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:
Apr. 09, 1985
Filed:
Jan. 11, 1984
Applicant:
Inventor:
Guy Laforest Le Boudec, Barcelona, ES;
Assignee:
Laforest, S.A., Barcelona, ES;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23Q / ;
U.S. Cl.
CPC ...
431273 ;
Abstract
A device for producing ignition sparks when falling on a pyrophoric flint includes a coil spring having at least one coil which is provided with a pit in a transversal or inclined direction on the outer longitudinal line of the coil. The pit is formed of 'saw-teeth' type projections which protrude from the original core of the coil, thereby forming on the outer surface of the coil spring cutting projections which, when falling on a pyrophoric flint applied to the outside of the coil spring and when the coil spring turns about its axis, produce a tangential hauling of the pyrophoric flint thereby emitting an ignition spark.