The Distancecaddy Company, LLC

Novelis, Inc.

Leslie Calvin Hildenbrandt

James P Thome

William Joseph Gebhardt

Thomas A Saldarelli

Gary Thornton

Edeen Sarmast

Carey Fredrick Ryerson

Matthew Cathone

Scott A Wisniewski

Methods and apparatus for measuring the cleanliness of molten metal. Direct current is passed through molten metal advancing through a passage. A voltage signal is analyzed for the presence of solid generally non-metallic inclusions in the metal. A method includes sampling digital data of the voltage signal to generate data samples; updating a delayed running average of the data samples to establish a baseline for identifying sudden changes in amplitude of the data samples; determining a threshold by adding a prescribed value to the baseline; identifying a possible inclusion when a significant number of data samples exceeds the threshold; storing a maximum count as the data samples using peak detection until a prescribed number of the data samples fall below the threshold; and comparing a parameter of the possible inclusion with a lookup table to categorize the possible inclusion as either (i) an actual inclusion or (ii) noise.

Methods of and apparatus for determining particle inclusion and size in molten metal

Swimmer's starting block

The present invention provides a video-based, combined informational/training system for user activity related applications. In one embodiment, the system (2) includes a video recording assembly (10) and a measuring device (4) located at a user activity site (6) such as a tee box of a golf driving range. A video tape (60), including activity specific information on a first, pre-recorded portion thereof, is provided to the user for use in the video recording assembly (10) at the user activity site (6). The video tape (60) is cued for recording user specific information on a second portion of the video tape (60) during a practice session. The sensor (4) determines corresponding parameter information, such as estimated golf ball carry distance, for display on video tape (60). The video tape (60) and video recording assembly (10) cooperate to provide a mechanism for preventing or discouraging use of unauthorized tapes and to ensure proper usage of the system (2).

Informational/training video system

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Windsor, CO, United States of America

Leslie Calvin Hildenbrandt