发明名称 |
FORCE APPLYING APPARATUS AND METHOD |
摘要 |
A force applying apparatus includes a housing that supports a drive motor. A first extendable member is telescopically received in the housing and moves between a retracted position within the housing and an extended position axially of the housing. A second extendable member is telescopically received in the first extendable member and moves between a contracted position within the first extendable member and an expanded position axially of the first extendable member. The motor drives a ring gear that advances the first extendable member, and a ball nut is mounted in the end of the first extendable member to advance the second extendable member. A spline helps retain the first and second extendable members against rotation but a detent assembly selectively releases the first extendable member for rotation. The apparatus may be used to lift and level a recreational vehicle. A method implemented by this structure is also claimed. |
申请公布号 |
WO2005003014(A2) |
申请公布日期 |
2005.01.13 |
申请号 |
WO2004US20501 |
申请日期 |
2004.06.24 |
申请人 |
RV SAFETY PRODUCTS, LLC;RINCOE, RICHARD, G. |
发明人 |
RINCOE, RICHARD, G. |
分类号 |
B60S9/02;B60S9/08;B66F |
主分类号 |
B60S9/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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