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4677847 Automotive engine oil monitoring system
New Patents
4677387 PACKAGE QUALITY MONITOR Heinz Mutter, Hans-Jorg Sommer, Felix Graf, Armin Wirz, Winterthur, Switzerland assigned to Rieter Machine Works Ltd The monitor is spaced a small distance from the curved path of the travelling thread to sense defects in the thread. In one embodiment, the monitoring means is spaced from the winding surface of a chuck to sense broken threads or an accurate build-up of the thread package. The monitoring means includes a detector head with a charge collector rod for sensing changes in electrical potential of the rod due to contact with a travelling thread part. The monitoring means can be moved away from the chuck to maintain a constant distance from the thread package being wound on a bobbin tube on the chuck.
4677430 METHOD AND APPARATUS FOR OPERATING A DISPLAY MONITOR Richard J Falkman, Charles Varvaro assigned to American Telephone and Telegraph Company; AT&T Bell Laboratori A method and an apparatus for operating a display monitor to prevent burn-in of the screen. The entire display is imperceptibly moved in both vertical and horizontal directions by changing the temporal relationship between the information signal transmitted to the monitor and the signals used to synchronize the scanning of the screen.
XIX
microprocessor controls the switching of the multiplexer according to the selection made by an operator. The first channel is displayed during the first half of the horizontal display sweep, and the second channel is displayed during the second half, the horizontal sweep encompassing two horizontal lines of video.
4677847 AUTOMOTIVE ENGINE OIL MONITORING SYSTEM Mitsutaka Nakamura, Takeo Sawatari, Toshihiro Sugiura assigned to Aisin Seiki Kabushiki Kaisha The present invention describes a method and apparatus for monitoring and indicating engine oil deterioration during the period of the oi1£3 s useful life in an internal combustion engine. The system and method permits a determination of the rate of deterioration of the engine oil as a function of oil temperature or RPM of the engine and provides a continous output signal representing the remaining useful life of the oil which is provided to the driver when desired. The present invention therefore, estimates the time when the oil will reach an undesirable deterioratJon level during the course of operation of the engine rather than indicating, as many prior art systems, only when the oil reaches an undesirable level requiring an oil change. + RE
4677851 METHOD AND APPARATUS FOR MONITORING THE DENSITY OF A LIQUID James A McAuley
4677481 DUAL DISPLAY MONITOR Dan H Nicholas assigned to Tektronix Inc A waveform monitor for television has dual video channels displayed simultaneously sideby-side. The two channels are synchronized with each other or with an external sync signal and are input to a multiplexer prior to the display. A
Disclosed is a method and apparatus for measuring the density of a liquid, such as a drilling mud, by continuously flowing a smaple of the liquid through a container having a fixed predetermined volume. The container is supported by at least one bed of pressurized fluid. The pressure of the fluid is varied in response to fluctuations in the weight of the liquid sample in the container. A pressure transmitter monitors the pressure level in the bed and produces a signal indicative of the density of the liquid sample.
4677387 PACKAGE QUALITY MONITOR Heinz Mutter, Hans-Jorg Sommer, Felix Graf, Armin Wirz, Winterthur, Switzerland assigned to Rieter Machine Works Ltd The monitor is spaced a small distance from the curved path of the travelling thread to sense defects in the thread. In one embodiment, the monitoring means is spaced from the winding surface of a chuck to sense broken threads or an accurate build-up of the thread package. The monitoring means includes a detector head with a charge collector rod for sensing changes in electrical potential of the rod due to contact with a travelling thread part. The monitoring means can be moved away from the chuck to maintain a constant distance from the thread package being wound on a bobbin tube on the chuck.
4677430 METHOD AND APPARATUS FOR OPERATING A DISPLAY MONITOR Richard J Falkman, Charles Varvaro assigned to American Telephone and Telegraph Company; AT&T Bell Laboratori A method and an apparatus for operating a display monitor to prevent burn-in of the screen. The entire display is imperceptibly moved in both vertical and horizontal directions by changing the temporal relationship between the information signal transmitted to the monitor and the signals used to synchronize the scanning of the screen.
XIX
microprocessor controls the switching of the multiplexer according to the selection made by an operator. The first channel is displayed during the first half of the horizontal display sweep, and the second channel is displayed during the second half, the horizontal sweep encompassing two horizontal lines of video.
4677847 AUTOMOTIVE ENGINE OIL MONITORING SYSTEM Mitsutaka Nakamura, Takeo Sawatari, Toshihiro Sugiura assigned to Aisin Seiki Kabushiki Kaisha The present invention describes a method and apparatus for monitoring and indicating engine oil deterioration during the period of the oi1£3 s useful life in an internal combustion engine. The system and method permits a determination of the rate of deterioration of the engine oil as a function of oil temperature or RPM of the engine and provides a continous output signal representing the remaining useful life of the oil which is provided to the driver when desired. The present invention therefore, estimates the time when the oil will reach an undesirable deterioratJon level during the course of operation of the engine rather than indicating, as many prior art systems, only when the oil reaches an undesirable level requiring an oil change. + RE
4677851 METHOD AND APPARATUS FOR MONITORING THE DENSITY OF A LIQUID James A McAuley
4677481 DUAL DISPLAY MONITOR Dan H Nicholas assigned to Tektronix Inc A waveform monitor for television has dual video channels displayed simultaneously sideby-side. The two channels are synchronized with each other or with an external sync signal and are input to a multiplexer prior to the display. A
Disclosed is a method and apparatus for measuring the density of a liquid, such as a drilling mud, by continuously flowing a smaple of the liquid through a container having a fixed predetermined volume. The container is supported by at least one bed of pressurized fluid. The pressure of the fluid is varied in response to fluctuations in the weight of the liquid sample in the container. A pressure transmitter monitors the pressure level in the bed and produces a signal indicative of the density of the liquid sample.