I have invented a bin sweep that runs soley on vacuum. I have started the patent process and formed a limited liabilty company. With all the new osha regulations bin entry is allowed while my sweep is running. I am selling this company because I simply don't have the resources needed to get this product on the market. It can be sold anywhere in the world where there is a grain bin. I also have 2 prototypes included in the sale. This is the kind of product that will save lives and needs to be on the market now. I have run the sweep and I wanted a 20 ft reach but with the vac i was using i could only get 15ft. That means you can clean a 30ft bin on time around, ad a solid pipe and go a second time around. you do not man habdle vac hose because this sweep pvets in the center of the grain bin. I do have a wesit up and running, call me at 715-781-3861 for web address and more info. This product is worth millions! But more importantly, it saves lives. My sale price is $750,000. you get all of it and I walk away! I had to put a value in the cash flow so the numbers are cost of sweep and second number is recomended selling price.