"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 |
| 7036854 | Flush bolt A flush bolt mechanism to be mounted into a recess at the vertical edge of an inactive door of a pair of swinging doors. The flush bolt mechanism has a manually-activated trigger, a shaft connected to the trigger by a pin, a spring clip biasing the shaft, and a bolt... | 05/02/2006 |
| 6065785 | Patio door limiter A limiter or stop for a sliding door or sliding panel is provided. The limiter includes a shaft disposed within the escutcheon that is connected to a head. The head includes two spaced-apart holes for frictionally receiving locking rods or bars. The head ... | 05/23/2000 |
| 5287245 | Computer having ejectable keyboard ejected by damping device A keyboard storage and retrieval system for a computer is provided, the system comprising a flat panel display, an enclosure, a removable keyboard slidably attached to the enclosure, and a latching system for lockingly securing the removable keyboard to t... | 02/15/1994 |
| 5253905 | Door locking system A door locking system for attachment to an outwardly opening door which engages the door frame and which has a panic bar movable towards the door for disengaging the locking system. The locking device includes an outer sleeve fixedly mounted to the interi... | 10/19/1993 |
| 5004287 | Locking device for removable tailgate assembly A locking device is provided for a removable tailgate on a conventional pickup truck. The tailgate assembly is supported by a pair of hinges located at the bottom of the tailgate for opening movement about a horizontal axis, one of the hinges comprising a... | 04/02/1991 |
| 4813251 | Four point locking system for storage cabinets A four point locking system for a storage cabinet having a pair of outwardly pivotable doors which provide access to the cabinet interior. The locking system includes a lock bar vertically disposed in each door and adapted to be moved downwardly into the ... | 03/21/1989 |
| 4686740 | Stopper for door A stopper which has a rod projected from the lower end opening in a hollow body to be slidable in upward and downward directions and mounted to be urged by the lifting force of a spring, a pedal attached to the rod, and an actuator formed symmetrically wi... | 08/18/1987 |
| 4643006 | Lock having an external bolt unlocking device A lock comprising a day bolt (1) and a night bolt (2), said day bolt (1) being urged by a spring (8) to an extended locking position and being retractable by a handle-operated tumbler (5) to a releasing position, said night bolt (2) urged by a spring to a... | 02/17/1987 |
| 4634155 | Power actuated door locking and monitoring assembly An improved door locking and monitoring assembly is provided which is power activated. The assembly comprises a housing disposable in a door frame and defining a passageway which has a bolt slidably disposed therein and lockset means in the door member. A... | 01/06/1987 |
| 4580423 | Garage door lock mechanism An improved garage door lock mechanism includes a housing, a crank, a slider, a catch and a single, multipurpose biasing member. The elements are adapted such that the biasing member both biases the slider from a locking position and biases the catch to c... | 04/08/1986 |
| 4552392 | Hold open device An apparatus for selectively holding a door of a vehicle in a plurality of discrete positions. The apparatus includes a rod reciprocatably disposed within a body fixedly attached to the door. The rod is insertable into a plurality of openings within a bra... | 11/12/1985 |
| 4501479 | Device for safety-locking a cover of a housing of a magazine of a camera and camera in which such a device is utilized The invention is applied to a cover of a housing which is positioned by sliding into grooves provided for this purpose in the edges of the housing or of the cover. The invention consists in that the housing is provided on the inside with a shaft constitut... | 02/26/1985 |
| 4495787 | Locking means for battery, etc. A lock for securing an automobile storage battery of other automatic accessory from being stolen when the vehicle is left unattended, the lock consisting of a pair of L-shaped brackets securely mounted on an existing battery tray replacing the battery hol... | 01/29/1985 |
| 4428606 | Latchset and strike assembly for doors A casing for support from the free swinging edge of a door is provided and a latch bolt is shiftably supported from the casing for movement between projected and retracted positions. The bolt is spring-biased toward the retracted position and a strike is ... | 01/31/1984 |
| 4099752 | Electric lock An electric lock of a configuration to facilitate its mounting in the limited space of a conventional door structure or door frame structure, in which an actuating solenoid for the bolt is mounted so that its plunger will have an axis of movement in right... | 07/11/1978 |
| 4055360 | Security lock A security lock comprising a tube having inner and outer ends and a passage extending between such ends, and a shaft including first and second shaft sections interconnected for pivotal movement relative to each other. The shaft has inner and outer end po... | 10/25/1977 |
| 4021065 | Electric lock An electric lock of a configuration to facilitate its mounting in the limited space of a conventional door structure or door frame structure, in which an actuating solenoid for the bolt is mounted so that its plunger will have an axis of movement in right... | 05/03/1977 |
| 3989286 | Device for arresting a door An arresting arrangement is mountable on the lower edge of a door adjacent to the floor and is movable between an inoperative and an operative position. A biasing spring permanently biases the arrangement to the inoperative position, and a latching arrang... | 11/02/1976 |
| 3958820 | Door lock with automatic unlocking means A lock mechanism including a bolt spring biased toward an unlocked position. Bolt release means including a lever movably mounted on a lock base retaining the spring biased bolt in a locked position. Contact means carried by said lever responsive to hand ... | 05/25/1976 |