Minnesota Mining and Manufacturing Company

Trevor J Wilde

Philip A Jinks

Charles G Thiel

Philip Bolton

Metered-dose aerosol valves

Metered dose dispensing valves providing good dosage reproducibility with formulations having a propensity to cream and with low concentration formulations. Valves having a tank retaining cup have a small inlet aperture of no more than 0.7 mm and preferably the tank retaining cup follows the configuration of the end of the valve stem. Valves having a bottle emptier attached to the valve stem have a filling channel in the valve stem which protrudes only slightly from the metering chamber when the valve is in its inoperative position.

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Burnely, United Kingdom

Trevor J Wilde