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.
Patent No.:
Date of Patent:
Mar. 19, 2019
Filed:
Feb. 09, 2017
Applicant:
Core Distribution, Inc., Minneapolis, MN (US);
Inventors:
Mitchell I. Kieffer, Minneapolis, MN (US);
Nathan L. Schlueter, Bloomington, MN (US);
Allen A. Caldwell, Savage, MN (US);
Assignee:
Core Distribution, Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E06C 1/32 (2006.01); E06C 1/12 (2006.01); E06C 7/42 (2006.01); E06C 7/08 (2006.01);
U.S. Cl.
CPC ...
E06C 1/32 (2013.01); E06C 1/125 (2013.01); E06C 7/42 (2013.01); E06C 7/082 (2013.01);
Abstract
A foldable ladder has a first ladder portion and a second ladder portion hingedly attached to the first ladder portion by a pair of hinge mechanisms. Each hinge mechanism adapted to lock the first and second ladder portions such that the first ladder portion and the second ladder portion form an angle therebetween. The hinge mechanism has a locking pin to lock the first and second ladder portions at an angular position. Each rung is connected to a column by a connector assembly having first and second release buttons.