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.
Patent No.:
Date of Patent:
Nov. 24, 1981
Filed:
Sep. 17, 1979
Rolf Kiesel, Konigsbronn, DE;
Manfred Gaugel, Furstenfeldbruck, DE;
Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen m.b.H., Stuttgart, DE;
Abstract
The lamp bulb (1) has two filaments (4, 5) positioned within the bulb and rallel to the longitudinal axis (L) thereof, for example located at an axis of symmetry passing through the longitudinal axis, or in two respective planes of symmetry (E4, E5) which are, respectively, parallel to the axis of symmetry (S) of the lamp, the two filaments being preferably symmetrically positioned with respect to the axis of symmetry of the lamp (L). When located in a sealed-beam headlight, one of the filaments forms a depressed beam and the other the high beam, the high beam being preferably positioned along the axis of the reflector, at or close to the focal point thereof, for example by an off-center positioning of the bulb within the reflector.