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"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 4845896 | Surface sampling device A device, utilizing a unique hemispherical cutter to remove a sample of material and to retain the sample of material for retrieval. The cutter is mounted on a chassis which can travel along the interior or exterior of the device to be sampled. The carria... | 07/11/1989 |
| 4836801 | Multiple use electrical connector having planar exposed surface An electrical connector which can be panel or in-line mounted, and accommodates coaxial, waveguide, or mono-conductor cables. The connector is comprised of two separable halves which mate to form continuous electrical connections. One connector half prese... | 06/06/1989 |
| 4827900 | Stove with external tubes for increasing heat dissipation A stove has a combustion chamber with front and rear ends. Fuel is fed into the front end and a chimney exhausts the products of combustion from the rear end. A multiplicity of tubes are external to, and parallel to the combustion chamber. Each tube is co... | 05/09/1989 |
| 4815986 | Self-aligning blind mate connector A self-aligning blind mate connector designed for surface mounting to existing RF coaxial pin and outer sheath ring of a sealed RF module. The two halves of the connector provide positive interlock upon engagement and allow for both axial and radial misal... | 03/28/1989 |
| 4814587 | High power self-regulating heater An improved performance ferromagnetic self-regulating heater. Constant alternating current is applied to a layered structure including at least one ferromagnetic layer. One or more layers of non-magnetic material is added to the ferromagnetic layer in suc... | 03/21/1989 |
| 4803765 | Index head An index head provided with a long rack and a short rack which are slided alternatively towards an index table by the movement of a pinion of a piston rod. The long rack which is characterized to move at a speed twice a forwarding speed of the piston rod,... | 02/14/1989 |
| 4803860 | Manipulation assistance device and method Apparatus for assisting in the determination of the combination of a safe lock by aiding a locksmith in the art of manipulation. This device replaces the locksmith's senses of sight, hearing and touch, used in manipulation of combination locks. Sight is r... | 02/14/1989 |
| 4805121 | Visual training apparatus A computer controlled visual display system utilizing a complex set of inputs to develop a video display of a preselected terrain. The computer program utilizes three dimensional topographical data in combination with an aerial photograph to generate a se... | 02/14/1989 |
| 4802400 | Air-carried missle launcher A missile launcher is provided with pyrotechnically-operated means for jettisoning the missile. The missile is hung under a sub-rail latched to the underside of the main launcher body and upon operation of the jettisoning means the sub-rail/missile combin... | 02/07/1989 |
| 4802509 | Wraparound closure for conduit protection Provided herein is a wraparound closure sleeve for environmentally sealing conduits employing a heat-recoverable sheet oriented to shrink in the direction of its width, a first strip of self-amalgamating material disposed along or near one edge of the she... | 02/07/1989 |
| 4799411 | Relating to the repetitive cutting of workpiece blanks The invention provides a method of working with a travelling head press to cut rows of identical workpieces across wide sheet material. The combination of the press and the means feeding the sheet material through it is so arranged that rows of workpieces... | 01/24/1989 |
| 4798139 | Solenoid-operated devices A solenoid-operated device, and especially a weapon-arming device, subject to inertial forces is provided in which the solenoid armature is operatively coupled to a counterbalancing mass operatively constrained to move in synchronism with but oppositely t... | 01/17/1989 |
| 4796448 | Lock with reference plate This invention relates to a lock where a key or a dial sets a set of elements into a unique configuration. The elements do not contain any information relating to the key. They are preferably all alike and, preferably, each of them terminates in a pointed... | 01/10/1989 |
| 4796447 | Lock with key isolation using transfer tumblers This specification describes a lock where a key is inserted into a key cylinder and where the key sets a series of transfer tumblers. The tumblers project from the key cylinder, and the tumblers, in turn, set a series of lock opening elements into their p... | 01/10/1989 |
| 4794656 | Emergency backboard A backboard for immobilizing and transporting injured persons and a head restraining device for employment with such a backboard is provided. The backboard includes a rigid support member, two head engaging members which are slidably received in a track a... | 01/03/1989 |
| 4795870 | Conductive member having integrated self-regulating heaters A self-heating and self-soldering bus bar for use in many applications. The pins of the bus bar are quickly and directly heated to a predetermined autoregulated temperature without significantly raising the temperature of the body of the bus. Thusly a bus... | 01/03/1989 |
| 4795886 | Temperature control in which the control parameter is the degree of imperfection in the impedance matching A temperature control system is disclosed for controlling heating current to a heater having an impedance which varies substantially with temperature. The change in impedance of the heater changes the degree of mismatch between the power transmission syst... | 01/03/1989 |
| 4794226 | Self-regulating porous heater device A self-regulating porous heater device regulates the temperature of fluid passing through it. This device includes at least one layer of a porous material which has a magnetic permeability inversely related to temperature over a given range. Due to conduc... | 12/27/1988 |
| 4793821 | Vibration resistant electrical coupling A connector accessory for electrical connectors containing a detent or locking member or members for preventing disconnection from an attached connector when the assembly is subjected to vibration, shock or other stresses. The accessory consists of a coup... | 12/27/1988 |
| 4789767 | Autoregulating multi contact induction heater Contacts of a multipin connector may be soldered to leads of a board of the like by forming coatings of magnetic materials on each contact and locating the contacts between poles defined by an air gap of the magnetic core, each pole having a separate pair... | 12/06/1988 |
