Automatically opened and closed barrel

Details Automatically opened and closed barrel Automatically opened and closed barrel

1989-10-02

1991-10-15

Wityshyn, Michael

Coating apparatus

Immersion or work-confined pool type

Tumbling particulate work

118500, 204213, B05C 308, C25D 1720

Patent

active

050564560

ABSTRACT:
An automatically opened and closed barrel is disclosed for use in plating treatments, chemical conversion coating treatments, etc. This barrel is provided with an opening and closing cam having a groove at a top part thereof and a slidable supplementary plate which covers the groove of the cam. A lid is pivoted relative to the barrel for covering an opening therein. A lever is fixed for pivotal movement with the lid, and only when the lid is required to be opened, the supplementary plate is slid so as to expose the groove in the cam. When this occurs, a free end of the lever is dropped into the groove of the cam such that the lid uncovers the barrel opening. The lever is prevented from dropping into the groove of the cam at every rotation of the barrel because the supplementary plate covers the groove at the cam which it is unnecessary to have the barrel opening uncovered, with the result of a longer usable life of the barrel.

REFERENCES:
patent: 3583739 (1971-06-01), Gill
patent: 3861654 (1975-01-01), Singleton
patent: 3934548 (1976-01-01), Kaluza
patent: 4014774 (1977-03-01), Noonan
patent: 4543906 (1985-10-01), Glatt et al.
patent: 4753255 (1988-06-01), Melin

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