Abstract: A wireless hoist system including a first hoist device having a first motor and a first wireless transceiver and a second hoist device having a second motor and a second wireless transceiver. The wireless hoist system includes a controller in wireless communication with the first wireless transceiver and the second wireless. The controller is configured to receive a user input and determine a first operation parameter and a second operation parameter based on the user input. The controller is also configured to provide, wirelessly, a first control signal indicative of the first operation parameter to the first hoist device and provide, wirelessly, a second control signal indicative of the second operation parameter to the second hoist device. The first hoist device operates based on the first control signal and the second hoist device operates based on the second control signal.

Abstract: A core drill assembly includes a core drill and a stand upon which the core drill is mounted. The stand includes a base supportable upon a mounting surface, a mast defining a longitudinal axis and extending upward from the base, a carriage moveably coupled to the mast and configured to support the core drill thereon, and at least one leg pivotably coupled to the base between a deployed position, in which the leg extends away from the base, and a stowed position, in which the leg is at least partially recessed within the base.

Abstract: A wireless hoist system including a first hoist device having a first motor and a first wireless transceiver and a second hoist device having a second motor and a second wireless transceiver. The wireless hoist system includes a controller in wireless communication with the first wireless transceiver and the second wireless. The controller is configured to receive a user input and determine a first operation parameter and a second operation parameter based on the user input. The controller is also configured to provide, wirelessly, a first control signal indicative of the first operation parameter to the first hoist device and provide, wirelessly, a second control signal indicative of the second operation parameter to the second hoist device. The first hoist device operates based on the first control signal and the second hoist device operates based on the second control signal.

Abstract: A bicycle rear suspension mechanism imparts a forward movement inducing moment about the axis of the rear wheel during the operation of the suspension mechanism. A parabolic swing arm is mounted such that the axis of rotation of the rear wheel is positioned proximate to the vertex, and preferably in alignment with the central axis, of the parabolic shape. A flexor element is formed into the perimeter of the parabolic swing arm at a location below the central axis of the parabolic shape and below and forwardly of the rear wheel axle. A shock absorber can be connected to the upper rocker arm to dampen the operation of the suspension mechanism. The release of stored energy in the flexor element directs a resultant force offset by a moment arm from the axis of rotation of the rear wheel to contribute to the forward momentum of the bicycle.