| 4788404 | Self-soldering flexible circuit connector A flexible circuit which may be a strap or a board or the like has a plurality of conductors exposed on one surface in a predetermined array and a heater disposed on the opposed surface so as to heat the exposed conductors. The exposed conductors may have... | 11/29/1988 |
| 4788245 | Self-amalgamating material A material capable of self-amalgamation without adjunct heating and use as a wraparound tape at substantially the full range of ambient terrestrial temperatures composed of a rubber component, a polyisobutylene tackifier, a C2 -C3 po... | 11/29/1988 |
| 4783096 | Stacked airbag wheeled vehicle suspension system An air ride suspension system having very high (height) carrying and/or lift capabilities includes a pair of stacked, expandable airbags connected to the frame of a wheeled vehicle such that there is a lower beam for supporting the stack and an intermedia... | 11/08/1988 |
| 4780989 | Hydroponic assembly An integrated hydroponic system including subsystems for support and movement of plants, controlling the atmosphere around the plants and nutrient distribution. The support and movement subsystem features diverging trough-in-trough construction where the ... | 11/01/1988 |
| 4782429 | Long-life luminaires There is provided a luminaire primarily for use with exit signs and other emergency-type lighting comprising a series string of low-voltage, extremely long-life filaments positioned within a sealed enclosure for protection and electrically connected to a ... | 11/01/1988 |
| 4779983 | Beam splitter and spectrometer containing the beam splitter The beam splitter comprises an optical, parallel sided, plate having partially reflecting coatings applied on each half side in alternate halves and having opposite alternate uncoated half sides covered by respective matching transparent wedge plates whic... | 10/25/1988 |
| 4776414 | Drum weigher A weigher is provided for weighing drums, barrels and the like in which a point around the periphery of the bottom edge of the drum is rested on a low-level, weighing capsule, the diametrically opposite point remaining on the floor. The capsule is a disc ... | 10/11/1988 |
| 4775166 | Vehicle suspension beam-to-axle connection An axle-to-beam connection for a vehicle having a beam type suspension system is disclosed. The beam-to-axle connection includes an axle connection, a beam connection and a resilient member located therebetween. The resilient member forms a continuous pat... | 10/04/1988 |
| 4773598 | Multi direction dump body for trucks A dump truck body capable of dumping to either the right or left side or to the rear of the truck. The truck further includes a sand, salt or gravel spreader fed by a longitudinal auger running longitudinally from the front to rear of the truck body on ei... | 09/27/1988 |
| 4771151 | Self-heating lid for soldering to a box A lid to be bonded to provide a hermetic seal has bonded thereto a thermally autoregulating heater for activating a heat activated sealing and bonding material to produce the desired seal between the lid and box wherein the temperature is regulated to pro... | 09/13/1988 |
| 4769519 | Ferromagnetic element with temperature regulation A ferromagnetic element has current passed through it either by direct electrical connections or by induction. The current through the ferromagnetic element may be far greater than is necessary to heat the element above its effective Curie temperature. As... | 09/06/1988 |
| 4768177 | Method of and apparatus for alerting a patient to take medication A device for indicating when medication should be taken has plural compartments, each of which may store medication. An electrical signaling system emits take-medication signals from time to time, each of which said signals indicates (a) that medication s... | 08/30/1988 |
| 4768176 | Apparatus for alerting a patient to take medication A container for medication has four compartments, each of which may store medication. An electrical signaling system emits take-medication signals from time to time, each of which said signals indicates (a) that medication should be taken, (b) from which ... | 08/30/1988 |
| 4763644 | Spinal fixation A spinal scoliosis fixation implant comprises a plurality of devices which are associated with respective vertebrae and which are interconnected by a single semi-rigid wire, or by a cable with abutment ferrules. Each device may comprise a bone screw or ho... | 08/16/1988 |
| 4762594 | Apparatus and methods for sensing fluid components Provided herein is a method for accurate, reproducible analytical solution evaluation eliminating the need for a reference sensor by determining the activity of selected species employing species specific sensors and species combination sensors in conjunc... | 08/09/1988 |
| 4760254 | Apparatus and method for electron spin polarization detection Provided herein are a device and a method for determining the spin polarization of an electron beam where the device and method contemplate diffusely backscattering the beam from an electron opaque target, at a kinetic energy less than 10,000 electron vol... | 07/26/1988 |
| 4753530 | Analytical optical instruments An optical measuring system for measuring in situ by means of one or more fiber-optic probes reflection absorption fluorescence, phosphorescence and turbidity of a fluid or (for all but the last measurement) of a fluid-solid interface. High intensity puls... | 06/28/1988 |
| 4752673 | Autoregulating heater An autoregulating electrically shielded heater employs a structure of two magnetically permeable members of different Curie temperatures and preferably differing resistivities. The two members are in electrical contact with one another; having at their in... | 06/21/1988 |
| 4752864 | Constant voltage power supply A constant voltage power supply employs a circuit in which the average voltage over a specified period of time is maintained constant by a circuit for charging a voltage storage means with width modulated pulses applied several times during each specified... | 06/21/1988 |
| 4751570 | Generation of apparently three-dimensional images A stereo-camera head is provided, particularly for robotic applications, in which the parameters of focus, zoom and camera convergence are adjusted by remotely controlled motor drives. Camera separation distance and iris function can be similarly controll... | 06/14/1988 |
