Mouthpiece valve for breathing equipment
AssigneeAuergesellschaft GmbH
InventorVolker Huennebeck
Life of this patent
Estimating the term…
Abstract
A mouthpiece valve for breathing equipment which utilizes a spring-loaded axially movable valve disc to close the connection to the breathing equipment when the valve is in an inoperative position. To lock the valve in the closed position, it is provided with two tapered pins which are externally inserted into the cover of the valve casing and which abut a curved member which is in operative connection with the valve disc via a valve stem. The two tapered pins are secured by a safety bridge placed on the cover which locks the curved member to the valve stem and the valve disc and maintains the valve in a closed position. To open the closed valve, the safety bridge is removed in a single motion, preferably by means of a cord disposed on a nose clip when the nose clip is put on for use of the breathing equipment.
Claims10
A mouthpiece valve for breathing equipment comprising:
- a valve casing;
- a valve seat, the valve seat being inside the valve casing;
- an axially movable valve disc, the valve disc being contained within the valve casing and being in operative connection with the valve seat;
- a valve stem having a first end connected to the valve disc;
- two movable pins, the movable pins being disposed substantially parallel to and on either side of the valve stem, the moveable pins having a first end outside the valve casing and a second end inside the valve casing;
- a connecting member, the connecting member being disposed inside the valve casing and substantially perpendicular to the two movable pins and connected between a second end of the valve stem and the second end of each movable pin;
- a flange member, the flange member being disposed outside the valve casing and substantially perpendicular to the two movable pins at the first ends thereof, the flange member capable of being moved in conjunction with the movable pins and the valve disc between a first position in which the valve disc is not in contact with the valve seat such that air can pass through the valve seat, and a second position in which the valve disc is in operative contact with the valve seat such that air cannot pass therethrough;
- a biasing means to bias the valve disc into the second position;
- a front cover for the valve casing containing at least one circular hole;
- at least one removable pin, the removable pin being partially insertable into the hole in the cover such that a first end of the removable pin abuts the connecting member when the valve disc is in the second position;
- and a locking mechanism for securing the removable pin in the hole in the cover.
Dependencies are inferred from the claim text.