the annulus by a fastener wherein the valve plate is adapted to contact a valve seat on a hydrogen producing fuel cover a diaphragm is coupled to the second end of the annulus by a fastener wherein the annulus extends through a container for holding the hydrogen producing fuel and wherein the diaphragm moves the valve plate relative to the valve seat responsive to a different in pressure across the diaphragm application_number US 19448708 A description in the following description reference is made to the accompanying drawings that form a part hereof and in which is shown by way of illustration specific embodiments which may be practiced these embodiments are described in sufficient detail to enable those skilled in the art to practice the invention and it is to be understood that other embodiments may be utilized and that structural logical and electrical changes may be made without departing from the scope of the present invention the following description of example embodiments is therefore not to be taken in a limited sense and the scope of the present invention is defined by the appended claims various embodiments of a pem fuel cell based power generator of various shapes are described in one embodiment the power generator is formed with the shape of a cr2032 battery which is commonly used in watches sensors and other electronic equipment such reduced height form factor may be achieved by one or more of several innovative features described herein fig1 is a cross section block diagram of a power generator 100 according to an example embodiment fig2 is a blown up cross section block diagram view of one side of the power generator 100 with numbering consistent.