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

Method for protecting exposed surfaces

Patent 6379427 Issued on April 30, 2002. Estimated Expiration Date: Icon_subject December 6, 2019. 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

3537447

3673463

3681896

3757491

3802625

Method of removing particles and fluids from a gas stream by charged droplets
Patent #: 3958959
Issued on: 05/25/1976
Inventor: Cohen ,   et al.

Electrostatic air purifier using charged droplets
Patent #: 3960505
Issued on: 06/01/1976
Inventor: Marks

Gas curtain for shielding person on an operating table
Patent #: 4140105
Issued on: 02/20/1979
Inventor: Duvlis

Method and apparatus for treating electrically charged airborne particles
Patent #: 4162144
Issued on: 07/24/1979
Inventor: Cheney

Air ionizer for rooms
Patent #: 4366525
Issued on: 12/28/1982
Inventor: Baumgartner

More ...

Inventor

Application

No. 455164 filed on 12/06/1999

US Classes:

95/57, ELECTRIC OR ELECTROSTATIC FIELD (E.G., ELECTROSTATIC PRECIPITATION, ETC.)55/385.2, In environmental air enclosure95/58, With addition of solid, gas, or vapor95/78, Including baffling, deflection, or restriction of gas flow96/16, And radioactive or ultraviolet light ionizer96/224, Germicidal lamp (e.g., ultraviolet light, etc.)361/226Particulate matter (e.g., liquids with suspended particles)

Examiners

Primary: Chiesa, Richard L.

International Class

B03C 003/017

Abstract

A method for protecting an exposed surface in an enclosed space, such as a building, medical room, manufacturing space or consultation room, from harmful airborne agents. Airborne agents are charged by exposure to an electrostatically-charged cloud and an electrostatically-charged field is created for electrostatically manipulating the harmful airborne agent away from or toward the exposed surface for protecting the exposed surface from the harmful airborne agent. The harmful airborne agent may be collected on a charged surface, and destroyed by ultraviolet light.

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