Cen-Tec
Charlie,
You are partially right. Cen-Tec can put together systems for other companies. These would be the smaller companies. Cen-Tec can be considered the "middle man" so to speak. There was a reason I asked you about numbers for Air-Way. I knew that Air-Way did not produce big numbers like Panasonic, Sears, Royal, etc. Therefore, it would be hard to go to the source to purchase a power nozzle unit designed for a small company. They would want you to purchase in huge quantities. Cen-Tec purchases these power nozzles and puts the Air-Way "Rugmaster" sticker on it and sends it off to Air-Way. They do not make the power nozzles for Kenmore, Panasonic, Royal,Euro Pro, Fuller Brush, Fantom, Thermax, etc.
You are right about the Kenmore power nozzles that previously had the beater bar/replaceable brush strips. My thinking is they thought that it was cheaper and more profitable to install a wooden brushroll on the line instead of the more expensive brushroll with beater bar/replaceable brushstrips. For the customer, it would be more expensive to replace the brushroll instead of replacing the brushstrips. In turn, again it would be more profitable for Sears.
There is another possibility though. Many vacuum users do not want to take the time to remove the power nozzle and put a floor brush on when cleaning floors. Using a brush-only agitator would decrease the risk of damage for some users.
You are right about the Wessell-Werk mini turbo brush. It is not that great. I think the Rug Rat is great. It is very sturdy/durable. I have the original Rug Rat and the same thing under Kirby(from the Heritage). I do not care for the later Zip Brush, IMHO.
peteK,
The Eureka you picked up is more like 20+ yrs. old. The Eureka power nozzle, that you have, is actually a very good nozzle. It does a very good job with the beater bar. The power nozzle was not too noisey compared to the Kenmore power nozzles. These power nozzles were used by others like Rainbow, Compact and Fair Fax. You are right about the edge cleaning, because there really was no edge cleaning. There should be a small indent on one side(opposite the belt)of the metal bottom plate. That is the "edge cleaning".