Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 6922455 | Gas-target neutron generation and applications Described herein are integrated systems for generating neutrons to perform a variety of tasks including: on-line analysis of bulk material and industrial process control (as shown in FIG. 1), security interrogation (as shown in FIG. 2), soil and enviro... | 07/26/2005 |
| 5784424 | System for studying a sample of material using a heavy ion induced mass spectrometer source A heavy ion generator is used with a plasma desorption mass spectrometer to provide an appropriate neutron flux in the direction of a fissionable material in order to desorb and ionize large molecules from the material for mass analysis. The heavy ion gen... | 07/21/1998 |
| 5515589 | In situ method for remotely operated, automatic contour mapping, machining and welding of piping A method for upgrading/repairing existing piping systems of a nuclear reactor without removal/replacement of the old piping. The process involves the steps of machining a counterbore of exposed corrosion-susceptible material and then depositing a corrosio... | 05/14/1996 |
| 4808368 | High voltage supply for neutron tubes in well logging applications A high voltage supply is provided for a neutron tube used in well logging. The "biased pulse" supply of the invention combines DC and "full pulse" techniques and produces a target voltage comprising a substantial negative DC bias component on which is sup... | 02/28/1989 |
| 4657724 | Neutron generator ion source pulser For use in a pulsed control system in a logging tool cooperative with a neutron generator, a pulsed ion source power supply is set forth in the preferred and illustrated embodiment. A string of field effect transistors (FET) connected between high voltage... | 04/14/1987 |
| 4581194 | Method and system for controlling an accelerator-type neutron system An accelerator-type neutron source employs a target, an ionization section and a replenisher for supplying accelerator gas. A positive voltage pulse is applied to the ionization section to produce a burst of neutrons. A negative voltage pulse is applied t... | 04/08/1986 |
| 4506263 | Data transmission system for logging tools A system for storing and transmitting pulse count information is disclosed wherein electrical pulses produced by logging tools, such as thermal neutron, are counted and stored downhole to remove the effect of lengthly transmission lines. In a further embo... | 03/19/1985 |
| 4487737 | Pulsed neutron generator control circuit A control and power supply circuit is illustrated in the preferred and illustrated embodiment for providing power to a pulsed neutron generator tube. The preferred and illustrated embodiment includes power supplies and control circuits for providing opera... | 12/11/1984 |
| 4432929 | Pulsed neutron generator tube power control circuit For use in providing control of a pulsed neutron generator tube and its associated power supplies, the preferred and illustrated embodiment of the control circuit senses the operative condition of the pulsed neutron generator tube by observing external in... | 02/21/1984 |
| 4404163 | Neutron generator tube ion source control system A pulsed neutron well logging system is disclosed having a novel ion source control system providing extremely sharply time defined neutron pulses. A low voltage input control pulse is utilized to produce a relatively sharp rising high voltage ion source ... | 09/13/1983 |
| 4288696 | Well logging neutron generator control system A pulsed neutron well logging system using a sealed off neutron generator tube is provided with a neutron output control system. The control system monitors the target beam current and compares a function of this current with a reference voltage level to ... | 09/08/1981 |
| 4092545 | Means and method for controlling the neutron output of a neutron generator tube Means and method for energizing and regulating a neutron generator tube having a target, an ion source and a replenisher includes providing a negative high voltage to the target and monitoring the target current. A constant current from a constant current... | 05/30/1978 |
| 3996473 | Pulsed neutron generator using shunt between anode and cathode A pulsed neutron generator for well logging is provided having a resistor connected between the anode and cathode. The resistor provides a direct current path whereby corona current can flow between the cathode and a corona point without the necessity for... | 12/07/1976 |
| 3984694 | Pulse width regulator for a pulsed neutron source A pulsed neutron system includes an accelerator tube having a target, an ionization section, and a replenisher for supplying accelerator gas. The power supplied to the replenisher is controlled to maintain the ionization pulse time duration within the upp... | 10/05/1976 |
| 3973131 | Pulsed neutron logging: multipurpose logging sonde for changing types of logs in the borehole without bringing the sonde to the surface Disclosed is a system for nuclear well logging in which neutron pulse time duration for a high energy neutron generator and the frequency of pulses are selected downhole in the tool by use of a coded signal transmitted by the cable from the earth's surfac... | 08/03/1976 |
| 3949232 | High-voltage arc detector A well-logging sonde employes a neutron generator. It has a high-voltage supply for the target of the neutron generator tube. The sonde includes an insulated high-voltage conductor for connecting the supply to target, and there is a metallic ring supporte... | 04/06/1976 |
