Hydraulically damped actuator
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United States of America Patent
Stats
-
Nov 17, 2020
Grant Date -
May 7, 2020
app pub date -
Jun 20, 2017
filing date -
Dec 27, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hydraulically damped actuator suitable for closing a hingedly connected closure system includes a tubular cylinder barrel, an energy storing mechanism for storing energy when the closure system is being opened and for restoring the energy to close the closure system, and a hydraulic damping mechanism for damping a closing movement of the closure system. The damping mechanism has a closed cylinder cavity that is partly formed by a collar that is integrally formed with the tubular cylinder barrel, a guiding element that is bolted to said collar and a piston that is irrotatably and slideably with respect to the tubular cylinder barrel coupled to said guiding element. The guiding element is fixedly positioned with respect to the tubular cylinder barrel, without needing a screw connection.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2017 Application Filing Year
- E05F Class
- 724 Applications Filed
- 534 Patents Issued To-Date
- 73.76 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- E05F Class
- 47.55 % this patent is cited more than
- 5 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 | May 17, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 17, 2032 |
