IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0120568
(2002-04-11)
|
발명자
/ 주소 |
|
대리인 / 주소 |
McKee, Voorhees & Sease, P.L.C.
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
11 |
초록
▼
A natural and environmentally friendly cooling system is disclosed. The cooling system comprises an insulating enclosure, a block of ice within the insulating enclosure, a primary coil of tubing contacting the block of ice and beneath the block of ice for transferring fluid, a return coil of tubing
A natural and environmentally friendly cooling system is disclosed. The cooling system comprises an insulating enclosure, a block of ice within the insulating enclosure, a primary coil of tubing contacting the block of ice and beneath the block of ice for transferring fluid, a return coil of tubing beneath the block of ice for transferring fluid, and a grid positioned between the primary coil and the return coil.
대표청구항
▼
A natural and environmentally friendly cooling system is disclosed. The cooling system comprises an insulating enclosure, a block of ice within the insulating enclosure, a primary coil of tubing contacting the block of ice and beneath the block of ice for transferring fluid, a return coil of tubing
A natural and environmentally friendly cooling system is disclosed. The cooling system comprises an insulating enclosure, a block of ice within the insulating enclosure, a primary coil of tubing contacting the block of ice and beneath the block of ice for transferring fluid, a return coil of tubing beneath the block of ice for transferring fluid, and a grid positioned between the primary coil and the return coil. utch controller. 9. The self-propelled mower set forth in claim 8 wherein the clutch controller is part of a main controller connected to the wheel structure and to the source of electrical energy, and including a navigation system connected to the main controller and providing autonomous control of the mower. 10. A self-propelled mower having a frame supporting an engine, a source of electrical energy driven by the engine, and a driven cutting device for cutting vegetation, the mower including drive wheel structure supporting the frame, an electrical motor operably connected to the drive wheel structure and to the source of electrical energy for propelling the mower over the ground where the vegetation is present, a cutter drive connected between the engine and the cutting device and driving the cutting device directly from the engine, wherein the cutter drive includes a controllable clutch device, and a navigation and obstacle detection control operably connected to the clutch device. 11. The self-propelled mower set forth in claim 10 wherein the drive includes a shaft connected to the engine and wherein the navigation and obstacle detection control includes obstacle avoiding sensor structure, wherein the controllable clutch device is responsive to the sensing of an obstacle by the sensor structure. 12. The self-propelled mower set forth in claim 10 wherein the cutting device includes a mower blade, the navigation and obstacle detection control controlling the clutch device in response to detection of an obstacle. 13. The self-propelled mower set forth in claim 10 wherein the cutting device comprises a reel mower driven by the engine. 14. The self-propelled mower set forth in claim 10 wherein the navigation and obstacle detection control provides automatic engagement and disengagement of the cutting device. 15. The self-propelled mower set forth in claim 14 wherein the drive wheel structure includes first and second drive wheels connected to first and second electric motors, and wherein the first and second electric motors are connected to the navigation and obstacle detection control and are independently controllable to provide steering for the mower. 16. A self-propelled mower having a frame supporting an engine, a source of electrical energy driven by the engine, and a driven cutting device for cutting vegetation, the mower including drive wheel structure supporting the frame, an electrical motor operably connected to the drive wheel structure and to the source of electrical energy for propelling the mower over the ground where the vegetation is present, a cutter drive connected between the engine and the cutting device and driving the cutting device directly from the engine; a controller connected to the source of electrical energy and to the drive wheel structure and providing automatic control of the mower; and wherein the cutter drive includes a clutch device connected to the controller and selectively connecting the engine to the cutting device. 17. The self-propelled mower set forth in claim 16 further comprising a navigation system connected to the controller and providing autonomous control of the mower. 18. An autonomous mower comprising a fore-and-aft extending frame having forward and aft ends, drive wheel structure supporting the aft end of frame for movement over grass to be cut, the drive wheel structure including first and second transversely offset rear drive wheels, a forward caster wheel supporting the forward end of the frame, the rear drive wheels and forward caster wheel providing primary support of the frame, an internal combustion engine supported on the frame, a source of electrical power including a generating device driven by the engine, a drive shaft extending from the engine, a grass cutting device, a controllable drive coupler connecting the cutting device to the drive shaft for drive by the engine, electric motor structure connected to the drive wheel structure and to the source of electrica
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