U.S. Patent 6,656,017


Method and apparatus for creating an open cell micro-environment for treating a substrate with an impingement spray

  • Clean Cell™ CO2 Spray Processing Minienvironments
  • Vulcon Ice™ Robotic Spray Cleaning Systems
  • SnoPen™ Benchtop Spray Cleaning Systems
  • OzoKool™ Tunable MQCL™ Systems
  • 2Cool Tool™ Thermal Management Systems
  • Mobi™ Mobile Spray Cleaning Systems
  • GENESYS™ Vector Pro™ Spray Treatment Systems
  • PowerSno™ Modular Spray Treatment Platform
  • Vector Pro™ CO2 Composite Spray Applicators
  • OZPEN™ (Licensed Private Label Product, OZ Optics Ltd.)
  • CleanMaster™ (Licensed Private Label Product, Reliabotics LLC)

David Jackson

Date Issued

December 2, 2003

Technology Platform

CO2 Composite Spray™

Internet Link

U.S. Patent No. 6,656,017


The present invention is a method and apparatus for providing a low-cost and less complex micro-environment for treating a substrate using an impingement cryogenic or steam spray jet. A substrate and fixture is contained within an open-architecture prophylactic or cleaning cell whereupon the substrate and fixture is continuously bathed in a regenerated and re-circulating stream of filtered, inert, dry, heated and ionized atmosphere which bathes both the entire substrate and fixture. This prevents the intrusion of contaminating ambient atmospheres onto critical surfaces. The cleaning cavity is constantly regenerated and re-circulated through the cleaning cell to maintain a majority of the clean atmosphere wherein the clean cavity is pressurized slightly with a small volume of clean dry air or inert gas to prevent the intrusion of ambient atmosphere into the cleaning cell. A small exhaust duct removes the partial pressure of atmosphere from the open regions of the cleaning cavity, capturing the escaping cavity atmosphere. The exemplary spray cleaning applicator of the present invention provides a majority of the make-up atmosphere required to operate the cleaning cell. The treated surface is thus isolated and protected from the ambient atmosphere and contaminants contained therein prior to, during and following application of a treatment spray. The present invention allows for the simultaneous application of a variety of conventional surface treatment agents such as dry steam or snow to a critical surface. Finally, the present invention controls and maintains the quality of the environment immediately within the vicinity of the substrate being treated, and the ambient atmosphere.

Related Patents
  • Taiwan Patent I577452 – Apparatus for forming and regulating a CO2 composite spray
  • U.S. Patent 9,387,511 – Particle-plasma ablation process for polymeric ophthalmic substrate surface
  • U.S. Patent 9,381,574 – Method and apparatus for cutting and cleaning a superhard substrate
  • U.S. Patent 9,352,355 – Particle-plasma ablation process
  • U.S. Patent 9,227,215 – Determination of composition and structure of a CO2 composite spray
  • U.S. Patent 9,221,067 – CO2 composite spray method and apparatus
  • U.S. Patent 8,197,603 – Method and apparatus for treating a substrate with dense fluid and plasma
  • U.S. Patent 8,021,489 – Substrate treatment process
  • U.S. Patent 7,451,941 – Dense fluid spray cleaning process and apparatus
  • U.S. Patent 7,225,819 – Apparatus process and method for mounting and treating a substrate
  • U.S. Patent 6,979,362 – Apparatus and process for the treatment, delivery and recycle of process fluids used in dense phase carbon dioxide applications
  • U.S. Patent 5,725,154 – Dense fluid spray cleaning method and apparatus
  • Patents Pending – Passive electrostatic CO2 composite spray applicator