Abstract: A lockdown system for use in a building including multiple rooms with doors providing access to the rooms, the lockdown system including: at least one room lockdown component provided in each of a plurality of the rooms, the room lockdown components comprising door-securing devices that are external of the doors and, in a deployed condition of the room lockdown components, are manually positioned inside said rooms to oppose inward movement of the doors and thereby block or secure the doors, the room lockdown components further characterized by a non-deployed condition in which the door-securing devices are positioned at storage locations inside the rooms, and wherein further each room lockdown component is operative to automatically signal initiation of a lockdown event when its door-securing device has been moved from its storage location; and at least one communication device operative to receive the signaled initiation of a lockdown event when any one or more of the door-securing devices have been moved fr

Abstract: A lockdown system for use in a building including multiple rooms with doors providing access to the rooms, the lockdown system including: at least one room lockdown component provided in each of a plurality of the rooms, the room lockdown components comprising door-securing devices that are external of the doors and, in a deployed condition of the room lockdown components, are manually positioned inside said rooms to oppose inward movement of the doors and thereby block or secure the doors, the room lockdown components further characterized by a non-deployed condition in which the door-securing devices are positioned at storage locations inside the rooms, and wherein further each room lockdown component is operative to automatically signal initiation of a lockdown event when its door-securing device has been moved from its storage location; and at least one communication device operative to receive the signaled initiation of a lockdown event when any one or more of the door-securing devices have been moved fr

Abstract: A building lockdown system for a building with multiple rooms with doors providing access to the rooms, the system including smart light fixtures positioned inside and outside at least some of the rooms, at least some of the smart light fixtures configured to be selectively illuminated in each of a plurality of colors, and room lockdown components provided in the plurality of rooms, the room lockdown components adapted to block or secure the doors of the rooms against opening in a deployed condition of the lockdown components. The smart light fixtures and the room lockdown components are equipped with BLE sensors defining a BLE mesh network. The room lockdown components are adapted to communicate, via the BLE mesh network, whether they are in the deployed condition thereof, and are further adapted to provide audio and/or visual signals.

Abstract: A building lockdown system for a building with multiple rooms with doors providing access to the rooms, the system including smart light fixtures positioned inside and outside at least some of the rooms, at least some of the smart light fixtures configured to be selectively illuminated in each of a plurality of colors, and room lockdown components provided in the plurality of rooms, the room lockdown components adapted to block or secure the doors of the rooms against opening in a deployed condition of the lockdown components. The smart light fixtures and the room lockdown components are equipped with BLE sensors defining a BLE mesh network. The room lockdown components are adapted to communicate, via the BLE mesh network, whether they are in the deployed condition thereof, and are further adapted to provide audio and/or visual signals.

Abstract: Shoulder dystocia occurs most frequently during the birth of large infants, where the shoulders remain impacted, and lateral traction on the fetal neck with evulsion of the brachial plexus may cause brachial plexus injury. The idea is to prevent excessive lateral bending of the infant's head, its ensuing stress, and damage to the brachial nerve bundle. This invention consists of a special head brace, which limits the lateral movement of the baby's head with respect to the clavicle, and can be quickly mounted when required by the specific medical situation. Its design in two sections provides a snug fit, regardless of the infant's head size, and permits its installation in the little time available to complete the birth process.

Abstract: The invention consists of a bent flat member, which, properly inserted in the vagina, may be used to help a patient affected with rectocele (hernia) eliminate fecal matter, which otherwise may remain in the pocket formed by the hernia, and cause medical problems. The instrument is washable and may be indefinitely re-used by the patient.

Abstract: The invention consists of an umbrella-like section used in an inverted vertical position as a funnel to receive rain water. The center of this foldable funnel is open and allows the water to flow out. The funnel is positioned over a vertical tubular housing, which has the dual purpose of channeling the water to a cistern, and to serve as the housing for the folded funnel. A mechanism consisting of a system of pulleys, and optionally electric motor, extracts and retracts the funnel as required by either human intervention, or automated logical decisions of a control device, or a combination of both, according to the degree of sophistication desired.

Abstract: A method and apparatus are disclosed for closed loop testing of first and second modulators and demodulators from the modulated signal side of the first modulator and first demodulator. During ordinary communication, the first modulator and second demodulator are connected in series and the first demodulator and the second modulator are connected in series. In response to each test initiate signal, a loop is established between the second modulator and the second demodulator on their modulated signal side. Upon reception of some test initiate signals, a loop is established between the first modulator and first demodulator on their demodulated side and they are disconnected from the second demodulator and second modulator.

Abstract: A data communication system is described in which dial access control signals such as RING, DATA SET READY, DATA TERMINAL READY, CARRIER DETECT, and OUT OF SERVICE are transmitted between a central processing unit (CPU) and remote terminals in the form of frequency-modulated signals. A special frequency signal is transmitted from a remote terminal whenever a RING or DATA SET READY control signal is present and a CARRIER DETECT signal is not. Preferably, this special frequency is midway between the center frequency used for data communication and the frequency of either the MARK or the SPACE signal. Upon reception, this special frequency signal is processed in a particular fashion to generate signals comparable to the RING or DATA SET READY signals of the prior art. DATA TERMINAL READY and CARRIER DETECT control signals are transmitted as carrier signals and the OUT OF SERVICE signal is transmitted as a center frequency signal.