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 |
| 8137143 | Battery clamp A battery clamp assembly connecting an electrical wire to a battery terminal includes a body having a clamp cavity and at least one connection socket for receiving the electrical wire, a clamp device positioned in the clamp cavity, a compression wedge positioned in ... | 03/20/2012 |
| 7527534 | Cable clamping device A cable management device includes a case, a cable-clamping plate and a sheltering plate. A cable is clamped by the cable-clamping plate. Upon rotation of the sheltering plate, the cable is wound inside of the case. The cable-management device is cost-effective and ... | 05/05/2009 |
| 7494385 | Electrical connector with a wedge and lubricant An electrical connector assembly for power utility transmission conductors includes a first conductive member having a tap conductor engagement surface adapted for interfacing with a tap conductor and a main conductor engagement surface adapted for interfacing with ... | 02/24/2009 |
| 6174207 | Battery terminal connector A battery terminal connector for a quick and easy way to connect and disconnect battery cables to a battery. The battery terminal connector includes a housing having an open top end, an open bottom end, an open side, a first side wall, and a second side w... | 01/16/2001 |
| 5595511 | Battery terminal A battery terminal for a terminal post of a battery includes a terminal body formed by a single plate. The terminal body has top and bottom terminal members each continuous to top and bottom tightening members. The top and bottom tightening members are pr... | 01/21/1997 |
| 5584730 | Battery terminal A battery terminal for a terminal post of a battery includes a terminal body formed by a single plate. The terminal body has top and bottom terminal members each continuous to top and bottom tightening members. The top and bottom tightening members are pr... | 12/17/1996 |
| 5558544 | Battery terminal A battery terminal for a terminal post of a battery includes a terminal body formed by a single plate. The terminal body has top and bottom terminal members each continuous to top and bottom tightening members. The top and bottom tightening members are pr... | 09/24/1996 |
| 5445907 | Battery terminal Notches are provided on the inside circumference surface of the annular post fittings of a battery terminal fit over a battery post. The sharp tips of these notches bite into the outside circumference surface of the battery post to prevent the battery ter... | 08/29/1995 |
| 5302142 | Battery terminal A battery terminal for fixing a circular electrode engaging portion thereof to an outer surface of a battery post, wherein a rotatable nut interposed between the tightening plates in such a manner that a supporting shaft projecting from each of opposed si... | 04/12/1994 |
| 5277629 | Battery clamp connectors A battery clamp for connection of electrical cables to a terminal post of an electric storage battery has a body of electrically conductive material an aperture formed therethrough to accommodate the terminal post and includes cam operated locking means f... | 01/11/1994 |
| 3990769 | Battery terminal A battery terminal particularly for vehicle batteries is described, and which includes a wedging member operable by screw means including an easily accessible, manually operable knob which can be turned to draw the wedging member firmly into engagement be... | 11/09/1976 |
