Abstract: Disclosed is an elevator system, including a hoistway; an elevator car in the hoistway; sensors in the hoistway operationally coupled to the elevator car and configured to capture sensor data indicative of a person being in the hoistway, and a processor configured to determine from the sensor data that the person is in the hoistway; and wherein the elevator car is configured to reduce speed or stop when the processor determines the person is in the hoistway.

Abstract: An elevator system includes a hoistway, an elevator car configured to travel in the hoistway, and a pit located at a bottom of the hoistway. A safety chain is configured to enable or disable motion of the elevator car, and a sensor assembly is configured to initiate opening the safety chain to disable motion of the elevator car upon detection of a person in a detection region of the sensor assembly in the hoistway. A test device is configured to test operation of the sensor assembly to detect malfunctioning and/or tampering of operation of the sensor assembly.

Abstract: A safety net system is provided for an elevator system that includes an elevator pit. The safety net system includes a sensor and a processor. The sensor is arranged in a plane along a bottom of the elevator pit and is configured to perform sensing to sense an object disposed along the plane and to generate data corresponding to results of the sensing. The processor is operably coupled to the sensor and is configured to analyze the data and to determine whether the data is indicative of a person in the elevator pit based on analysis results.

Abstract: A detachable handle socket ratchet wrench system for permitting a user to change handles to suit the needs of the user. The detachable handle socket ratchet wrench system includes a ratchet head with a tubular sleeve outwardly extending therefrom defining a receptacle. A plurality of elongate handles are provided each having an insertion portion adjacent a distal end of the respective handle. The insertion portion of each of the handles is insertable into the receptacle of the sleeve. Each of the handle has a length defined between the proximal and distal ends of the respective handle. The length of a first of the handles is greater than the length of a second of the handles and at least two times greater than the length of a third of the handles. The length of the third handle is greater than about one-half the length of the second handle and less than about four-fifths the length of the second handle.