Microwave lamp with rotating field

Patent 5227698 Issued on July 13, 1993. Estimated Expiration Date:

March 12, 2012. 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.

Abstract Claims Description Full Text

Patent References

3157823

3872349

Microwave generated radiation apparatus
Patent #: 4042850
Issued on: 08/16/1977
Inventor: Ury , et al.

Microwave oven
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Inventor: Simpson

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Patent #: 4414453
Issued on: 11/08/1983
Inventor: Simpson

Microwave oven with improved feed structure
Patent #: 4431888
Issued on: 02/14/1984
Inventor: Simpson

Electrodeless lamp using a single magnetron and improved lamp envelope therefor
Patent #: 4504768
Issued on: 03/12/1985
Inventor: Ury , et al.

Microwave oven with circular polarization
Patent #: 4580023
Issued on: 04/01/1986
Inventor: Simpson

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Inventors

Assignee

Fusion Systems Corporation

Application

No. 850278 filed on 03/12/1992

US Classes:

315/248, Induction-type discharge device load315/39Discharge device load with distributed parameter-type transmission line (e.g., wave-guide, coaxial cable)

Examiners

Primary: LaRoche, Eugene R.
Assistant: Zarabian, A.

Attorney, Agent or Firm

Pollock, Vande Sande & Priddy

Foreign Patent References

56-141165 JP. 11/13/1981

International Class

H05B 041/16

Abstract

A microwave powered lamp wherein microwave energy is coupled to a cavity in which an electrodeless bulb is disposed, such that a rotating field of constant ellipticity is established in the cavity.