12 bottom 20 sub assembly with gate 76 closing end 26 and rim 23 is charged via aperture 18 with formulation 50 and fourth plug 34 is snapped into body 12 in a formulation tight seal again closure 38 may be provided and fingers 30 partially hedge rim 23 to protect gate 74 from unwanted disturbance fig1 11 illustrate the characteristic manual operation of the alternative preferred embodiment as a downward upward or two stroke reciprocative cycle with valve 70 providing over center hinge action device 10 is generally upright with fingers 30 on or slightly above surface 52 the amount of formulation 50 dispensed in a cycle is related to the volume of rim 23 the cycle begins with valve 70 in a first position correlative with and defined by portion 76 in the everted first conformation with the valve in the said first position the user initiates the downward stroke by exerting a depressing or actuating force as by a finger upon button 75 as the user maintains the force the downward stroke continues portion 76 flexes and circular hinge line 79 tends to expand outwardly stem 72 moves downwardly gate 74 begins to open and as flange 73 approaches and then reaches port 22 the stroke is completed at a second position where as shown in fig1 the flange is stopped by and seats upon end 24 and closes the port while concurrently the gate is fully open fingers 30 space gate 74 from surface 52 the displacement of stem 72 between the first and second positions is the stroke length of valve 70 this ocha valve embodiment differs from the device.