An integral low profile cell closure equipped with resealable safety valve means is disclosed having a cover, an apertured seat centrally enclosed within the cover, elongated resilient sealing means bearing on the seat, and a top cover bearing on the resilient means at a position outwardly spaced from the bearing positions formed with the seat. The cover and top cover are secured together at their respective marginal portions, effected by crimping the cover around the top cover, for instance, to...

A compound prosthesis for surgical implantation is provided that has an elastic sack or envelope which is adapted to contain a foam core and a quantity of a liquid in the cells of the core. The envelope has a flexible tube for adding the liquid at the time of implantation so that the size of the implant can be adjusted as desired. The flexible tube can then be tied off and concealed in a pocket in the outer layer of foam or sponge material.

A surgically implantable breast prosthesis formed from a flexible container having a front wall and a back wall; the front wall having an outer shape approximately that of the human breast and the back wall having a shape approximately that of the chest wall. The container includes a prolongation extending angularly outwardly toward the axilla region of the anatomy and overlying the pectoral muscle. The container is filled with a silicone gel and a fabric impregnated with the same material used ...

A seat in particular a front seat for motor vehicles provided with a hinged tiltable back in which as the back tilts there is a corresponding sliding displacement of the seat in the same direction, and likewise on restoring the back into the normal position there is a corresponding sliding displacement of the seat in the direction opposite the preceding, thereby to provide better access for any back seats in two-doored motor vehicles.

A breast prosthesis having a porous polyester fabric for connecting the prosthesis to the chest wall and filled with layers of silicon gel material of varying viscosity to provide a more natural appearance of the breast.

A prosthesis for implantation in the human body to fill a cavity left by the removal of a portion of the anatomy or to change an existing body contour. The prosthesis has fixation means around which tissue will grow so as to hold the prosthesis in place. An optional flexible, inelastic loop provides temporary fixation until the tissue has grown around the fixation means. The fixation means can be made of a silicon elastomer, which is compatible with tissue. The fixation means may, for example, t...

A submersible battery vent plug is disclosed which includes a valve with a double seal, the first seal being adapted to close under an initial fluid pressure and the second seal adapted to close under a pressure higher than the initial pressure.

An electric cell having a hermetic pressure seal, and subject to development of high internal gas pressure in the normal operating region, and provided with an auxiliary venting region at atmospheric pressure separated from the operating region with a frangible disc in a separating wall between operating and venting regions with cotton flock in the venting region to retard any high pressure gas and electrolyte injected after fracture of the disc by high pressure in operating region.

A battery has a wrapper member comprising the combination of an inner layer which is pervious to gases generated by the cell and an outer layer which is impervious to liquids and which is less pervious than the inner layer to the gases generated by the cell. The inner and outer layers are laminated to one another throughout some but not all of their coextensive surfaces, with the unlaminated portions providing a passageway between the two layers for the venting of gases generated on the interior...

A nonspill battery vent plug is disclosed which includes a tiltable member which lifts a valve stem to close the plug whenever it is tilted. Improved means of connecting the valve stem and the weight member is provided to prevent fouling and malfunction.