Float adapted to track an interface between two liquids of...

Details Float adapted to track an interface between two liquids of... Float adapted to track an interface between two liquids of...

2006-06-27

2006-06-27

Williams, Hezron (Department: 2856)

Measuring and testing

Specific gravity or density of liquid or solid

Freely vertical reciprocable float with carried indicium

C073S305000, C073S319000, C073S321000, C073S309000, C340S623000, C116S228000

Reexamination Certificate

active

07066024

ABSTRACT:
A float adapted to track an interface between two liquids of differing density, includes a hollow buoyant body having an interior cavity adapted to retain liquid. At least one upper access opening is provided in the body, which is adapted to permit filling of the interior cavity with liquid. The interior cavity is capable of holding sufficient liquid to retard the buoyancy of the body. By filling the interior cavity with a liquid of a first density, the hollow buoyant body can be made to float at an interface with a lighter liquid of a second density.

REFERENCES:
patent: 2704891 (1955-03-01), Ferrier et al.
patent: 3906795 (1975-09-01), Kask
patent: 3935741 (1976-02-01), Zinsmeyer et al.
patent: 3946625 (1976-03-01), Miyazaki et al.
patent: 3975633 (1976-08-01), Larkin
patent: 4876888 (1989-10-01), Ricketts et al.
patent: 5050432 (1991-09-01), Barritt
patent: 5408874 (1995-04-01), Fleck et al.
patent: 5989414 (1999-11-01), Bzorgi

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