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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0368464 (1989-06-19) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 18 인용 특허 : 8 |
The present vehicle speed bump device allows a vehicle to roll over the device slowly with little resistance. However, the device includes a lock which operates to lock the speed bump of the device in operative position when contacted by a vehicle wheel moving at a higher speed, thereby causing an a
An improved vehicle speed bump device adapted to be inbedded in a roadway, said device comprising, (a) an actuating member extending above the roadway for contacting vehicle tires, and (b) inertia locking means connected to said actuating member and responsive to the rate of movement of said actuati
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