Water filter gauge for coffee brewer

Details Water filter gauge for coffee brewer Water filter gauge for coffee brewer

1992-12-18

1994-06-28

Cuchlinski, Jr., William A.

Signals and indicators

Indicators

Fluid flow

116266, G01L 1912

Patent

active

053237315

ABSTRACT:
A filter gauge comprising a piston operable in a pressurized cylinder, the piston having a rod which projects from the cylinder, and grippers mounted within the cylinder and accommodating movement of the piston and rod having indicia indicating the lowest pressure reached in the cylinder as a water conduit to which the cylinder is connected is being drained. The grippers prevent the rod from moving in the opposite or extending direction as the cylinder is being pressured gradually by the water seeping through the filter and equalizing the pressure at both sides thereof.

REFERENCES:
patent: 2002883 (1935-05-01), Deming
patent: 3067618 (1962-12-01), Briechle
patent: 3068703 (1962-12-01), Morton
patent: 3200787 (1965-08-01), Darnell
patent: 4527429 (1985-07-01), Combest et al.

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