Abstract: Disclosed are support-activators and catalyst compositions comprising the support-activators for polymerizing olefins in which the support-activator includes clay heteroadduct, prepare from a colloidal phyllosilicate such as a colloidal smectite clay, which is chemically-modified with a heterocoagulation agent. By limiting the amount of heterocoagulation reagent relative to the colloidal smectite clay as described herein, the smectite heteroadduct support-activator is a porous and amorphous solid which can be readily isolated from the resulting slurry by a conventional filtration process, and which can activate metallocenes and related catalysts toward olefin polymerization. Related compositions and processes are disclosed.

Abstract: Pulse jet air cleaner systems components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided.

Abstract: Pulse jet air cleaner systems components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided.

Abstract: A dental diagnostic system for analyzing tooth structure, restorative materials within a tooth structure, and disease states of a tooth includes an analyzer which may be attached to a variety of dental probes, dental drills, and instruments to afford adaptability to a variety of clinical situations in providing diagnostic information on the naturally occurring tooth structure, man-made materials placed or found within the tooth structure, diseased or otherwise affected, infected or effected tooth structure, as well as tooth structure that has been eroded, worn by attrition, abraded, abfracted, fractured, crazed, broken or otherwise compromised through patient use, misuse, fatigue or longevity of use; and a method of diagnosing using the system.

Abstract: A dental diagnostic system for analyzing tooth structure, restorative materials within a tooth structure, and disease states of a tooth includes an analyzer which may be attached to a variety of dental probes, dental drills, and instruments to afford adaptability to a variety of clinical situations in providing diagnostic information on the naturally occurring tooth structure, man-made materials placed or found within the tooth structure, diseased or otherwise affected, infected or effected tooth structure, as well as tooth structure that has been eroded, worn by attrition, abraded, abfracted, fractured, crazed, broken or otherwise compromised through patient use, misuse, fatigue or longevity of use; and a method of diagnosing using the system.

Abstract: A dental diagnostic system for analyzing tooth structure, restorative materials within a tooth structure, and disease states of a tooth includes an analyzer which may be attached to a variety of dental probes, dental drills, and instruments to afford adaptability to a variety of clinical situations in providing diagnostic information on the naturally occurring tooth structure, man-made materials placed or found within the tooth structure, diseased or otherwise affected, infected or effected tooth structure, as well as tooth structure that has been eroded, worn by attrition, abraded, abfracted, fractured, crazed, broken or otherwise compromised through patient use, misuse, fatigue or longevity of use; and a method of diagnosing using the system.