| Precision Valve Corporation Patent applications |
| Patent application number | Title | Published |
|---|
| 20110253749 | LOCKING AEROSOL DISPENSER - An aerosol valve actuator with a top portion rotatable on a bottom portion. The entire top portion in one rotatable position is depressible vertically to actuate the valve. A click post and clicking rib provide a single click in each direction of rotation. Flanges on top and bottom portions interact to stop rotation as soon as each click occurs. Plastic springs interact with spring biasing members only when the top portion is in actuating position, and assure return of the actuator top portion to full upward position for rotation after actuation of even a short-stemmed valve. Downwardly extending flexible connecting flanges connect the actuator top and bottom portions. The top portion has a lower periphery with a plurality of upwardly extending indentations to overlie lateral ribs in the lower portion in actuation position. The top and bottom portions have interfitting cylinders to stabilize the top portion and maintain verticality. | 10-20-2011 |
| 20090078902 | Aerosol valve - An aerosol valve for dispensing polyurethane foam including a plastic liner shield to prevent environmental moisture permeating through the sealing grommet into the aerosol can to harden product and disable the valve. The liner has an annular upper portion in the mounting cup channel for sealing to the can bead, an intermediate portion surrounding the grommet in the can, and a lower annular flange extending between the valve stem base and lower grommet surface. A method to assemble the valve components includes inversion of the liner, grommet, valve stem, and mounting cup. | 03-26-2009 |
| 20090014679 | Plastic aerosol valve and method of assembly, mounting and retention - A plastic aerosol valve with a plastic valve stem, plastic housing, plastic mounting cup, and plastic locking ring. The plastic valve is assembled into the mounting cup. The plastic housing is assembled into the plastic mounting cup by snap fittings. The plastic mounting cup has a peripheral portion that snap fits up into the plastic locking ring. The plastic locking ring has frangibly-connected upper and lower portions. The lower portion snap fits with the top of a plastic product bottle to mount the aerosol valve assembly on the bottle. The upper ring portion thereafter is telescoped downwardly over the lower ring portion to lock and retain the aerosol valve assembly on the pressurized bottle. The plastic mounting cup can be molded separately, or integrally with the plastic locking ring. A check valve may be contained in the valve stem. | 01-15-2009 |
| 20080308582 | Method of making aerosol valve mounting cups and resultant cups - Metal discs, preferably circular, are cut to a precise diameter and drawn to a preform with a channel and skirt for an aerosol valve mounting cup. The preform then undergoes further forming operations at stations in a press system. “Bumping” is carried out on the skirt edge at a station, to eliminate non-burr trimming of the cup edge, save material and obtain a carefully controlled skirt height and a substantially even skirt edge with minimized earring. The resultant cup terminating skirt edge is characterized by reformed metal. A further coaxing or pinch-cut operation may be performed on the cup skirt. | 12-18-2008 |
