Hair building solids dispenser for one handed operation
A dispenser for hair building solids can be readily operated and aimed with one hand. A bulb that provides air for suspending the solids is located directly on top of a dispenser body. The bulb can be depressed by a single finger when the device is held in one hand. When the compressed air exits the bulb, it follows a direct straight downward pathway to the surface of the hair building solids. Air exiting the bulb passes through an air injecting orifice that is directed towards the surface of a mass of hair building solids suspending the solids within the turbulently pressurized container, which solids are then directed smoothly by the domed undersurface of the dispenser body into the straight bore of a short nozzle. The path followed by the solids is without bends thereby avoiding clogging.
1. A dispenser for powder configured for one-handed operation comprising:
a dispenser body having a first end and a second end and configured so that one of the ends is attachable to a container of powder;
a hollow bulb of elastic, resilient material disposed on and attached to an end of the dispenser body opposite the end to which the container of powder is attachable, the bulb having an opening aligned with and in fluidic communication with an air injecting passageway approximately through a geometric center of the dispenser body so that when the bulb is depressed a current of air is expelled from the bulb and passes in a substantially straight line through the air injecting passageway to strike a surface of the powder when the container of powder is attached to the dispenser body thereby creating an air suspension of powder within a turbulently pressurized interior space of the container;
a one-way air injecting valve integral with and inline with the air injecting passageway which opens during dispensing and closes during refill of the bulb;
a one-way air refill valve integral with the dispenser body which opens to permit refilling of the bulb by air passing through a refill channel between the bulb and the dispenser body and closes during dispensing;
an insert fixed to the dispenser body, the insert forming a portion of the air injecting passageway with said air injecting valve captured between the insert and the dispenser body;
a continuous region beneath the dispenser body in direct fluidic communication with the interior space of the container of hair building solids attached to the dispenser body; and
a nozzle projecting from the dispenser body having within a substantially straight passageway that directly opens into the continuous region,
whereby when the container of powder is attached to the dispenser body, the container can be grasped by one hand leaving a finger free to depress the bulb thus creating an air suspension of powder within the interior space of the container whereupon the air suspension flows through the continuous region beneath the dispenser body straight into the passageway within the nozzle and exits an orifice thus dispensing the powder.
2. The dispenser according to claim 1 further comprising a transitional chamber in direct communication with the continuous region and in-between the continuous region and the passageway within the nozzle.
3. The dispenser according to claim 1 , wherein said one-way valves are ball valves.
4. The dispenser according to claim 3 , wherein said air injecting valve further comprises a spring.
5. The dispenser according to claim 1 , wherein the powder comprises hair building solids.