Abstract: Systems and techniques for facilitating automatically coordinated social buying are provided. In various embodiments, a processor can receive an electronic request from a merchant device, which identifies a team deal. In various aspects, the processor can access a plurality of transactional browsing histories that are recorded by a respectively corresponding plurality of monitorial browser extensions, with each monitorial browser extension being installed on a respectively corresponding client device. In various instances, the processor can execute a machine learning model on each transactional browsing history, thereby determining whether the transactional browsing history demonstrates interest in the team deal. In various cases, for each transactional browsing history that demonstrates interest in the team deal, the processor can invite a user of a client device corresponding to the transactional browsing history to participate in the team deal.

Abstract: A goniometer has three potentiometers with axes of rotation that intersect at a point for measuring angular range of motion of an anatomy, such as of the spine or jointed appendages. The intersecting axes facilitate calculation of angle based on potentiometer output and allow the rotations on each of the three axes to be measured independently and simultaneously without mechanical or electrical cross talk. The angular measurements may be recorded on a computer for analysis and playback and may be continuously captured over a range of motion. The captured data may be compared to samples from the same person or others to aid in assessment of function.

Abstract: A burner installation includes a burner housing (1), a burner mounted in the burner housing, and a burner flame monitoring device (14) for detecting the presence of a flame in the burner. The monitoring device (14) is able to provide a signal indicating the presence of the flame in the burner, the monitoring device being detachably mounted on the burner housing (1). A magnet (22) and sensor (17) for detecting the proximity of the magnet are provided. One of the magnet (22) and sensor (17) is secured in fixed relationship to the monitoring device (14) and the other of the magnet and sensor is secured in fixed relationship to the burner housing (1), whereby the sensor (17) is able to detect if the monitoring device (14) is detached from the burner housing.

Abstract: A resistor having a diffused impurity region in a semiconductor substrate, an insulated gate surrounding and defining the resistor, and a pair of separated conductive contacts to the diffused region within the boundary of the insulated gate for applying and receiving current passing through the resistor.

Abstract: A tri-state output driver comprised of a pair of complementary field effect transistors (CMOS FETs) having sources and drains connected in a series circuit between a voltage rail and ground, apparatus for applying similar logic high and low input signals to respective gates of the FETs whereby an output terminal connected in a circuit between the sources and drains of the FETs is driven toward ground or the voltage rail respectively, or opposite polarity input signals to the gates for causing the FETs to assume a high impedance, and apparatus for maintaining a voltage across the source and drain of the FET which is connected in a circuit between the voltage rail and the output terminal, at less than a lower of an FET threshold of conduction voltage or diode turn-on voltage greater than the voltage of the voltage rail, during the high impedance state, so as to maintain the latter FET in a high impedance state even when a voltage at the output terminal is equal to a voltage which is higher than an FET threshold

Abstract: An electrostatic discharge (ESD) protection structure for protection of a circuit to which an operation voltage is to be applied, comprising a silicon controlled rectifier (SCR) connected between ground and a pad of the circuit to be protected, the SCR including a resistor apparatus connected to the pad for controlling the breakdown voltage of the SCR, and apparatus for controlling the resistor apparatus to a high resistance value in the absence of the application of the operation voltage whereby the SCR is controlled to break down at a low ESD voltage which is lower than a circuit damaging voltage, and to be of low resistance value upon the application of the operation voltage whereby the SCR is controlled to break down at an ESD voltage which is higher than the low ESD voltage.

Abstract: An integrated circuit analog crosspoint switch FET array which utlilizes considerably reduced silicon substrate area than previously. In a preferred embodiment, pairs of the separate diffused regions of different FETs which are connected to the same input are common, forming separate single diffused regions. The separate single diffused regions and the central single diffused regions alternate continuously in a row, separated by the channel regions forming the various transistors. The result is a continuous row of transistors having common diffused regions, except for the transistors at the end of the row, which have their outer diffused regions not in common with any other.

Abstract: A latchup and electrostatic discharge protection circuit for an analog reference or bias voltage power supply input connected between an input power providing terminal of the power supply and a power rail of a CMOS integrated circuit having a parasitic latch device. The protection circuit comprised of three field effect transistors close-circuits a path from the power supply input to the power rail for normal power supply conditions and open-circuits the path for excessively positive and negative voltages at the power supply input, thereby safeguarding the CMOS integrated circuit from currents resulting from the excessive positive and negative voltages.

Abstract: A craft, especially an inflatable dinghy, having a manually operable baler ystem comprising a flexible tube passing through the floor of the craft, a funnel mouth to the free end of the tube, and a non-return valve disposed to prevent water entering the craft by the tube, the tube being long enough to permit the funnel to be raised above the normal outside water level when the craft is floating loaded.