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:
May. 27, 2003
Filed:
Apr. 19, 2001
Applicant:
Inventors:
Alain Le Floc'h, Valbonne, FR;
Jean-Michel Tauzia, Blanquefort, FR;
Assignee:
SNPE, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F 3/00 ;
U.S. Cl.
CPC ...
B22F 3/00 ;
Abstract
The subject of the invention is a particularly simple and inexpensive process for manufacturing tin/tungsten composite elements having a thickness of between 1 mm and 6 mm, such as spherical shot for hunting cartridges or fishing sinkers, from a tin/tungsten powder blend. The powder blend is extruded, in the solid state, directly into a wire whose thickness is between 1 mm and 6 mm with an extrusion rate≦80 mm/s. Next, the wire is cut into pieces which are then forged to the desired shape, especially into spheres. The subject of the invention is also the aforementioned process for obtaining the wire.