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Robert Mushet received a patent for methods of manufacturing steel.
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| Number | Title | Issue Date |
| 5160925 | Short hop communication link for downhole MWD system The short hop communication link includes a sensor module positioned downhole from a motor in a well. The module includes sensors that monitor operational, directional and environmental parameters downhole and provide an electrical data signal indicative ... | 11/03/1992 |
| 5089779 | Method and apparatus for measuring strata resistivity adjacent a borehole The method and apparatus relies on a modified induction approach and preferably is incorporated into a metal drill collar for MWD measurements. Directional nulls are created in a primary changing magnetic field formed in a formation by a transmitting ante... | 02/18/1992 |
| 5067114 | Correlation for combinational coded telemetry A unipolar, RZ, constant width pulse telemetry is achieved in the combinatorial set, or any desired subset of pulse sequences thereof. Each input datum W is in one-to-one correspondence with a particular pulse sequence and the correspondence of datum with... | 11/19/1991 |
| 5027129 | Gimballed antenna A modified subterranean antenna structure for use in boreholes that pivotally balances a separate core member within the hollow interior of a fixed winding member in order to filter out mechanically induced vibrations from the core. The mechanical natural... | 06/25/1991 |
| 4953616 | Solenoid actuator and pulse drive A subsurface valve-actuator combination for well production tubing is described. The valve is urged to closed position but held open by a battery-operated latch of the actuator. A receiver-relay in the battery-actuator circuit maintains a switch closed to... | 09/04/1990 |
| 4908804 | Combinatorial coded telemetry in MWD A unipolar, RZ, constant width pulse telemetry is achieved in the combinatorial set, or any desired subset of pulse sequences thereof. Each input datum W is in one-to-one correspondence with a particular pulse sequence and the correspondence of datum with... | 03/13/1990 |
| 4878053 | Actuation method A subsurface valve-actuator combination for well production tubing is described. The valve is urged to closed position but held open by a battery-operated latch of the actuator. A receiver-relay in the battery-actuator circuit maintains a switch closed to... | 10/31/1989 |
| 4823125 | Method and apparatus for stabilizing a communication sensor in a borehole A method and apparatus for stabilizing a communication sensor in a borehole is described. The principle embodiment described includes a pair of centralizers at opposite ends of the housing for the communication sensor to maintain each of such respective e... | 04/18/1989 |
| 4787093 | Combinatorial coded telemetry A unipolar, RZ, constant width pulse telemetry is achieved in the combinatorial set, or any desired subset of pulse sequences thereof. Each input datum W is in one-to-one correspondence with a particular pulse sequence and the correspondence of datum with... | 11/22/1988 |
