Seamless filter bags with a removable, refusable ring

Details Seamless filter bags with a removable, refusable ring Seamless filter bags with a removable, refusable ring

1989-06-30

1990-05-01

Jones, W. Gary

Liquid purification or separation

With repair or assembling means

Hoist or handle means

210448, 210452, 210470, 55363, 55378, 55381, 291638, B01D 2306, B01D 2910

Patent

active

049216066

ABSTRACT:
A seamless filter bag having a removable, reusable ring includes a heat sealed filter bag open on one end adapted to receive a removable ring therein. Openings are provided in the filter bag which receive inwardly extending protrusions on the ring thereby maintaining the integrity of the filter bag material. A handle adapted to be received by the inwardly extending protrusions on the filter ring permits the removal of the filter bag together with the ring and any material retained in the bag from a conventional filter basket.

REFERENCES:
patent: 2205706 (1937-10-01), Wolff
patent: 2890796 (1959-06-01), Blood
patent: 3204392 (1965-09-01), Schwab
patent: 4157964 (1979-06-01), Rishel
patent: 4268390 (1981-05-01), Cunningham
patent: 4490253 (1984-12-01), Tafara
patent: 4495072 (1985-01-01), Fields
patent: 4545833 (1985-10-01), Tafara
patent: 4669167 (1987-06-01), Asterlin
patent: 4775469 (1988-10-01), Zimmerly

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