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
Stats
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N/A
Issued Date -
Jan 12, 2023
app pub date -
Jul 7, 2021
filing date -
Jul 7, 2021
priority date (Note) -
Published
status (Latency Note)
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Importance

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Non-US Coverage
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Abstract
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.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
THE BOEING COMPANY | 100 NORTH RIVERSIDE PLAZA CHICAGO IL 60606-1596 |
International Classification(s)

- 2021 Application Filing Year
- E05C Class
- 240 Applications Filed
- 127 Patents Issued To-Date
- 52.92 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Dunlap, Brennan J | Snohomish, US | 2 | 0 |
# of filed Patents : 2 Total Citations : 0 | |||
Russell, Don J | Arlington, US | 3 | 1 |
# of filed Patents : 3 Total Citations : 1 |
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Patent Citation Ranking
- 0 Citation Count
- E05C Class
- 0 % this patent is cited more than
- 2 Age
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Fee | Large entity fee | small entity fee | micro entity fee | due date |
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3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jul 12, 2026 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 12, 2030 |
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