Fluent material handling – with receiver or receiver coacting mea – Drip prevention by flow reversing and/or overfill removal – By means reversing direction of flow
Patent
1990-03-08
1991-02-26
Recla, Henry J.
Fluent material handling, with receiver or receiver coacting mea
Drip prevention by flow reversing and/or overfill removal
By means reversing direction of flow
141250, 239570, 222494, B67C 302
Patent
active
049954318
ABSTRACT:
An apparatus for filling a specified amount of liquid comprises a vertical tubular filling nozzle, a damper attached to the lower end of the filling nozzle and pivotally movable upward and downward, a vertical rod supported upwardly and downwardly movably inside the filling nozzle, a connecting member connecting the free end of the damper to the lower end of the vertical rod, a spring biasing the vertical rod upward to hold the damper closed against the gravity on the liquid within the nozzle, and a metering cylinder for feeding the liquid to the nozzle in the specified amount at a time to open the damper against the spring. An annular seat facing downward is formed on the inner surface of the nozzle approximately at the midportion of its height. A liquid channel blocking annular member is mounted on the vertical rod so as to come into contact with the seat simultaneously when or immediately before the damper is closed. The volume of liquid fed from the metering cylinder to the nozzle at a time is greater than the volume of liquid to be accommodated in the nozzle in the portion thereof under the blocking member.
REFERENCES:
patent: 3831821 (1974-08-01), Doyen
patent: 4406215 (1983-09-01), Lacasse
patent: 4462436 (1984-07-01), Rangwala
patent: 4537335 (1985-08-01), Rangwala et al.
patent: 4798337 (1989-01-01), Shimokawa
Fujikawa Yasuji
Saijo Yoshihiro
Wakabayashi Shigeru
Yamane Yoshitaka
Jacyna Casey
Recla Henry J.
Shikoku Kakoki Co. Ltd.
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