Abstract: An oil burning lamp has a fuel reservoir, a fuel expansion chamber releasably and sealingly coupled to the fuel reservoir, a burner assembly coupled to the fuel expansion chamber, and an adjustable wick. If the fuel in the fuel reservoir undergoes thermal expansion, it flows into the fuel expansion chamber, thereby preventing fuel leaks and spills. In the preferred embodiment, the burner assembly is permanently coupled to the fuel expansion chamber, thereby preventing users from refueling the lamp while the lamp is burning. The fuel expansion chamber also serves as an overflow fuel chamber, so that if the lamp is inadvertently knocked over, the fuel will flow into the fuel expansion chamber, not out of the lamp.

Abstract: A dual mode trailer hitch that operates in both a “vehicle-tow” mode and a “manual tow” mode. In the vehicle-tow mode of operation, the trailer hitch is configured such that a trailer can be pivotally coupled to and towed by a towing vehicle, such as a tractor. In the manual-tow mode of operation, the trailer hitch is configured to not articulate, so that the trailer can be towed manually by a person. The trailer hitch includes bar pivot attachment member, a connecting link, a handle attachment fitting, at least one side plate, a tow bracket, and a vehicle coupling pin 23. In the preferred embodiment, the side plates are coupled on both sides of the tow bracket. The combined side plates and tow bracket are pivotally coupled to both the bar pivot attachment member and one end of the connecting link by a first pivot pin. The handle attachment fitting is pivotally coupled to the other end of connecting link by a second pivot pin.

Abstract: A dual mode trailer hitch that operates in both a “vehicle-tow” mode and a “manual tow” mode. In the vehicle-tow mode of operation, the trailer hitch is configured such that a trailer can be pivotally coupled to and towed by a towing vehicle, such as a tractor. In the manual-tow mode of operation, the trailer hitch is configured to not articulate, so that the trailer can be towed manually by a person. The trailer hitch includes bar pivot attachment member, a connecting link, a handle attachment fitting, at least one side plate, a tow bracket, and a vehicle coupling pin 23. In the preferred embodiment, the side plates are coupled on both sides of the tow bracket. The combined side plates and tow bracket are pivotally coupled to both the bar pivot attachment member and one end of the connecting link by a first pivot pin. The handle attachment fitting is pivotally coupled to the other end of connecting link by a second pivot pin.

Abstract: An oil burning lamp has a fuel reservoir, a fuel expansion chamber releasably and sealingly coupled to the fuel reservoir, a burner assembly coupled to the fuel expansion chamber, and an adjustable wick. If the fuel in the fuel reservoir undergoes thermal expansion, it flows into the fuel expansion chamber, thereby preventing fuel leaks and spills. In the preferred embodiment, the burner assembly is permanently coupled to the fuel expansion chamber, thereby preventing users from refueling the lamp while the lamp is burning. The fuel expansion chamber also serves as an overflow fuel chamber, so that if the lamp is inadvertently knocked over, the fuel will flow into the fuel expansion chamber, not out of the lamp.