Invention Grant
- Patent Title: Retractable column and method of forming
- Patent Title (中): 伸缩柱和成型方法
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Application No.: US14275386Application Date: 2014-05-12
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Publication No.: US09546499B2Publication Date: 2017-01-17
- Inventor: Steven A. Olsen
- Applicant: Tower Solutions, LLC
- Applicant Address: US MN Minnetonka
- Assignee: Tower Solutions, LLC
- Current Assignee: Tower Solutions, LLC
- Current Assignee Address: US MN Minnetonka
- Agency: Moore & Hansen, PLLC
- Agent Conrad A. Hansen
- Main IPC: E04H12/18
- IPC: E04H12/18 ; E04H12/34 ; B66C23/32 ; B66F3/06 ; E04G1/22 ; E04G11/48 ; E04H12/00

Abstract:
The present invention is an improved apparatus and method for forming a retractable tower or column. The present invention includes pointed hooks wherein the hooks are attached to each section of a section chain, one in a horizontal direction and one in an off-set manner. The section chains are placed on a take up mechanism in an operable position and then raised utilizing a motor. As the section chains are raised, they are guided by a guide tower, rollers, shims, and gear racks into a position whereby hooks from adjacent sections of the section chains form coupled engagements. The coupled engagement of the hooks of the sections of each adjacent section chains thereby form the column.
Public/Granted literature
- US20140237911A1 RETRACTABLE COLUMN AND METHOD OF FORMING Public/Granted day:2014-08-28
Information query