Method and apparatus for evening out the temperature distribution of electrodeless lamp bulbs

Patent 4902935 Issued on February 20, 1990. Estimated Expiration Date:

June 29, 2008. 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

Method & apparatus for cooling electrodeless lamps
Patent #: 4485332
Issued on: 11/27/1984
Inventor: Ury , et al.

Deep UV lamp bulb
Patent #: 4501993
Issued on: 02/26/1985
Inventor: Mueller , et al.

Microwave generated electrodeless lamp for producing bright output
Patent #: 4507587
Issued on: 03/26/1985
Inventor: Wood , et al.

Method and apparatus for cooling electrodeless lamps Patent #: 4695757
Issued on: 09/22/1987
Inventor: Ury , et al.

Inventor

Wood, Charles H.

Assignee

Fusion Systems Corporation

Application

No. 213041 filed on 06/29/1988

US Classes:

315/112, WITH LOAD DEVICE TEMPERATURE MODIFIER313/13, Having control means for the temperature modifier313/44, For envelope wall313/231.61, Electromagnetic output (i.e., light)315/118, Load device circuit controlled by the temperature modifying medium315/248, Induction-type discharge device load362/373, With cooling means362/386Electromagnetic operator controls movable light support

Examiners

Primary: LaRoche, Eugene R.
Assistant: Nguyen, Truc

Attorney, Agent or Firm

Pollock, Vande Sande & Priddy

International Class

H01J 017/28

Abstract

An electrodeless lamp bulb is rotated about an axis which is at a designated angle to the predominant direction of the electrical field. This has the effect of evening out the temperature distribution about the bulb and reducing the formation of hot and cold spots.