System and method for analyzing gravity of used motor oil

Details System and method for analyzing gravity of used motor oil System and method for analyzing gravity of used motor oil

1990-01-17

1993-04-20

Bertsch, Richard A.

Pumps

Condition responsive control of pump drive motor

Having timer or delay means

417 18, 417 40, 417 44, 417 53, 417 63, 210 961, 137566, 137571, F04B 4906, F04B 4904

Patent

active

052036774

ABSTRACT:
A system and method for analyzing and collecting fluids for recycling or other disposal, such as used motor oil, by determining whether the liquid has a specific gravity falling within a predetermined range, selectively activating a pump cycle to transfer motor oil exhibiting a specific gravity within the predetermined range to a holding tank for environmentally safe storage until transportation to an appropriate recycling or other disposal center.

REFERENCES:
patent: 3029898 (1962-04-01), Fraser
patent: 4248599 (1981-02-01), Mommesin et al.
patent: 4420023 (1983-12-01), Cislak
patent: 4548088 (1985-10-01), Hood, Jr.
patent: 4629398 (1986-12-01), Cahalan
patent: 4997003 (1991-03-01), Brennan
patent: 5002154 (1991-03-01), Chen
patent: 5028212 (1991-07-01), Brophey et al.

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