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Rami Grand

Deceased

from Brooklyn, NY

Also known as:
  • Ram Grand
  • Ramirez Grand
  • Grand Rami

Rami Grand Phones & Addresses

  • Brooklyn, NY
  • 1669 E 12Th St #2, Brooklyn, NY 11229

Us Patents

  • Method For Detecting Imitation Gold, Using A Pen-Like Device

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  • US Patent:
    61435724, Nov 7, 2000
  • Filed:
    Sep 14, 1998
  • Appl. No.:
    9/151242
  • Inventors:
    Rami Grand - Brooklyn NY
    Ella Grand - Brooklyn NY
  • International Classification:
    G01N 3320
  • US Classification:
    436 80
  • Abstract:
    A pen-like device having a scriber for scratching a deep groove in a yellow colored, metal article object, such as jewelry, being tested for the gold content thereof, and an applicator provided on an opposite end of the pen-like device for conveying an acid solution, which is housed within the pen-like device, onto, around and in the groove to observe whether there is a color change to the testing area, on which the acid solution was applied, making the the testing area darker or black, where such a color change would indicate that the metal article or object is imitation gold, or has a gold content which is less than minimum karat requirement of the test. The acid solution includes a specific percentage of nitric acid which changes the color of the testing area when in contact with most imitation gold materials, preferably a specific percentage of hydrochloric acid to coact with the nitric acid, and a specific percentage of selenious acid which changes the color of the testing area when contacting a bronze or brass material. The specific percentage of each acid can easily be determined, for testing gold having a specific karat value.
Name / Title
Company / Classification
Phones & Addresses
Rami Grand
ARG TOOLS INC
Whol Industrial Supplies
1669 E 12 St, Brooklyn, NY 11229

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