IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0028483
(2001-12-28)
|
우선권정보 |
TW-90200712 U (2001-01-12) |
발명자
/ 주소 |
- Cheng, Tung-Chao
- Yu, Yung Tay
|
출원인 / 주소 |
- Chaw Khong Technology Co., Ltd.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
4 |
초록
▼
A power switching device mounted on an electric scooter is provided. The device comprises a coupling mechanism including a seat and an n-shaped connection member, a switching mechanism including a bent lever, an elastic mechanism, and a drive mechanism. The lever is operable to quickly switch the sw
A power switching device mounted on an electric scooter is provided. The device comprises a coupling mechanism including a seat and an n-shaped connection member, a switching mechanism including a bent lever, an elastic mechanism, and a drive mechanism. The lever is operable to quickly switch the switching mechanism in one of an engaged locked state when the scooter is manually operated, a disengaged limited state, and a disengaged locked state both when the scooter is battery-operated.
대표청구항
▼
A power switching device mounted on an electric scooter is provided. The device comprises a coupling mechanism including a seat and an n-shaped connection member, a switching mechanism including a bent lever, an elastic mechanism, and a drive mechanism. The lever is operable to quickly switch the sw
A power switching device mounted on an electric scooter is provided. The device comprises a coupling mechanism including a seat and an n-shaped connection member, a switching mechanism including a bent lever, an elastic mechanism, and a drive mechanism. The lever is operable to quickly switch the switching mechanism in one of an engaged locked state when the scooter is manually operated, a disengaged limited state, and a disengaged locked state both when the scooter is battery-operated. rill string section for forming the first and second passages. 11. The method of claim 1, wherein at least one of the first and second passages is at least about 30 inches long. 12. The method of claim 1, wherein at least one of the first and second passages is at least about 95 inches long. 13. The method of claim 1, wherein the first passage, second passage, and a portion of the connecting passage together form an internal passage that is at least about 125 inches long. 14. The method of claim 1, wherein the drill string section has a second internal passage formed therein. 15. The method of claim 1, further comprising a step, before step (e), of inserting an alignment sleeve into the first portion and the second portion to facilitate permanent joining as completed in step (e). 16. The method of claim 1, wherein the drill string section first and second ends each comprises a threaded region such that the drill string sections can be coupled to other drill string sections. 17. The method of claim 1, further comprising a step of forming a plurality of pockets in the drill string section, each pocket extending from the outer surface to one of the first passage and the second passage. 18. The method of claim 17, further comprising steps of disposing a plurality of electrical devices in the plurality of pockets and connecting the electrical devices with electrical wiring disposed within the first and second passages. 19. The method of claim 18, wherein the plurality of electrical devices are selected from the group consisting of sensors, microprocessors, and power supplies. 20. A method of manufacturing a drill string section including an internal passage extending along a substantial portion of its length, the method comprising the steps of: (a) providing first and second drill pipes, each pipe comprising a first end, an opposing second end, a pipe wall, and a passage extending generally axially through the pipe wall from the first end to a position spaced apart from the second end; (b) joining the first and second drill pipes at their respective first ends so that the passages are misaligned and so as to form the drill string section; and (c) forming a connecting passage from an outer surface of the drill string section that intersects the two passages, whereby the connected two passages define the drill string section internal passage. 21. The method of claim 20, wherein the two passages are radially misaligned ter the joining step (b). 22. The method of claim 20, wherein the two passages are circumferentially misaligned after the joining step (b). 23. The method of claim 20, wherein at least one of the two passages is at least about 30 inches long. 24. The method of claim 20, wherein at least one of the two passages is at least about 95 inches long. 25. The method of claim 20, wherein the two passages together form an internal passage that is at least about 125 inches long. 26. The method of claim 20, further comprising a step of forming a plurality of pockets in the drill string section, each pocket extending from the outer surface to one of the two passages. 27. The method of claim 26, further comprising the steps of disposing a plurality of electrical devices in the plurality of pockets and connecting the electrical devices with electrical wiring disposed within the two passages. 28. The method of claim 27, wherein the plurality of electrical devices are selected from the group consisting of sensors, microprocessors, and power supplies. 29. A drill string section including an internal passage extending along a substantial portion of its length, the drill string section comprising: a first end; a second end; a wall; an intermediate weld joint; a first blind and generally axially extending passage extending through the wall from the weld joint toward the first end; a second blind and generally axially extending passage extending through the wall from the weld joint toward the second end, the second passage bei
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