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:
Sep. 04, 1990
Filed:
Jun. 21, 1989
Jean Guichard, La Garenne Colombes, FR;
Messier-Hispano-Bugatti, Montrouge, FR;
Abstract
A pulse generator in which a magnetic circuit is closed by a portion of a wall (5) of a cylindrical part rotating about its axis and coupled at one of its ends to a drive member (7). The wall portion and a fixed part (1) together define an air gap which varies depending on the relative angular positions of the wall portion and the fixed part such that during rotation magnetic field variations are generated at a frequency proportional to the speed of rotation of the rotating part. The generator includes an electrically conductive winding (4) in which the field variations generate electrical pulses, and the rotating cylindrical part (5) includes at least one longitudinal slot (8).