Abstract: A method of clearing debris from an air valve of an air driven tool including the steps of contacting a portion of a first valve with a portion of a second valve; sealing the first valve to the second valve; and opening the first valve prior to the sealing step.

Abstract: An air driven tool for use in a machining center, the air driven tool including an adjustable speed regulator and a turbine. The turbine is driven by pressurized air directed thereto. The turbine is rotatable about an axis. A flow of the air is regulated by the adjustable speed regulator. The adjustable speed regulator includes a biasing member, an inclined annular surface, a regulator plate and a plurality of moveable bearings. The inclined annular surface has an angle relative to the axis. The plurality of movable bearings are positioned between the inclined annular surface and the regulator plate. The biasing member biases the inclined annular surface and/or the regulator plate toward each other.

Abstract: A method of clearing debris from an air valve of an air driven tool including the steps of contacting a portion of a first valve with a portion of a second valve; sealing the first valve to the second valve; and opening the first valve prior to the sealing step.

Abstract: An air driven tool for use in a machining center, the air driven tool including an adjustable speed regulator and a turbine. The turbine is driven by pressurized air directed thereto. The turbine is rotatable about an axis. A flow of the air is regulated by the adjustable speed regulator. The adjustable speed regulator includes a biasing member, an inclined annular surface, a regulator plate and a plurality of moveable bearings. The inclined annular surface has an angle relative to the axis. The plurality of movable bearings are positioned between the inclined annular surface and the regulator plate. The biasing member biases the inclined annular surface and/or the regulator plate toward each other.

Abstract: A machining center including a machining head, a tool changer, an air driven tool and an air valve system. The air driven tool is connectable to the machine head by action of the tool changer. The air valve system has a first portion associated with the machining head and a second portion associated with the air driven tool. The first portion and the second portion include a connection therebetween having an airflow across the connection before the connection seals.

Abstract: A data display, preferably having screens or windows, is built from data in a data base according to a hierarchy of display knowledge. Therefore, the data values themselves are separate from the knowledge or rules that specify how the data values are displayed to a user. In particular, the display knowledge is arranged in a hierarchy so that an individual item of display knowledge may be applicable to a wide range of data values representing the attributes of a number of different objects. In many cases, the range of data values or the attributes which the data values represent can be changed without any need to change the display knowledge. In other cases, only minor changes to the display knowledge are needed to properly display values for new or different data. These minor changes, for example, need only be made by changing the lowest level in the hierarchy of the display knowledge or associating items of display knowledge in the lowest level with different display knowledge in the higher levels.