Invention Application
- Patent Title: COLLAPSIBLE SAFE LADDER
- Patent Title (中): 可折叠安全梯
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Application No.: PCT/US2011/050882Application Date: 2011-09-08
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Publication No.: WO2012033948A1Publication Date: 2012-03-15
- Inventor: GREEN, Jeffrey, A. , VESTAL, Floyd, Lavern
- Applicant: LOCK N CLIMB, LLC , GREEN, Jeffrey, A. , VESTAL, Floyd, Lavern
- Applicant Address: 24206 North 3962 Road Bartlesville, OK 74006 US
- Assignee: LOCK N CLIMB, LLC,GREEN, Jeffrey, A.,VESTAL, Floyd, Lavern
- Current Assignee: LOCK N CLIMB, LLC,GREEN, Jeffrey, A.,VESTAL, Floyd, Lavern
- Current Assignee Address: 24206 North 3962 Road Bartlesville, OK 74006 US
- Agency: TOMSA, Michael, S.
- Priority: US12/877,310 20100908; US13/228,054 20110908
- Main IPC: E06C7/18
- IPC: E06C7/18
Abstract:
A ladder system is disclosed which allows for stabilizing a ladder on multiple surfaces without the need for a second person or a great deal of setup time. The collapsible ladder system includes a larger ladder section and a smaller ladder strut section which are pivotally connected at a point which is at or below the midpoint of the larger ladder section. The larger ladder section and smaller ladder strut section are connected by a rigid adjustable linkage, or spreader, at a point that is below the pivotable connection. The ladder further includes a means for stability on a variety of surfaces. At the ground contact point, the point where the ladder side rail ends and the ground meet, there are adjustable gripping feet, which can be independently or in combination vertically or angularly adjusted for maximum stability.
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