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:
Jul. 30, 2024
Filed:
Oct. 11, 2023
Applicant:
Textron Aviation Inc., Wichita, KS (US);
Inventors:
Edward Francis Funke, Cheney, KS (US);
Rebecca Rae Groninga, Maize, KS (US);
Allan Dale Schrag, Wichita, KS (US);
Assignee:
Textron Innovations Inc., Providence, RI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21S 43/14 (2018.01); B64D 9/00 (2006.01); F21W 111/027 (2006.01);
U.S. Cl.
CPC ...
F21S 43/14 (2018.01); B64D 9/00 (2013.01); B64D 2203/00 (2013.01); F21W 2111/027 (2013.01);
Abstract
An entry step lighting system for a deployable aircraft stairway. The system includes steps that having integrated light sources that direct and provide illumination to the steps. Some light sources illuminate strip lenses which indicate proximity to the step edges. Light emitted by a second group of light sources is directed into an angled face established on a riser wall between each step. The light bounces off of each angled face to illuminate the step below.