Ladders, ladder hinges and related methods
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 13, 2020
Grant Date -
Dec 14, 2017
app pub date -
Jun 14, 2017
filing date -
Jun 14, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Ladders, ladder components and related methods are provided including embodiments of a hinge that may be used in a combination ladder. In one embodiment, a hinge mechanism includes a first hinge assembly and a second hinge assembly. The first and second hinge assemblies are coupled together for relative rotation about a defined axis. An adjustment mechanism enables the two hinge assemblies to be selectively locked or unlocked to prohibit or permit relative rotation, respectively. In one embodiment, the adjustment mechanism includes a lock plate displaceable along a first axis and a retainer displaceable along a second axis. The retainer is configured to hold the lock plate in a disengaged state until a release structure displaces the retainer away from the lock plate. The release structure may be configured to be actuated and displace the retainer upon relative rotation of the hinge assemblies to (or through) a predetermined angular configuration.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2017 Application Filing Year
- E06C Class
- 164 Applications Filed
- 113 Patents Issued To-Date
- 68.91 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 9 Citation Count
- E06C Class
- 75.86 % 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 | Apr 13, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 13, 2032 |
