...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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| Number | Title | Issue Date |
| 7025685 | Constant velocity universal joint and wheel bearing device using the same A constant velocity universal joint which can provide an improved strength in a stem portion by simple and effective countermeasure. The constant velocity universal joint include a bowl-shaped mouth portion and an outer joint member having the stem portion with a se... | 04/11/2006 |
| 5160108 | Process and tool for producing a barrel for a telescopic universal transmission joint A barrel to be formed has internal tracks of circular profile which abut ridges (4). The process starts with a sheet-metal blank which is arranged around an inner shaping mandrel equipped with protuberances integral or rotatably attached and defining shap... | 11/03/1992 |
| 4470288 | Manufacturing method and apparatus for shell of universal-joint Manufacturing method for a tubular shell of a constant velocity universal-joint for flexibly coupling two rotary shafts, to one of which the shell is fixed at a flange thereof. The method comprises a groove and preliminary flange forming process and a fla... | 09/11/1984 |
| 4453395 | Shell of a universal-joint and a manufacturing method therefor A shell for a universal joint for flexibly coupling two rotary shafts. The shell is constructed using a manufacturing technique to produce a shell of light weight and excellent strength. The shell generally has a hollow cylindrical configuration and is se... | 06/12/1984 |
| 4381659 | Method of manufacturing universal joint housing A housing for a tri-pot universal joint is manufactured from a tube blank which is cold formed in a two-step indenting process. The indenting process forms the middle of the tube into a tri-lobal section for broaching internal drive tracks while leaving t... | 05/03/1983 |