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| Number | Title | Issue Date |
| 4978434 | Apparatus and method for measuring SO2 using a zirconium oxide analyzer An arrangement for determining an amount of SO2 present in the gaseous emissions of a combustible process utilizes an oxygen measuring device and the resultant O2 measurement to make an inferred determination of such SO2 m... | 12/18/1990 |
| 4963036 | Vision system with adjustment for variations in imaged surface reflectivity The image pipeline for a vision system includes a series of digital image processing boards controlled by a computer. A video camera generates from a laser beam reflected from the target surface an RS-170 analog video signal which is converted to a digita... | 10/16/1990 |
| 4928097 | Real time process control using multiple communication networks A communications arrangement for a distributed process control system operable to control an industrial process where different types of data must be communicated between a number of control drops or stations in varying timing priorities includes a first ... | 05/22/1990 |
| 4862927 | Double-ended termination and routing arrangement for an automated wiring system A wire harness assembly arrangement acquires, prepares and routes various sections of wire by means of a wiring tool apparatus attached to a robotic manipulator. The tool apparatus moves coincident with an arm of the process controlled robotic manipulator... | 09/05/1989 |
| 4852030 | Time-of-use-meter with a calendar of cyclic events A time-of-use meter is provided with a means for storing a plurality of identifiers that each represent a cyclic event. These cyclic events are described in such a way that a single word of storage is sufficient to represent numerous occurrences of the cy... | 07/25/1989 |
| 4843576 | Temperature control arrangement for an extruding process An arrangement for controlling the process temperature in an industrial process involving an extruding operation includes a summing element which sums the difference between the process temperature and a setpoint temperature with the rate of change of the... | 06/27/1989 |
| 4841281 | Apparatus for controlling a switching amplifier An apparatus for controlling the output of a switching amplifier includes a signal dividing circuit which generates a delayed replica of the carrier signal and a doubled signal having twice the carrier frequency. The doubled signal is effective for establ... | 06/20/1989 |
| 4827369 | Circuit interrupter apparatus with a selectable display means A circuit interrupter includes a circuit arrangement for sampling a conditioned current value and determining operating characteristics related to the current flow through an electrical circuit. Also included is a circuit arrangement for comparing the ope... | 05/02/1989 |
| 4827415 | Electropneumatic door control system An electropneumatic door control, particularly for the control of doors in public transportation, which includes for the purpose of detecting the respective position of the door linear motion sensors (1, 2) which are mounted on the pneumatic door cylinder... | 05/02/1989 |
| 4812025 | Optical interface for a magneto-optical current transducer A magneto-optical current measuring device includes a collimating lens arrangement for focusing a light signal into a parallel beam of light, which beam of light, when polarized is communicated through a Faraday rotator which is disposed in surrounding pr... | 03/14/1989 |
| 4809125 | Circuit interrupter apparatus with a style saving rating plug A circuit interrupter includes a circuit arrangement for sampling a conditioned current value and determining operating characteristics related to the current flow through an electrical circuit. Also included is a circuit arrangement for comparing the ope... | 02/28/1989 |
| 4805114 | Economical dispatching arrangement for a boiler system having a cogenerative capability An economical despatching arrangement for despatching load and fuel assignments on a multi-boiler cogenerative type steam generating plant includes a logic arrangement of determining a present value of flow of each fuel to each boiler, a logic arrangement... | 02/14/1989 |
| 4794484 | Circuit interrupter apparatus with a style saving override circuit A circuit interrupter includes a circuit arrangement for sampling a conditioned current value and determining operating characteristics related to the current flow through an electrical circuit. Also included is a circuit arrangement for comparing the ope... | 12/27/1988 |
| 4787750 | Gas spectrometer construction having an improved alignment feature An across-the-stack gas analyzing spectrometer has a radiation source assembly including a cylindrical tube 22 having, in succession from its outer end toward the stack end a radiation emission assembly 28, a first lens assembly 30, and an AOTF assembly, ... | 11/29/1988 |
| 4787035 | Meta-interpreter The present invention includes an interpreter in which a parser examines a message using grammar and lexical tables to produce a parse table. The parse table is compared to data needed in a semantics table to fire a rule. The firing of a rule causes a fun... | 11/22/1988 |
| 4771629 | System for chemical analysis An improved system for quantitative chemical analysis incorporates a chromatographic column. A radiation source of a predetermined range of wavelengths is in optical communication with an emerging specie from the chromatographic column by of a first optic... | 09/20/1988 |
| 4763261 | Wheel-speed detecting arrangement A wheel-speed detecting arrangement for detecting the wheel-speed of a vehicle having a fixed wheel-and-axle configuration includes a wheel generator connected to the wheel/axle configuration such that a first distance signal is produced indicating rotati... | 08/09/1988 |
| 4756494 | Vital switch control circuit A vital switch control circuit for a railroad switch machine includes a permanent magnet motor which is immune to stray or induced a.c. currents, and which is operable to either of two directions depending on the polarity of energy applied thereto. Switch... | 07/12/1988 |
| 4755196 | Air-drying apparatus An air-drying apparatus for use with compressed air-operated systems such as, for example, a vehicle suspension system, includes a housing having an inlet portion, a drying material portion, and an outlet portion. An activation piston is disposed within t... | 07/05/1988 |
| 4752853 | Circuit interrupter apparatus with an integral trip curve display A circuit interrupter includes a circuit arrangement for sampling a conditioned current value and determining operating characteristics related to the current flow through an electrical circuit. Also included is a circuit arrangement for comparing the ope... | 06/21/1988 |
