Abstract: A balancing device including a positionable member associated with a rotating member having an axis, wherein the positionable member has a substantially constant mass, and wherein the positionable member is disposed at a first position about the axis of the rotating member. The balancing device also including an actuation device disposed at a distance from the positionable member, wherein the actuation device is operable for selectively generating a force, and wherein the force is operable for moving the positionable member from the first position to a second position about the axis of the rotating member, thereby balancing the rotating member.

Abstract: A method and apparatus is disclosed for transferring electrical power to a balancer 14 without the need for a physical connection between the balancer and the power source 16 or the controller 12 and which also provides for data communication between a balancer 14 and a balancer controller 12.

Abstract: A method and apparatus for balancing tools 16 is disclosed which may uniquely characterize a needed balance for each of the individual tools 16 and which may then store the needed balance conditions so as to use the balancing data upon every use of the individual tool 16. This balance is achieved, in one embodiment, by the movement of certain balancing objects 28 from a balance containment member 22 to cavities 26 within a balance reception member 24. Should the original balance condition falter, the apparatus and methodology of this invention allow the balance conditions to be updated, dynamically, and to be stored for later use.

Abstract: A method and apparatus is disclosed for transferring electrical power to a balancer 14 without the need for a physical connection between the balancer and the power source 16 or the controller 12 and which also provides for data communication between a balancer 14 and a balancer controller 12.

Abstract: A computerized control system and method is disclosed for controlling a temperature differential balancer associated with a rotating device. The control system utilizes a microprocessor under stored program control which automatically recalibrates the phase angle difference between a vibration signal and a position signal of said rotating device. This difference is then used to define a corrected chamber to be heated or cooled in order to effect the desired device balance.

Abstract: A digital communications system includes a plurality of master stations communicating with a plurality of terminals over a single communication line which carries a plurality of duplex communication channels, each corresponding to a particular master station. A frequency translator coupling each terminal with the communication line permits the remote station to selectively communicate over any of the channels by translating the frequency of a selected channel to that of the terminal's receiver and by translating the frequency of the terminal's transmitter to that of the selected channel. Upon selection of a particular channel, the terminal's transmitter is disabled for a duration sufficient to allow its receiver to pick up a resynchronization signal periodically sent out by the master station whose channel has been selected. The receiver then enables the transmitter in synchronism with any other terminals using the same channel.

Abstract: A digital communications system includes a plurality of master stations communicating with a plurality of terminals over a single communication line which carries a plurality of duplex communication channels, each corresponding to a particular master station. A frequency translator coupling each terminal with the communication line permits the remote station to selectively communicate over any of the channels by translating the frequency of a selected channel to that of the terminal's receiver and by translating the frequency of the terminal's transmitter to that of the selected channel. Upon selection of a particular channel, the terminal's transmitter is disabled for a duration sufficient to allow its receiver to pick up a resynchronization signal periodically sent out by the master station whose channel has been selected. The receiver then enables the transmitter in synchronism with any other terminals using the same channel.