Did You Know...
...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7597112 | System and method for distributing liquid flow into predetermined proportions A system configured to distribute liquid flow into predetermined proportions is provided. The system includes a distributor defining a plurality of distributor outlets configured to deliver liquid from the distributor. A receptacle is positioned to receive liquid, t... | 10/06/2009 |
| 7368040 | Apparatus for and method of heating fluid and distilling fluid A method and an apparatus for heating fluid with a gas heater and distilling fluid with the pilot light of the gas heater are disclosed. The apparatus for heating fluid and distilling fluid includes a main tank for containing fluid to be heated, a heater, adapted to... | 05/06/2008 |
| 6363962 | Crash valve actuator A crash valve is located in a liquid tight dispenser pan at a gasoline service station to close a conduit conveying gasoline to a gasoline dispensing unit to prevent uncontrolled flow of gasoline in the event a vehicle crashes into the dispensing unit. Th... | 04/02/2002 |
| 5560820 | Self-cleaning fluid filtration system A self-cleaning fluid filtration system is presented and which includes a tank having a bottom wall and a side wall together forming a fluid chamber. An inlet is located in the bottom wall for receiving fluid to be filtered. A tube extends from the inlet ... | 10/01/1996 |
| 4059227 | Moisture sensing apparatus and method Method and apparatus for sensing moisture by exposing water in a container to the atmosphere, sensing changes in the volume of the exposed water due to ambient weather conditions, controlling an electrical signal related to the sensed change and controlli... | 11/22/1977 |
| 3945391 | Float controlled hydraulic leveler A hydraulic controller is disclosed which includes a housing assembly hermetically enclosing a hydraulic fluid, conduits for transporting hydraulic fluid into and out of the housing assembly, a valve control assembly for regulating the hydraulic fluid in ... | 03/23/1976 |
