Lift

Details Lift Lift

2007-06-05

2007-06-05

Lillis, Eileen D. (Department: 3654)

Elevator, industrial lift truck, or stationary lift for vehicle

Stairway assist for individual or minor barrier lift for...

C187S269000, C187S272000, C182S069600, C182S149000, C254S00900C, C254S114000, C254S122000, C074S039000, C414S589000

Reexamination Certificate

active

10562690

ABSTRACT:
A lift between lower and upper levels of a house includes a cabin and an essentially horizontal platform which is essentially vertically movable by actuating elements arranged thereunder. The actuating elements include at least one pair of rotatably mounted arms pivotally arranged around an axis in the middle part thereof. The free ends of the first arm of one pair are pivotable around a fixed axis and respectively around an axis sliding along the platform. The free ends of the second arm are pivotable around a fixed axis connected to the platform and respectively around a sliding axis. An actuating unit interacts with at least one of the arms such that the pivot axis of the second arm for the platform, the middle pivot axis of the arms of the pair and the pivot axis of the first arm are never aligned.

REFERENCES:
patent: 5542806 (1996-08-01), Kang
patent: 42 34 490 (1993-04-01), None

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