Abstract: A fluid integrating system (10) includes an integrating manifold (30) having two or more input fluid inlets (132) disposed at oblique angles relative to a center axis of the integrating manifold (30). The two or more input fluid inlets (132) intersect in the integrating manifold (30) to define an integrating chamber (112). The fluid integrating system also includes a pressure sensor (110) fluidly connected to the integrating chamber (112) that is operable to send a pressure signal indicative of the pressure of the fluid in the integrating chamber (112). A integrating controller (22) is operatively coupled to the two or more valves (60) and to the pressure sensor (110) and is operable to selectively control the flow of input fluids into the integrating chamber (112) by actuating the two or more valves (60) based on the pressure signal received from the pressure sensor (110).

Abstract: A system for fitting a bat to an athlete includes: a host control module configured to generate a graphical user interface including: an age field for input of a present age of the athlete; a height field for input of a present height of the athlete; a weight field for input of a present weight of the athlete; an association field for input of one of a league and a group with which the athlete is affiliated; a bat selection module configured to: determine a target drop based on data in the association field; determine a suggested bat length for the athlete based on data in the age, height, weight, and association fields; and determine a suggested bat weight based on the suggested bat length minus the target drop; and select one of a plurality of bats based on the suggested bat length and the suggested bat weight.

Abstract: A fluid integrating system (10) includes an integrating manifold (30) having two or more input fluid inlets (132) disposed at oblique angles relative to a center axis of the integrating manifold (30). The two or more input fluid inlets (132) intersect in the integrating manifold (30) to define an integrating chamber (112). The fluid integrating system also includes a pressure sensor (110) fluidly connected to the integrating chamber (112) that is operable to send a pressure signal indicative of the pressure of the fluid in the integrating chamber (112). A integrating controller (22) is operatively coupled to the two or more valves (60) and to the pressure sensor (110) and is operable to selectively control the flow of input fluids into the integrating chamber (112) by actuating the two or more valves (60) based on the pressure signal received from the pressure sensor (110).

Abstract: A golf club head made of a ferrous metal and having a density in the range from about 5 to about 6.8 g/cm3 and from about 7.0 to about 7.4 g/cm3, and such heads made of a cast ferrous metal having a density in the range from about 5 to about 7.4 g/cm3. The entire golf club head may be made of such ferrous metal. Or, the ferrous metal is preferably a ductile iron or gray iron. The ferrous metal may be present as an insert in the ball hitting face of the club head, and the body of the club head may be a material different from the ferrous material. Or, the body of the club head may be made of the ferrous metal and the ball hitting face of the club head may be a different material.