Did You Know...
...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7819047 | System and method to centrifugally cast munitions An apparatus for manufacturing munitions includes a housing and a munition mold within the housing. The housing has an axis of rotation. The munition mold is filled with a molten metal, and the mold is rotated to form a munition. ... | 10/26/2010 |
| 7201811 | Large diameter domes and methods of manufacturing same The present invention relates to methods of making large spin blanks out of pieces of aluminum sheet or plate joined by friction stir welding to provide plate blank sizes greater than 156 inch (396 cm) in diameter. Blank sizes greater than 209 inch diameter enable m... | 04/10/2007 |
| 7069834 | Tapered powder-based core for projectile A powder-based projectile useful in the manufacture of gun ammunition comprising a jacket having an inner volume which is tapered from a maximum diameter adjacent the open end of the jacket to a minimum diameter adjacent the closed end of the jacket and a core forme... | 07/04/2006 |
| 5305505 | Process of making a multi-section bomb casing A process for making multi-section bomb casings of high strength alloy steel at a reasonable production rate that have the strength and fracture properties of single-piece casings, with the sections being joined using friction welding techniques.... | 04/26/1994 |
