"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 |
| 6428708 | Filter apparatus and method A filtering apparatus including a fluid monitoring head and a replaceable filter cartridge removably fastened to the head. The fluid monitoring head includes a shut off mechanism for interrupting fluid flow through the cartridge when a predetermined quant... | 08/06/2002 |
| 6195160 | Illuminating means for refractometer An illuminator for use in a refractometer having a body housing, a sample cover assembly, a prism assembly and measuring assembly for measuring the composition and density of a substance. The illuminator includes a light source, a power source for operati... | 02/27/2001 |
| 6055796 | Bag spreader and adjuster for a bagging machine load station A packaging machine and process for loading bags of a novel web of side connected bags are disclosed. The web is fed through a bagger section by a pair of grooved main transport belts and a pair of lip transport belts each disposed in the groove of the as... | 05/02/2000 |
| 6044366 | Use of the UNPIVOT relational operator in the efficient gathering of sufficient statistics for data mining The invention concerns a method and apparatus for generating a tabulation of counts of occurrences of value combinations of a set of attributes over a relation consisting of a set of database records. The gathered counts (also referred to as sufficient st... | 03/28/2000 |
| 5510685 | Electric motor control based on conductive contact of machine component with operator for injury prevention A unit for controlling the operation of the electric motor is provided together with a control device, electrically connected to the body of the operator, to act on the control unit via a relay means in such a manner as to halt and reverse the rotation of... | 04/23/1996 |
| 5307647 | Food serving refrigerant device A conveniently stackable, storable, transportable and displayable food service device utilizing temperature maintaining refrigerant units to provide a relatively convenient and inexpensive method of refrigerating, transporting and serving food is provided... | 05/03/1994 |
| 4367122 | Method for anodizing aluminum Method of anodizing an aluminum workpiece wherein the workpiece and belt of cloth fabric is moved through a contact zone over an electrically conductive rigid backing member. The relative speeds of the workpiece and the belt are adjusted so that the belt ... | 01/04/1983 |
| 4252473 | Composite pile and method of manufacture A composite pile includes a wooden section and a helically corrugated shell secured to the wooden section by a transition fitting. The transition fitting is fitted telescopically to a tubular end portion of the shell by a circumferential weld which is emb... | 02/24/1981 |
| 4250367 | Snap action switch blades A snap action switch blade has two resilient legs which project from an integral base portion beyond and on each side of a tongue to which an operating force is applied. The legs are joined together by a contact element which is welded to two inwardly pro... | 02/10/1981 |
| 4198950 | Dressing device for wheels or the like A dressing device for attachment to a machine of the type used for dressing, grinding and shaping operations on a wheel, or the like. A collar is attached to the frame or hub of a motor housing through which the spindle for the grinding wheel extends. The... | 04/22/1980 |
| 4170063 | Knife with removable blade housing A hand knife having a ring-like rotary blade the diameter of which is considerably greater than its axial length rotated by a motor in a handle extending normal to the axis of rotation of the blade. The blade of the knife is rotatably supported in a housi... | 10/09/1979 |
| 4148337 | Free delivery return valve and associated system A free delivery controlled return valve, of the type employed in fluid power hoisting apparatus, which controls the speed at which a load is lowered as a function of load magnitude. An improved valve structure is disclosed which overcomes false load signa... | 04/10/1979 |
| 4146257 | Closure control mechanism A low silhouette closure control mechanism especially designed for a swinging or pivoted door of a highway vehicle, such as, a truck or trailer. The mechanism includes a plurality of cam-type latch or bolt members welded to an elongated shallow channel me... | 03/27/1979 |
| 4145008 | Waste material pumping apparatus A waste material distribution system including a holding tank, a self-priming centrifugal pump located above the liquid level in the tank having its suction inlet connected to a vertical drop pipe, a cutter plate having flow ports therethrough at the mout... | 03/20/1979 |
| 4142291 | Trimming knife A manually held and manipulated knife for trimming a comestible product such as meat having a frame or frame assembly including a hand grasp or handle part extending radially outwardly from a ring-like part of short axial length and of considerable greate... | 03/06/1979 |
| 4124133 | Molten metal delivery carrier An overhead monorail molten metal delivery self-propelled carrier comprising a carrier frame structure support on an overhead monorail, a power actuated hoist on the carrier frame connected by depending flexible members to a second movable structure or ca... | 11/07/1978 |
| 4116134 | Hangers for overhead suspended track An overhead suspended monorail type material handling system or apparatus comprising a rail having a web and a transversely extending flange on each side along its upper edge and a wider flange on each side along its lower edge, a plate-like member or cle... | 09/26/1978 |
| 4116008 | Gutter manipulating apparatus and method An apparatus and method is disclosed for manipulating a gutter to facilitate the dumping of debris from the gutter. Mounting structure supports the gutter for rotation about a longitudinal axis of the gutter, the longitudinal axis being located within the... | 09/26/1978 |
| 4074363 | Apparatus for generating plastic foam The disclosed apparatus includes a pair of passages which conduct plastic foam component materials to a reaction chamber where the component materials are combined and a foam producing reaction is effected. A variable flow regulating valve is disposed in ... | 02/14/1978 |
| 4064083 | Pattern material composition For use in making investment molds by the lost pattern process, a pattern material which is machinable and has the capability of being melted out of the molds without cracking them, the material consisting basically of an ethylene-vinyl resin and at least... | 12/20/1977 |
| 4024470 | Eddy current detector for hot test pieces having coolant fluid and purge features An eddy current flaw detection apparatus which is particularly adapted for inspecting articles at elevated temperatures. A plurality of detectors are supported about at least a portion of a workpiece path of travel to detect and locate flaws in workpieces... | 05/17/1977 |
| 4024398 | Data derandomizer and method of operation for radiation imaging detection systems A nuclear imaging system includes an analog signal processor which features analog data derandomization for minimizing data loss due to pulse pile-up. A scintillation detector provides a sequence of analog data pulses to the signal processor, the data pul... | 05/17/1977 |
| 3930611 | Air conditioning control system and method A multiple zone air conditioning control system is disclosed in which air temperatures in respective individual zones are governed according to signals derived from sensed air temperatures in the respective zones and sensed temperature of air discharged t... | 01/06/1976 |