Abstract: This invention relates to a machine for mixing and blending liquid chemicals with a gas or air, and more particularly for providing an air and chemical mixture having the consistency of a foam substance for coating the surface of a fabric or other substrate material. The invention provides a mixing apparatus having a plurality of peristaltic type pumps that operate at a system pressure that will permit pulsed mixing of air with chemical substances without using high system pressures to achieve a predetermined mix ratio for a chemical compound. The addition of a premix unit helps to achieve the mixing by providing a two stage mixing process when used along with a blending foamer. A unique air injector of the premix unit aids in the initial injection of air into the chemical substance. The blending foamer has an improved rotor configuration and mounting to also achieve enhanced mixing. The mixing apparatus provides a foam substance of a chemical compound for coating a substrate material in a coating machine.

Abstract: A system and method is disclosed for instructing personnel in the operation and servicing of machinery at a plant from a geographically remote service center employing trained personnel. The system and method includes monitoring operating machinery at the plant with a video camera and transmitting a video signal to a base unit associated with the plant having a high resolution monitor. Audio communication is also provided between plant personnel and the personnel at the service center wherein audio signals are received and transmitted through the base unit. The video and audio signals are processed together at the base unit for synchronous transmission over a telecommunication system to the remote service center. The machinery is monitored in the plant with a cordless portable video camera by moving the portable video camera to a desired area of the operating machinery which needs monitoring.

Abstract: The innerliner ply of a tire has been modified in thickness to provide a profiled innerliner ply. A permeability relationship is established for the material of the innerliner that allows the average thickness of the innerliner ply to be adjusted based on its temperature. The maximum and minimum thickness are located in relation to the maximum and minimum internal temperature locations within the tire. A gradual change in thickness is used between the maximum and minimum thickness locations. An object of the invention is to limit the air flow through the tire in locations which have a high internal temperature. This limited air flow will improve the deterioration of rubber products in the tire and maintain an allowable inflation pressure air loss rate.