Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 7637739 | Heating method and apparatus Hot products of combustion are provided beside an outer surface of a load to be heated, and are given a non-uniform temperature profile in a control direction extending across the outer surface of the load. The non-uniform temperature profile of the hot products of ... | 12/29/2009 |
| 4531910 | Down draft kiln A gas fired kiln wherein symmetrically disposed and vertically oriented high velocity natural draft burners burn fuel within and immediately adjacent the side walls of the kiln's chamber, the flames extending vertically adjacent the side walls and the hot... | 07/30/1985 |
| 4515561 | Fiber treatment oven A fiber treatment oven is disclosed in which hot gas is flowed parallel to and between fiber pathways within the oven to reduce deflection and breakage of fibers and to reduce end-to-end temperature variations in the oven. Hot gas is emitted centrally of ... | 05/07/1985 |
| 4215982 | Continuous ring furnaces for baking and rebaking carbon articles The invention provides improvements in continuous ring furnaces which have sequentially arranged and communicating chambers and which are used for baking and rebaking carbon articles, wherein a movable bridge member is employed to connect a common smoke c... | 08/05/1980 |
| 4212634 | Auxiliary heating system for a bulk tobacco barn The present invention entails a bulk tobacco barn having a generally enclosed drying area and a forced air heating system associated directly with the barn for generating a system of air and circulating the air through tobacco supported within the drying ... | 07/15/1980 |
| 4089697 | Manufacture of Portland cement A method of calcining solid materials on a downdraught travelling grate prior to treatment at a higher temperature on a continuously operating kiln, wherein heat for said calcining is obtained by drawings hot gaseous effluent from the kiln into the travel... | 05/16/1978 |
