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US 12,698,655 B2Granted
Door latch with worm gear
AssigneeThe Boeing Company
InventorAndrew J. Hubbard
Life of this patent
Estimating the term…
Abstract
Door latching systems, apparatus, articles of manufacture, and methods are disclosed. An example door latch includes a worm gear including a worm wheel and a worm screw, the worm wheel rotatable upon rotation of the worm screw; a lever operatively coupled to the worm wheel, the lever to rotate based on rotation of the worm wheel; a cam surface, the lever to contact the cam surface between a first rotational position and a second rotational position, the second rotational position different from the first rotational position; and a pin to enable rotation of the worm gear.
Claims17
A door latch comprising:
- a worm gear including a worm wheel and a worm screw, the worm wheel rotatable upon rotation of the worm screw;
- a lever operatively coupled to the worm wheel, the lever to rotate based on rotation of the worm wheel;
- a cam surface, the lever to contact the cam surface between a first rotational position and a second rotational position, the second rotational position different from the first rotational position;
- and
- a pin operable to enable rotation of the worm gear, wherein the pin is movable between an extended position and a retracted position, in the extended position, the pin is to prevent rotation of the worm wheel.
2 more elements
A door latch comprising:
- a worm gear including a worm wheel and a worm screw, the worm wheel rotatable upon rotation of the worm screw;
- a lever operatively coupled to the worm wheel, the lever to rotate based on rotation of the worm wheel;
- a cam surface, the lever to contact the cam surface between a first rotational position and a second rotational position, the second rotational position different from the first rotational position;
- and
- a pin operable to enable rotation of the worm gear, wherein the worm screw includes an interface to receive a key to move the pin and to transfer a torque from the key to the worm screw.
2 more elements
Dependencies are inferred from the claim text.