Inboard-Mounted Safety Latch Mechanism for Preventing a Walkway Platform Flip Door From Being Raised Without a Guardrail Installed

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20230010425A1
SERIAL NO

17369566

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In an example, a system is described. The system includes a guardrail having a post, and the post having a post dog. The system also includes a latch eye configured to be coupled to a flip door. The system also comprises a safety latch mechanism configured to be coupled to a fixed structure and including a body, a socket configured to receive the post, and a door latch rotatably coupled to the body and biased in a latched position that is configured to engage with the latch eye and thereby retain the flip door in a lowered position. Based on the post being inserted into the socket of the safety latch mechanism, the post dog engages with and rotates the door latch from the latched position to an unlatched position, thereby allowing the flip door to be raised from the lowered position to a raised position.

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Patent Owner(s)

Patent OwnerAddress
THE BOEING COMPANY100 NORTH RIVERSIDE PLAZA CHICAGO IL 60606-1596

International Classification(s)

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  • 2021 Application Filing Year
  • E05C Class
  • 240 Applications Filed
  • 127 Patents Issued To-Date
  • 52.92 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dunlap, Brennan J Snohomish, US 2 0
Russell, Don J Arlington, US 3 1

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  • 0 Citation Count
  • E05C Class
  • 0 % this patent is cited more than
  • 2 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges3316701 - 10020406080100120140160180200220240260280300320340360

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