The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 15, 1983

Filed:

Apr. 15, 1982
Applicant:
Inventor:

Hans P Baumeister, Churchville, NY (US);

Assignee:

Eastman Kodak Company, Rochester, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
315323 ; 313306 ; 313594 ; 313634 ; 315232 ; 3152 / ; 315334 ; 315D / ;
Abstract

Discharge apparatus comprises a xenon-filled glass envelope with a common cathode that divides the envelope into two separate gas-containing chambers. Respective anodes are provided in each chamber to cooperate with the common cathode. By placement of the cathode a closer distance to one of the anodes, the impedance of the discharge path between the more closely spaced electrodes is made lower than the impedance of the discharge path in the other chamber. To make the impedance even lower, the pressure of the gas between the closely spaced electrodes is made lower than the gas pressure between the other pair of electrodes. The discharge apparatus is particularly useful in quenchable electronic flash apparatus employing both a flash tube and a low-impedance quench tube.


Find Patent Forward Citations

Baumeister, Hans. (1983). Combined flash tube and quench tube apparatus (U.S. Patent No. 4415840). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4415840

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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