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 Title: |
US6405831:
Mobile lift unit
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Daniel, III, James P.; Florence, SC
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| Assignee: |
Aluminum Ladder Company, Florence, SC
other patents from ALUMINUM LADDER COMPANY (22450) (approx. 9)
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| Published / Filed: |
2002-06-18
/ 2000-11-28
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| Application Number: |
US2000000723871
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| IPC Code: |
Advanced:
B66F 11/04;
E06C 1/39;
E06C 1/397;
E06C 5/04;
Core:
E06C 1/00;
E06C 5/00;
more...
IPC-7:
E06C 5/00;
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| ECLA Code: |
B66F11/04B; E06C1/39; E06C1/397; E06C5/04;
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| U.S. Class: |
182/127;
182/115;
182/141;
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| Field of Search: |
182/113,116,115,63.1,141,127,9,223
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| Priority Number: |
| 2000-11-28 |
US2000000723871 |
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| Abstract: |
A mobile human life unit includes an elevatable platform supported by a ladder mounted on a wheeled vehicle. A first embodiment of the mobile human lift unit utilizes a winch with a winch cable reeved over a pulley carried by a support having at least three legs which are held in fixed positions on the platform. A second embodiment of the mobile human lift unit has an overhead crane with a track which swings about a vertical pivot axis and carries a trolley with a winch.
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| Attorney, Agent or Firm: |
Schwab, Charles L.Nexsen Pruet Jacobs & Pollard, LLC ;
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| Primary / Asst. Examiners: |
Lev, Bruce A.;
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| INPADOC Legal Status: |
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| Family: |
None
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First Claim:
Show all 9 claims |
What is claimed is:
1. A lift unit for removing a human from an enclosure having a top opening, comprising:
- a wheeled vehicle having a chassis,
- a horizontally disposed platform including
- a portion having vertically open entryway and
- three support members spaced about said entryway,
- a support structure between said chassis and said platform in the form of an extension ladder having a butt section secured to said chassis and an extensible fly section supporting said platform,
- an apparatus operable to extend and contract said ladder to raise and lower said platform,
- said platform being disposed in elevated position above said chassis wherein a portion extends horizontally beyond a perimeter of said wheeled vehicle in one direction to permit said entryway to be positioned above said top opening of said enclosure,
- a lift tripod having
- an apex positioned above said open entryway,
- three legs having upper ends connected to said apex and lower ends supported, respectively, by said support members, and
- a pulley rotatably supported on said apex, and
- a winch including a lift cable reeved on said pulley and having a free end adapted for connection to a human lift harness.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
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| Description: |
Show description
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| Forward References: |
Show 14 U.S. patent(s) that reference this one
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