Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7765696 | Piston for an internal combustion engine and method for coating its pin bores Disclosed is a piston (1) for a combustion engine, comprising hub bores (3) that are provided with plain bearing surfaces (5) and are used for accommodating a piston pin. In order to very effectively and inexpensively prevent the piston pin and ... | 08/03/2010 |
| 7743746 | Coating for connecting rods and bearings in an internal combustion engine Disclosed is a connecting rod for a combustion engine, comprising a small connecting-rod eye that is provided with a plain bearing surface and is used for accommodating a piston pin, and a large connecting-rod eye which is provided with a plain bearing surface and e... | 06/29/2010 |
| 7634963 | Piston ring comprising a coated running surface, and coating agent The invention relates to a piston ring whose running surface is provided with a coating containing a plastic material. Said piston ring is characterized in that the coating is composed of at least one polyamide-imide and/or at least one polyether ether ketone with e... | 12/22/2009 |
| 7572344 | Method for the production of wear-resistant sides for a keystone ring for internal combustion engine A method for the production of wear-resistant edges for a keystone ring for internal combustion engines, involves forming a rectangular ring from a steel strip with a rectangular cross-section, grinding the ring edges and the outer circumferential faces to give the ... | 08/11/2009 |
| 5792265 | Device and process for producing reinforcing layers on cylinder running surfaces of internal combustion engines and the like The cylinder running surfaces of an internal combustion engine are treated with pretreatment and coating baths by using flush-in devices (5, 11) with lances insertable into the cylinder bores (1'). The flush-in devices (5, 11) can be successively connecte... | 08/11/1998 |