| 4751606 | Circuit interrupter apparatus with a battery backup and reset circuit A circuit interrupter includes a circuit arrangement for sampling a conditioned current value and determining operating characteristics related to the current flow through an electrical circuit. Also included is a circuit arrangement for comparing the ope... | 06/14/1988 |
| 4746897 | Apparatus for transmitting and receiving a power line A transceiver provides a relatively constant output voltage from its linear amplifier by providing both current and voltage feedback to its operational amplifier. The present invention utilizes common components for both transmitting and receiving and pro... | 05/24/1988 |
| 4731586 | Electrical noise detector for detecting power line gap defects Apparatus for detecting gap-type defects in power line equipment in response to broadband radio frequency noise generated by such faults. The apparatus includes a radio receiver coupled to an antenna to receive the noise and provide first signals responsi... | 03/15/1988 |
| 4719471 | Angulated FM antenna An FM antenna utilizes a generally rigid conductive element, as a dipole segment, that is connected in electrical communication with a capacitive segment. The capacitive segment can be manufactured from a preselected length of coaxial cable with the centr... | 01/12/1988 |
| 4707679 | Magnetic tamper detector An electric meter is provided with a magnetically sensitive switch and a means for detecting the activation of the switch. A program is provided for sensing, recording and transmitting the status history of the magnetically sensitive switch to a remote de... | 11/17/1987 |
| 4703623 | Double-piston master cylinder with central booster-driven piston driving surrounding low pressure piston A dual-piston hydraulic brake master cylinder includes a large hydraulic piston which supplies an initial large brake fluid volume and a small hydraulic piston which continues to supply brake fluid to the brakes when the large piston stops moving forward ... | 11/03/1987 |
| 4690008 | Gearshift range preconditioning system A gearshift range preconditioning system includes a gearshift device which, when manually-operated to effect a gear-change, initiates a signal to an electronic logic circuit which is coupled to the vehicle to receive vehicle-operating characteristics such... | 09/01/1987 |
| 4685052 | Pulse train presence detector A pulse train presence detector for a system having a number of interruptible devices, consists of a pulse generator, interface device which receives a periodic trigger signal and outputs a pulse train signal in response thereto, the pulse train signal is... | 08/04/1987 |
| 4680436 | Proximity switch in mounting arrangement A contactless proximity switch and mounting arrangement for determining the position of a movable member within a cylinder which has two end covers secured on the cylinder by means of a plurality of tie rods, includes a switch housing which secures to one... | 07/14/1987 |
| 4665796 | Fluid flow control apparatus having a throttling arrangement A fluid flow control apparatus having an adjustable throttling arrangement for controlling the flow of fluid between working cylinders associated with sections of an articulated vehicle, has a housing which is essentially symmetric in shape. Two working c... | 05/19/1987 |
| 4660430 | Combination gear-selector, sensor device A combination gear-selector, sensor device for use with vehicle transmissions having a plurality of gear positions and certain special gear functions and being controlled by an electronic circuit includes a shift lever having a first, square magnet which,... | 04/28/1987 |
| 4656457 | Position-sensing potentiometer arrangement A position-sensing potentiometer arrangement for sensing the position of a movable piston and piston rod configuration within a linear actuator includes a first support member extending longitudinally within an open-ended recess formed in the rod and a sl... | 04/07/1987 |
| 4655255 | Electromagnetically-operated multi-way valve The invention relates to an electromagnetically-operated multi-way valve, which exhibits two valves (an inlet and an outlet) opposite one another. Corresponding to each of the two valves, there is an armature which interacts with a coil, located between t... | 04/07/1987 |
| 4652986 | Vital inverter driver A vital inverter driver includes an oscillator which, upon energization, outputs a signal of predetermined frequency to two identical parallel-arranged counter circuits, which step down the oscillator output to the desired frequency. One counter output is... | 03/24/1987 |
| 4651623 | Work cylinder having a piston member with an integral cushioning arrangement A work cylinder having a piston of single-body construction and a cushioning arrangement integrally formed on the piston includes a cylinder housing having a chamber formed therein divided into first and second work chambers by the piston. First and secon... | 03/24/1987 |
| 4649804 | Mechanical release arrangement for a fluid-pressure-operated braking cylinder A mechanical release arrangement for a fluid-pressure-operated braking cylinder having an emergency brake/parking brake feature includes a cylinder housing having formed therein a brake actuation portion, an emergency portion, an intermediate lever portio... | 03/17/1987 |
| 4649341 | Inductive measuring arrangement for determining the position of a movable core member An arrangement for determining the position of a core within a coil improves a voltage across the coil upon generation of an initiating voltage pulse. The initiating voltage pulse can originate from a microprocessor or other electrical timing logic circui... | 03/10/1987 |
| 4645148 | Fail-safe voltage-limiting circuit for an audio frequency overlay track circuit A fail-safe voltage-limiting circuit for an audio frequency-controlled railway track circuit includes a pair of NPN transistors arranged in the manner of a darlington pair, wherein the base connector of the first transistor receives an amplitude-modulated... | 02/24/1987 |
| 4639192 | Propeller pitch controlling arrangement having a fuel economizing feature A propeller pitch controlling arrangement having a fuel economizer feature for use on marine vessels, has a mode selector valve operable to a normal mode and an economizer mode. In the economizer mode, a first pilot signal is transmitted to a path selecto... | 01/27/1987 |
| 4633758 | Double-acting working cylinder having a piston-dampening arrangement A fluid-pressure-operated, double-acting working cylinder which dampens the final braking of the work piston, includes a cylinder housing with a movable work piston disposed therein, the work piston dividing the cylinder into two work chambers. A piston r... | 01/06/1987 |
