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 |
| 4532431 | Method and apparatus for producing electrical energy from a cyclic combustion process utilizing coupled pistons which reciprocate in unison Method of and device for producing electric energy from a cyclic combustion process. The device includes two oppositely disposed aligned spark ignited internal combustion engine cylinders axially spaced from each other, means rigidly connecting the piston... | 07/30/1985 |
| 4517477 | Magnetic motor A plurality of permanent magnets are arranged to have spaced apart alternating opposite poles at the peripheral of the rotor. A stator magnet alternately attracts the first pole and repels the second pole of each sequential permanent magnet to cause rotat... | 05/14/1985 |
| 4512339 | Percussor application A percussor apparatus employing a reciprocal motor with improved performance characteristics is disclosed. The reciprocal motor is comprised of an armature, a solenoid or coil, a magnetic frame encompassing the armature and solenoid, and means for resilie... | 04/23/1985 |
| 4507579 | Reciprocating piston electric motor A reciprocating piston electrical motor includes at least one nonmagnetic cylinder housing forming a piston chamber wherein a magnetic piston is freely slidably mounted. Spaced separate coils of wire are wrapped about respective ends of the cylinder housi... | 03/26/1985 |
| 4498023 | Voice coil linear motor with integral capacitor A voice coil linear motor is described in which the armature is supported on a linear bearing attached to the magnet assembly. The magnet assembly comprises a permanent magnet attached to two cup-shaped members which define a gap in which the armature tra... | 02/05/1985 |
| 4468594 | Electromagnetic percussion implement A two-directional percussion implement selectively adaptable both for driving in and for extracting, e.g. piles, from the ground, includes two coaxial electromagnetic coils whose movable armatures are represented by extremities of a reciprocable ram. Oppo... | 08/28/1984 |
| 4308475 | Solenoid pump adapted for noiseless operation A solenoid-actuated fluid pump having reciprocable armature operable by a magnetic circuit and with structure in the flux path at the upper and lower air gaps to substantially change the reluctance across the air gaps as the armature moves beyond a predet... | 12/29/1981 |
| 4210831 | Involute lamination armature for a linear reciprocating motor A generally cylindrical armature for a linear motor includes an outer diameter region of involute laminate construction. Restricting the laminate assembly to an outer diameter region of the armature, which region constitutes a high magnetic flux density r... | 07/01/1980 |
| 4196365 | Magnetic motor having rotating and reciprocating permanent magnets A magnetic motor comprises a rotary shaft and a rotating disc coupled to rotate with the shaft. The rotating disc includes first, second and third magnets positioned at 120° intervals about the face of the disc. A pivotally mounted bracket is symmetrical... | 04/01/1980 |
| 4153851 | Magnetic coupling A rotor and base, rotatingly connected, are each provided with a plurality of magnet assemblies. The magnet assemblies on one of the rotor and base are fixed and the magnet assemblies on the other of the rotor and base are moved radially in synchronizatio... | 05/08/1979 |
| 3949249 | Electro-magnetic reciprocating motor A magnetic motor wherein a piston mounted magnet is reciprocated through a predetermined stroke in timed relation to polarity reversal of a pair of electro-magnetic assemblies at opposite axial ends of the piston cylinder. Polarity reversal and the intens... | 04/06/1976 |
