Did You Know...
...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.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6792547 | Digital integrated apparatus, image input-output system, and user authentication method The invention relates to a digital integrated apparatus capable of registering and fetching image data, and has an object to solve various problems resulting from the necessity of the user authentication at the time of using the apparatus. Specifically, it is arrang... | 09/14/2004 |
| 4863045 | Rotary railway drawbar coupler A rotary railway drawbar coupler is provided which comprises two elongated shank members each having a convex butt surface at one end and a generally circular butt surface at the other end. The two elongated shanks are positioned between the two railway c... | 09/05/1989 |
| 4700854 | Open top draw bar arrangement having removable wedge A slackless draw bar coupler arrangement in which the car has a draw bar pocket with an open top, a slotted draft plate and a buff plate and the draw bar has a bar body with a spherical head connected to the body by a neck. Located about the neck is a thr... | 10/20/1987 |
| 4580686 | Slackless self-adjusting rotary drawbar for railroad cars A slackless drawbar arrangement for unit train service and the like including a drawbar having enlarged butt end portions each provided with essentially spherical buff and draft load bearing surfaces on the rear and forward surfaces thereof. The enlarged ... | 04/08/1986 |
| 4386880 | Trailer transporting rail-way car A railway transport vehicle including a single load carrying beam having a novel coupling mechanism provided at each end and with one end including a rail truck and hydraulic lifters for lifting that end of the beam from a lowered position to a trailer ax... | 06/07/1983 |
