US 12,606,306 B2 · Arrangement for actuating a closure element, device for dropping water from an aircraft for firefighting purposes, and aircraft

Abstract

An arrangement for actuating a closure element that is movable to selectively close and open up an outlet opening of a tank, which can be received or is accommodated in an aircraft, of a device for dropping water for firefighting. The arrangement is formed with a Geneva drive mechanism and makes it possible for the closure element situated in an opened position to be closed to close the outlet opening in a closed position, for the closure element to be locked in the closed position, and for the closure element locked in the closed position to be unlocked for opening the closure element, when the tank is full, to release water. A device with the arrangement for dropping water from an aircraft for firefighting purposes and an aircraft with the device are disclosed.

Claims20

Dependent claims

An arrangement for actuating a closure element that is movable to selectively close and open an outlet opening of a tank receivable in an aircraft of a device for dropping water for firefighting, the arrangement comprising:

a first Geneva drive and a second Geneva drive;
a common manually operable actuator in a form of a pivotable lever wherein movement of the lever sequentially and mechanically effects:
movement of the closure element to be locked from an opened position into a closed position by operation of the first Geneva drive;
locking of the closure element in the closed position by operation of the second Geneva drive;
and
unlocking of the closure element locked in the closed position to permit release of water;
wherein drive geometries of the first and second Geneva drives are mechanically coupled so as to be moved conjointly by the lever;
and
the arrangement operates without an electric, pneumatic, or hydraulic actuator.

6 more elements

the arrangement is formed with a Geneva drive mechanism;
the arrangement at least makes it possible for:
the closure element, when situated in an opened position, to be closed to close the outlet opening in a closed position;
the closure element to be locked in the closed position;
and
the closure element locked in the closed position to be unlocked for opening the closure element, when the tank is full, in order to release water;
wherein the Geneva drive mechanism comprises a first Geneva drive and a second Geneva drive;
and
wherein:
by operation of the second Geneva drive, a locking element can be moved, by which the closure element can be locked in the closed position;
and/or
by operation of the second Geneva drive, a fastening hook can be moved, by which the locking element can be temporarily fastened to be prevented from moving out of a locking position.

9 more elements

Dependencies are inferred from the claim text.

Arrangement for actuating a closure element, device for dropping water from an aircraft for firefighting purposes, and aircraft

Life of this patent

Arrangement for actuating a closure element, device for dropping water from an aircraft for firefighting purposes, and aircraft

Life of this patent

Abstract

Claims20