This allows it to take away dirt, dust and animal hair wherever it may be. Some machines tip over when this is pulled toward the user. The Eureka has also been tested which prevents this from happening. Filters are still needed in the vacuum cleaner. Those on the Eureka can be brushed or washed a few times before the individual will have to buy a new one to replace it. The basic idea is still there but due to the changing fashions, the development of science and advances in technology, vacuum cleaners have evolved to be a revolutionary invention that altered forever the way people clean. Today "Puffing Billy" would be put to shame by vacuum cleaners that are ten times smaller yet many times more powerful. Multi-Selection of a Vacuum Cleaner Cover Say it basic need, or state of the art decoration inside the home, but the presence of some form seemingly of your favorite doll stationed static in one side of your room would make one feel as if there s somebody in front or just beside you. It is a vulnerable feeling that can t be denied, much more if you bump near it in your hasty wake from your room after a night s sleep. This means the person will have to dress up and check the appliance that the store has to offer. But if the individual does not have time, the store can go to the customer. Companies such as Electrolux or Kirby, has been doing this kind of business for more than 40 years. The marketing strategy used by these two companies is quite unique. In case of vacuum cleaners, being an innovative design, involves an expert dealer to guarantee its place in the competitive market. What does a professional vacuum cleaner dealer do? A vacuum cleaner dealer can specialize the selling of the items for a specific company. They study and master everything about the product to be able to answer intelligently about the vacuum cleaner they deal. Suction is done by an internal combustion device that burns gasoline. Because of its size, his invention did not click. In 1905, Walter Griffiths patented a similar device that is smaller in size. He called it the Griffith's Improved Vacuum Apparatus for Removing Dust from Carpets." Manually operated, a person need to compress a bellows-like contraption in order to suck in the dust, which will pass through a flexible pipe.