In 1954 Mr Alfred B Miller got a patent on a shaving brush head that would convert a can of foam into a brush... although a rather large and awkward one.
...object of the invention is to provide a device of this character whereby a brush carrying element may be detachably connected to the top of an ordinary container having a supply of soap and wherein an element may be operated to actuate the soap dispensing nozzle of the container.
...the principal object of our invention to provide a shaving brush that will be removably attachable to a lather dispensing container for use either independently, as an ordinary shaving brush, or in conjunction with a pressurized dispensing can for automatically feeding lather directly to the tip of the brush as needed in shaving.Part of the patent also describes an "improved" aerosol can where the valve was operated by pushing sideways and not down, for use in conjunction with said brush.
In the invention in the instant application, these problems are eliminated by encompassing the soap dispensing container in the handle of the shaving brush. The soap is discharged into the base of the brush bristles thereby evenly distributing itself throughout the bristles.
Further, in the event a container separate from the brush is desired or necessary, this invention can readily be adapted to function in substantially the same manner even though utilizing the extraneous soap supply.