Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 6905152 | Slide bolt locking systems A slide bolt type of closure locking system is disclosed in various configurations in various orientations. A lever arm is used to operate the bolt slide. A detent arrangement normally keeps the lever arm in a nested rest position. The arm can be released from the d... | 06/14/2005 |
| 5590920 | Floor-mountable retractable roller device Environmentally employable in combination with a slidable-door type open-wall and for maintaining an angular-dog type slidable-door in tight opening-obstructed temperature-protective contact adjacently about the wall-opening of a said upright open-wall, a... | 01/07/1997 |
| 5201555 | Dogging mechanism A dogging mechanism for a bulkhead door on a ship, which uses a rotatable handle connected to a four bar parallel linkage to pivot a plurality of rollers over a plurality of wedge shaped lugs to tightly close the door and make it water tight when used wit... | 04/13/1993 |
| 4988131 | Interlocking sections for portable floors and the like Interlocking sections for portable floors and the like have a floor section (10) having interlocking members set in molded urethane (15) for connections along the edges of the floor sections (10). The interlocking members latch a male member (50) and a fe... | 01/29/1991 |
| 4867492 | Door latch assembly The present invention is directed to an improved door latch assembly having a rotatable member which is transparent or translucent and to which a door knob structure is coupled. The member is rotatably mounted between a pair of support plates, and the mem... | 09/19/1989 |
| 4073524 | Restraint assembly for a tractor hood A restraint assembly employed in conjunction with a resilient latch assembly for securing two adjoining elements together includes a pair of spaced walls carried by one of the elements and a pair of resilient rollers carried by the other element. The roll... | 02/14/1978 |
