Abstract: A Far UV-C light apparatus has a Far UV-C lamp located within a housing emitting a Far UV-C light having a wavelength of 222±1 nm for destroying pathogens. A quarter wave generator supplies electric energy to the Far UV-C lamp. A handle connected to the housing allows the Far UV-C device to be hand held and moved to a selected location.

Abstract: A Far UV-C light device has a Far UV-C lamp located within a housing emitting a Far UV-C light having a wavelength of 222+/?1 nm for destroying pathogens. A handle connected with a body to a housing allows the Far UV-C device to be hand held and moved to a selected location. The handle is attached to a battery that provides electric energy that excites the Far UV-C lamp to emit Far UV-C light.

Abstract: A braking mechanism for a hand truck or dolly that, when installed on the hand truck, slows the movement of the hand truck when the hand truck is tilted rearwardly. The more the hand truck is tilted rearwardly, the greater the braking force applied by the braking mechanism against the wheels.

Abstract: A wrench has a head with an inside cylindrical wall surrounding a body with ramps. Cylindrical rollers located between the ramps and the cylindrical wall of the head are moved into wedging positions relative to the ramps and the inside cylindrical wall with permanent magnets located in a cage assembly anchored on the body.

Abstract: A Far UV-C light apparatus has a Far UV-C lamp located within a housing emitting a Far UV-C light having a wavelength of 222±1 nm for destroying pathogens. A quarter wave generator supplies electric energy to the Far UV-C lamp. A handle connected to the housing allows the Far UV-C device to be hand held and moved to a selected location.

Abstract: A socket wrench for turning sockets has a handle joined to a head having an inside wall accommodating a body including a socket holder. A permanent magnet attached to the socket holder holds a socket on the socket holder. The body has a plurality of ramps facing the inside wall of the head. Rollers engage the ramps and inside wall. A member mounted on the body engages the rollers to selectively shift the rollers relative to opposite end sections of the ramps. First and second permanent magnets on the body and member maintain the member in selected shifted positions to retain the rollers adjacent the end sections of the ramps.

Abstract: A socket wrench for turning sockets has a handle joined to a head having an inside wall accommodating a body including a socket holder. A permanent magnet attached to the socket holder holds a socket on the socket holder. The body has a plurality of ramps facing the inside wall of the head. Rollers engage the ramps and inside wall. A member mounted on the body engages the rollers to selectively shift the rollers relative to opposite end sections of the ramps. First and second permanent magnets on the body and member maintain the member in selected shifted positions to retain the rollers adjacent the end sections of the ramps.

Abstract: A socket wrench for turning sockets has a handle joined to a head having an inside wall accommodating a body including a socket holder. A permanent magnet attached to the socket holder holds a socket on the socket holder. The body has a plurality of ramps facing the inside wall of the head. Rollers engage the ramps and inside wall. A member mounted on the body engages the rollers to selectively shift the rollers relative to opposite end sections of the ramps. First and second permanent magnets on the body and member maintain the member in selected shifted positions to retain the rollers adjacent the end sections of the ramps.

Abstract: A wrench has a head with an inside cylindrical wall surrounding a body with ramps. Cylindrical rollers located between the ramps and the cylindrical wall of the head are moved into wedging positions relative to the ramps and the inside cylindrical wall with permanent magnets located in a cage assembly anchored on the body.

Abstract: A socket wrench for turning sockets has a handle joined to a head having an inside wall accommodating a body including a socket holder. A permanent magnet attached to the socket holder holds a socket on the socket holder. The body has a plurality of ramps facing the inside wall of the head. Rollers engage the ramps and inside wall. A member mounted on the body engages the rollers to selectively shift the rollers relative to opposite end sections of the ramps. First and second permanent magnets on the body and member maintain the member in selected shifted positions to retain the rollers adjacent the end sections of the ramps.

Abstract: A string trimmer equipped with a knife and deflector apparatus mounted on the shroud directs cut debris laterally away from a workperson operating the string trimmer. A knife cutting edge located below the shroud cuts vegetation moved by the revolving string into cut debris. An upwardly extended radial deflector mounted on the shroud directs the cut debris laterally away from the shroud and workperson.