Elevating system

Details Elevating system Elevating system

1993-05-24

1995-11-14

Chin-Shue, Alvin C.

Fire escape, ladder, or scaffold

Means maintaining platform level on angularly movable support

Swingable support

298 22D, E04G 500

Patent

active

054658080

ABSTRACT:
An elevating system elevates a payload platform between a first position and a second position, such elevating system having a stowed position, an operational position, and a fully-deployed position. The elevating system includes an extendable actuator rod pivotably mounted on a frame and a link pivotably mounted to the extendable actuator rod and pivotably mounted to the payload platform. The extendable actuator rod and the link are moved from the stowed position to the operational position by increasing the length of the extendable actuator rod from a first length to a second length. The extendable actuator rod and the link are moved from the operational position to the fully-deployed position by increasing the length of the extendable actuator rod from the second length to a third length. The extendable actuator rod and the link elevate the payload platform from the first position to the second position as the extendable actuator rod and link are moved from the operational position to the fully deployed position.

REFERENCES:
patent: 1798469 (1931-03-01), Heil
patent: 2232230 (1941-02-01), Gruber
patent: 2621814 (1952-12-01), Lisota
patent: 4162873 (1979-07-01), Smith

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