Patent 4277001 Issued on July 7, 1981. Estimated Expiration Date: September 12, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
222/321.4, With plural-point inlet to casing222/321.8, With relatively movable actuator222/376, With plural-point inlet to casing222/401, Container-mounted fluid pressure generating pump or pulsator239/333, Separable pump with holder mount or securing means239/342Auxiliary trap, articulated or plural point inlet to eduction tube
A miniature type, invertible atomizing spray mechanism includes a receptacle for liquid to be atomized, and further includes at least one pressure chamber, which depends within the receptacle and is arranged to have received therein a piston with which a reciprocable spray head is arranged to cooperate. Beneath the pressure chamber is disposed a valve member which is adapted to control the suction of the liquid into the pressure chamber. The valve member opens an inlet of the pressure chamber by the reciprocal movement of the spray head. The inlet of the pressure chamber is in fluid communication with a passage leading to a three-way valve. The three-way valve includes upper and lower valving assembly which communicate with a passage extending to the cylinder of the atomizer, each of the valving assembly being in communication with the bottom of the receptacle as well as an area adjacent to the neck portion of the atomizer through elongated tubular elements.