IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0972718
(2001-10-05)
|
발명자
/ 주소 |
- Fireman, Andrew F.
- Eckert, Thomas B.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
6 |
초록
▼
A snow sled comprising a unitary body comprising a top portion having a seat portion, a bottom portion engageable with the snow, a rear portion, a front portion, and first and second side portions. The bottom portion and the top portion extend along a longitudinal axis substantially from the rear po
A snow sled comprising a unitary body comprising a top portion having a seat portion, a bottom portion engageable with the snow, a rear portion, a front portion, and first and second side portions. The bottom portion and the top portion extend along a longitudinal axis substantially from the rear portion to the front portion. The top portion comprises a first wall portion. The lower portion comprises a second wall portion. The first wall portion of the top portion is spaced less than substantially four inches from the second wall portion of the bottom portion along said longitudinal axis. The top portion may further comprise first and second foot rest portions. The first and second foot rest portions comprise first and second wall portions. The bottom portion may further comprises a third wall portion. Application of a downward force to the first and second foot rest portions cause the first and second wall portions of the top portion to deflect and come in contact with the third wall portion of the bottom portion to provide structural stability.
대표청구항
▼
A snow sled comprising a unitary body comprising a top portion having a seat portion, a bottom portion engageable with the snow, a rear portion, a front portion, and first and second side portions. The bottom portion and the top portion extend along a longitudinal axis substantially from the rear po
A snow sled comprising a unitary body comprising a top portion having a seat portion, a bottom portion engageable with the snow, a rear portion, a front portion, and first and second side portions. The bottom portion and the top portion extend along a longitudinal axis substantially from the rear portion to the front portion. The top portion comprises a first wall portion. The lower portion comprises a second wall portion. The first wall portion of the top portion is spaced less than substantially four inches from the second wall portion of the bottom portion along said longitudinal axis. The top portion may further comprise first and second foot rest portions. The first and second foot rest portions comprise first and second wall portions. The bottom portion may further comprises a third wall portion. Application of a downward force to the first and second foot rest portions cause the first and second wall portions of the top portion to deflect and come in contact with the third wall portion of the bottom portion to provide structural stability. age position, and wherein said second position to be caused by said spring is a locking position. 3. The control system of claim 2, wherein said locking valve is located in said first conduit branch and upstream of said level control valve. 4. The control system of claim 2, wherein said locking valve is located in said first conduit branch and downstream of said level control valve. 5. The control system of claim 2, wherein said locking valve is arranged in said second conduit branch. 6. The control system of claim 1, comprising: a first locking valve being arranged in said first conduit branch and having a locking position and a passage position, the passage position being designed to be adjustable by said spring; and a second locking valve being arranged in said second conduit branch and having a locking position and a passage position, the passage position being designed to be adjustable by said electronic control unit. 7. The control system of claim 1, further comprising: a first branch location connecting said first conduit branch and said second conduit branch, said first branch location being located close to said source of compressed air; and a common locking valve being located at said first branch location and including a spring, said common locking valve being designed and arranged to be electrically switched to reach a first position and to be switched by said spring to reach a second position, said source of compressed air being connected to said second conduit branch and said first conduit branch being locked in said first position, and said source of compressed air being connected to said first conduit branch and said second conduit branch being locked in said second position. 8. The control system of claim 1, further comprising: a branch location connecting said first conduit branch and said second conduit branch, said branch location being located next to said air-suspension bellows; wherein said locking valve is designed as a common locking valve being located at said first branch location and including a spring, said common locking valve being designed and arranged to be electrically switched to reach a first position and to be switched by said spring to reach a second position, said air-suspension bellows being connected to said second conduit branch and said first conduit branch being locked in said first position, and said air-suspension bellows being connected to said first conduit branch and said second conduit branch being locked in said second position. 9. The control system of claim 1, wherein said switching valve unit includes two switching valves being arranged in series and each including a spring, said two switching valves each being designed and arranged to be switched by said spring and to be electrically switched. 10. The control system of claim 1, wherein said switching valve unit includes a switching valve at least having three positions, namely a first lowering position, a second lifting position and a third driving position and stop position, said switching valve including a spring and being designed and arranged to be switched by said spring and to be electrically switched. 11. The control system of claim 10, wherein said switching valve and said locking valve are designed as one structural unit. 12. The control system of claim 1, wherein said switching valve unit is arranged in said second conduit branch. 13. The control system of claim 1, further comprising: a two way valve being designed and arranged to connect said first conduit branch and said second conduit branch; and a common conduit leading to said air-suspension bellows, said switching valve unit being arranged in said common conduit. 14. The control system of claim 1, wherein electronic control unit is designed and arranged to process an electric signal corresponding to a driving condition of the vehicle. 15. The control system of claim 1, wherein said level control valve and said path sensor are
※ AI-Helper는 부적절한 답변을 할 수 있습니다.