The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 20, 2018

Filed:

May. 19, 2017
Applicant:

Korea Occupational Safety and Health Agency, Ulsan, KR;

Inventors:

Ju Dong Park, Gyeongsangnam-do, KR;

Jeong Se Lee, Busan, KR;

Hyun Sub Lee, Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 1/09 (2006.01); F16L 27/12 (2006.01); F16L 25/12 (2006.01); F16L 21/00 (2006.01); F16L 3/01 (2006.01); F16L 1/06 (2006.01);
U.S. Cl.
CPC ...
F16L 1/09 (2013.01); F16L 21/005 (2013.01); F16L 25/12 (2013.01); F16L 27/12 (2013.01); F16L 1/06 (2013.01); F16L 3/01 (2013.01); F16L 21/002 (2013.01);
Abstract

A multi-stiffener for civil engineering and construction includes an outer pipe member, an inner pipe member, an inner pipe position adjusting pin and a positioning member. The outer pipe member includes an outer pipe strut plate provided at one end of the outer pipe member, a pair of slot-shaped symmetrical guide holes extending in a longitudinal direction from a position spaced apart by a predetermined distance from an open end of the outer pipe member, and a height-adjustment-purpose external thread formed around the guide holes. The inner pipe member includes an inner pipe strut plate provided at one end of the inner pipe member and a plurality of symmetrical through-holes formed at specific intervals from the inner pipe strut plate. The inner pipe position adjusting pin is configured to penetrate the guide holes of the outer pipe member and the through-holes of the inner pipe member.


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