Corrosion detector

Claim 2

A corrosion detector for indicating chemical corrosion on a metal surface and when the surface should be washed, the detector comprising: a filter paper for placing on the metal surface to be tested, said filter paper saturated with a solution of water, the water in said filter paper combining with the chemicals on the metal surface to form a chemical solution in said filter paper; a probe disposed on top of said filter paper, said probe passing an electrical current through the chemical solution in said filter paper; and a battery operated wash meter electrically connected to said probe, said wash meter including means for measuring the electrical resistance of the chemical solution and indicating whether the metal surface should be washed.

Claim 3

The detector as described in claim 1, wherein said probe includes a pair of electrodes, said electrodes positioned in a pre-determined spaced relationship from each other in said probe, one of said electrodes passing an electrical current received from said battery operated wash meter through the chemical solution in said filter paper to the other electrode.

Claim 4

The detector as described in claim 1, wherein said means for measuring includes electrical circuitry having a light emitting diode electrically wired for indicating when the chemical solution has reached a pre-determined electrical resistance.

Claim 5

The detector as described in claim 1, wherein said battery operated wash meter further includes a test switch for electrically turning the electrical power on and off to said wash meter.

Claim 6

The detector as described in claim 1, wherein said probe further includes a flexible cable for electrically connecting said probe to said wash meter.

Claim 7

The detector as described in claim 1, wherein said battery operated wash meter includes a probe storage area therein for receiving said probe in said wash meter when said probe is not in use.

Claim 8

A corrosion detector for indicating chemical corrosion on a metal surface and when the surface should be washed, the detector comprising: a filter paper for placing on the metal surface to be tested, said filter paper saturated with a solution of water, the water in said filter paper combining with chemicals on the metal surface to form a chemical solution in said filter paper; a probe having a pair of electrodes, said electrodes positioned in a pre-determined spaced relationship from each other in said probe, said probe placed on top of said filter paper, the ends of said electrodes contacting the surface of said filter paper and one of said electrodes passing an electrical current from said electrode through the chemical solution in said filter paper to the adjacent electrode; and a battery operated wash meter, said wash meter electrically connected to said electrodes in said probe by a flexible cable, said wash meter including means for measuring the electrical resistance of the chemical solution and indicating whether the metal surface should be washed.

Claim 9

A corrosion detector for indicating chemical corrosion on a metal surface and when the surface should be washed, the detector comprising: a filter paper for placing on the metal surface to be tested, said filter paper saturated with a solution of water, the water in said filter paper combining with chemicals on the metal surface to form a chemical solution in said filter paper; a probe having a pair of electrodes, said electrodes positioned in a pre-determined spaced relationship from each other in said probe, said probe placed on top of said filter paper, the ends of said electrodes contacting the surface of said filter paper and one of said electrodes passing an electrical current from said electrode through the chemical solution in said filter paper to the adjacent electrode; and a battery operated wash meter, said wash meter electrically connected to said electrodes in said probe by a flexible cable, said wash meter including means for measuring the electrical resistance of the chemical solution and indicating whether the metal surface should be washed.

Claim 10

The detector as described in claim 7, wherein said means for measuring includes electrical circuitry connected to a test switch and a pair of light emitting diodes, when said switch is turned on, one of said diodes indicates if the electrical resistance of the chemical solution is below a pre-determined value and the other diode indicates the electrical resistance is above the pre-determined value.