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John David Hamtil

age ~65

from Cypress, CA

Also known as:
  • John D Hamtil
  • John J Hamtil

John Hamtil Phones & Addresses

  • Cypress, CA
  • Costa Mesa, CA
  • Westminster, CA
  • 10222 Jennrich Ave, Garden Grove, CA 92843
  • San Jose, CA
  • Santa Ana, CA

Education

  • Degree:
    High school graduate or higher

Emails

Us Patents

  • Sound Indicative Leveling Apparatus

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  • US Patent:
    54837480, Jan 16, 1996
  • Filed:
    Aug 3, 1994
  • Appl. No.:
    8/285215
  • Inventors:
    Lyle W. Groves - La Mirada CA
    Martha R. Groves - La Mirada CA
    John D. Hamtil - Garden Grove CA
  • International Classification:
    G01C 906
  • US Classification:
    33366
  • Abstract:
    A sound indicative leveling apparatus comprising an arcuate leveling tube having free and sealed ends extended upwards; a coupling mechanism for securing an external object to be leveled above or below the leveling tube; leveling circuitry further comprising a power source for supplying electrical energy; oscillation circuitry coupled to the power source and adapted to be keyed by an oscillation activation signal for generating speaker activation signals at given frequencies; a speaker coupled to the oscillation circuitry for generating audible tones upon receipt of the speaker activation signals; a switch mechanism disposed along the leveling tube and extended therein and coupled between the oscillator circuitry and the power source; and liquid conductive material disposed within the leveling tube of an amount to electrically engage the switch mechanism based upon leveling tube orientation and thereby generate an oscillator activation signal.
Name / Title
Company / Classification
Phones & Addresses
John Hamtil
Owner
Hamtil Enterprises
Computer Related Services
10222 Jennrich Ave, Garden Grove, CA 92843
7145314246
John Hamtil
Managing
Forways LLC
Retail
10222 Jennrich Ave, Garden Grove, CA 92843

Facebook

John Hamtil Photo 1

John Hamtil

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Friends:
Salami Stick, Kathy Groves Anderson, Kathy Clinkenbeard Groves

Youtube

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