05769485 is referenced by 9 patents and cites 11 patents.

An improved lift mechanism for raising and lowering the tops of pop-up tent campers and similar vehicles. The mechanism of the present invention is used to simultaneously raise or lower a pair of telescoping support posts that connect the extendable top to the body, and includes a pair of guide housings that connect to the telescoping posts. A pair of substantially incompressible flexible springs is slidably disposed within the guide housings, and a drive cable extends between the guide housings and connects the flexible springs so that movement of one of the springs produces a simultaneous movement of the other spring. A block housing having an internal pulley is attached to each end of the guide housings, so that a single drive cable can be used to activate both of the flexible springs at once.

Title
Top lift system for pop-up campers
Application Number
8/692058
Publication Number
5769485
Application Date
August 2, 1996
Publication Date
June 23, 1998
Inventor
Larry W Jones
Ligonier
IN, US
Levi E Schmucker
Syracuse
IN, US
Wayne W Miller
Goshen
IN, US
Wilbur L Bontrager
Middlebury
IN, US
Agent
Baker & Daniels
Assignee
Jayco
IN, US
IPC
B60P 3/355
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