Door release mechanism
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 13, 2018
Issued Date -
N/A
app pub date -
May 2, 2016
filing date -
Oct 24, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A door hoist includes a bracket, drive sprocket, ring gear, hub assembly, set of planetary gears, and governor shaft. The drive sprocket has a drive sprocket axis. The ring gear is fastened to the drive sprocket. The ring gear has a ring gear axis that is in alignment with the drive sprocket axis. The hub assembly includes a connector to receive a door drive shaft and secure the door drive shaft in a fixed rotational alignment with the hub assembly. The set of planetary gears is rotationally mounted to the hub assembly. The set of planetary gears is configured to mate with the ring gear. The governor shaft includes a sun gear, brake assembly, and link. The sun gear is configured to mate with the set of planetary gears. The brake assembly has an engaged position and a disengaged position. The sun gear is rotationally fixed relative to the bracket in response to the brake assembly being in the engaged position. In response to the brake assembly being in the disengaged position, rotation of the sun gear is unfixed relative to the bracket. The link secures the brake assembly in the engaged position. The link is configured to melt in response to an ambient temperature exceeding a predetermined temperature.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2016 Application Filing Year
- E06B Class
- 1055 Applications Filed
- 752 Patents Issued To-Date
- 71.28 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- E06B Class
- 0 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 13, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 13, 2029 |
