  • 98324 DE. 09/13/1896
  • 944669 DE. 10/13/2012
  • 4029071 DE. 03/13/1992

International Class

F16K 031/365

Abstract

An improved vaporization system includes an automated valve and positive displacement pumping system using a pair of pumps operating in opposition to one another to provide continuous and constant volumetric flow at a constant predetermined pressure to an improved vaporizer using a stack of heated disks to flash vaporize the liquid. The valves are improved by providing one way flow.

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