Testing Device For Precious Metals

• US 20080078677A1
• Filed: 11/09/2006
• Published: 04/03/2008
• Est. Priority Date: 11/11/2005
• Status: Abandoned Application

• Current Assignee: Presidium Instruments Pte., Ltd.
• Original Assignee: Presidium Instruments Pte., Ltd.
• Inventors: Chua, Yih, Tam, Kui
• Application Number:
  US11/794,744
• Publication Number:
  US 20080078677A1
• Time in Patent Office: Days
• US Class Current: 204/406
• CPC Class Codes: G01N 27/416 Systems G01N27/27 takes precedence
• CPC Class Codes: G01N 33/2028 Metallic constituents

Abstract

A self contained testing device (100) for assaying precious metals includes a housing (110) for various mechanical and electronics components integrated to form a compact testing device. The testing device (100) includes a gel dispenser, e.g. syringe (200), an anode probe (650) to which may be attached a specimen holder (653) or crocodile clip (907), a cathode probe (624), and an electronic circuit (691) connected to the anode and cathode probes for conducting and recording tests. A sample (686) is held in the sample holder (653), e.g. by a spring clip (667), and gel is dispensed through a nozzle (115) to connect the specimen and cathode probe. The characteristics of the resulting cell are analysed and the results provided on a display (612).

Claims

1-26. -26. (canceled)

27. A self contained electrolytic testing device for assaying precious metals comprising:

a housing with a detachable sub-housing, the housing further comprising an anode probe, which in use is attachable to a first surface of a specimen under test, and a cathode probe, which in use is positioned in proximity to a second surface of the specimen;

a gel dispenser mounted partially within the sub-housing, the gel dispenser containing an electrolytic gel, and in use dispensing the electrolytic gel to electrically link the cathode probe to the second surface of the specimen; and

electrical circuitry mounted within the housing, the electrical circuitry in use generating and analyzing current flow among the specimen, the electrolytic gel, the anode probe and the cathode probe.

28. The testing device of claim 27, wherein the electrical circuitry comprises a plurality of terminals, the terminals comprising a cathode terminal operatively coupled with the cathode probe, an anode terminal operatively coupled with the anode probe, and an output data terminal operatively coupled with at least one electronic display.

29. The testing device of claim 28, wherein the electronic display comprises an LCD display.

30. The testing device of claim 27, wherein the gel dispenser comprises a syringe having a plunger connected to a piston through a rod, the piston snugly fitting within the wall of the syringe.

31. The testing device of claim 30, wherein the plunger is mechanically coupled to a threaded section of a shaft, the plunger being displaceable by rotation of the shaft.

32. The testing device of claim 31, wherein rotation of the shaft is effected through a series of gears connected to a knob or a ratchet.

33. The testing device claimed of claim 31, wherein rotation of the shaft is effected through a knob or a ratchet acting directly on the shaft.

34. The testing device of claim 27 wherein the electrolytic gel is dispensed through a nozzle located on a distal wall of the housing.

35. The testing device of claim 34, wherein the gel dispenser comprises a spout.

36. The testing device of claim 35, wherein the spout is inserted into the nozzle located on the distal wall of the housing.

37. The testing device of claim 36, wherein a tip end of the nozzle is adapted to include a cathode probe.

38. The testing device of claim 28, wherein the testing device comprises a first arm having a first end coupled to a distal wall of the housing, and a second end coupled to a specimen holder, and wherein the first arm is electrically coupled to the anode terminal of the electrical circuitry.

39. The testing device of claim 38, wherein the first arm and the specimen holder form an electrical linkage between the specimen and the anode terminal of the electrical circuitry.

40. The testing device of claim 39, wherein the specimen holder comprises a first end comprising a spring clip and a second end, the second end coupled to the first arm.

41. The testing device claimed in claim 40, wherein the specimen holder is adapted to expose only a section of a specimen to the cathode probe.

42. The testing device of claim 28, wherein the testing device comprises a first arm comprising a first end coupled to a distal wall of the housing and a second arm coupled to a crocodile clip cable, and wherein the first arm and the crocodile clip cable form an electrical linkage between the specimen and an anode terminal of the electrical circuitry.

43. The testing device of claim 27, wherein the housing comprises a gel level indicator on an external surface of the housing.

44. The testing device of claim 27, wherein the precious metals include gold, silver and titanium.

45. An electrolytic testing device for assaying precious metals, the device comprising:

a housing;

electronic circuitry mounted within the housing for testing a specimen;

a gel dispenser removably mounted within the housing for dispensing an electrolytic gel therefrom;

an actuator mechanism within the housing for actuating the gel dispenser so as to dispense electrolytic gel therefrom;

an anode probe connected to an electronic circuit for connection in use to a specimen; and

a cathode probe connected to the electronic circuit for connection in use to a specimen via gel dispensed from the gel dispenser.

46. An electrolytic testing device for assaying precious metals, the device comprising:

a housing comprising a nozzle;

a gel dispenser within the housing for dispensing electrolytic gel from the nozzle;

an anode probe;

a cathode probe adjacent the nozzle; and

electronic circuitry mounted within the housing and operatively connected to the anode probe and the cathode probe for testing a specimen, wherein the arrangement of the cathode probe and the nozzle is such that the cathode probe is capable of making an electrical connection with a specimen through gel dispensed from the nozzle, such that an electrical cell is formed by the anode probe, the specimen, the gel and the cathode probe.