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:
Sep. 26, 1995

Filed:

Jan. 05, 1994
Applicant:
Inventors:

Hartmuth Bastian, Feuchtwangen, DE;

Karl-Heinz Gleixner, Munich, DE;

Achim Gosslar, Munich, DE;

Ulrich Henger, Wipperfuerth, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313 25 ; 313 17 ; 313634 ;
Abstract

To simply and reliably retain a heat retention tube or sleeve (10) within envelope (1) and surrounding the arc tube or discharge vessel (4) of the lamp, end regions of the heat retention or conservation tube are pinched around current supply leads (7) which pass through the pinch or press region (11). To prevent dislocation of the tube or sleeve (10), axially as well as rotationally with respect to the arc tube, the current supply leads are deformed in the region of the pinch or press (11), for example by being flattened or deflected in a bend or V-shape from a straight wire. An exhaust tube (12) can be passed through the pinch (11) if the pinch extends across the entire diameter of the heat retention tube; otherwise, the pinch need only extend over a portion thereof, thus providing for pneumatic communication between the interior of the heat retention tube and the envelope (1).


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