Pumps – Condition responsive control of pump drive motor – By control of electric or magnetic drive motor
Patent
1976-01-22
1977-09-06
Freeh, William L.
Pumps
Condition responsive control of pump drive motor
By control of electric or magnetic drive motor
206315B, F04B 4900, B65D 8500
Patent
active
040464911
ABSTRACT:
An apparatus for batch processing tennis balls for preserving their internal pressurization. The apparatus includes a high pressure reservoir and a lower pressure storage chamber integrally and unitarily housed within a single tank and separated by a bulkhead. An air compressor is connected to the high pressure reservoir and is controlled by a gauge apparatus to maintain a desired high pressure within the reservoir. The reservoir and storage chamber are connected together by a conduit which includes a low pressure regulator to maintain a desired pressure in the storage chamber. A passageway with an air-tight, removable lid provides access to the interior of the low pressure chamber for loading and unloading the tennis balls. The apparatus may also be used to repressurize tennis balls which have lost some of their inflation.
REFERENCES:
patent: 1207814 (1916-12-01), Stockton
patent: 1911125 (1933-05-01), Miller
patent: 3024800 (1962-03-01), Lewis
patent: 3415357 (1968-12-01), Van Natter
patent: 3581881 (1969-03-01), Hobb
patent: 3853222 (1974-12-01), Helms
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