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Marcia H Dalkert

age ~84

from Stevens Point, WI

Also known as:
  • Marcia C Dalkert
  • Melissa H Dalkert

Marcia Dalkert Phones & Addresses

  • Stevens Point, WI
  • 280 Lucerne Ct, Plover, WI 54467 • (715)3421604
  • Oakland, CA
  • San Francisco, CA
  • 17945 Lincrest Dr, Brookfield, WI 53045 • (262)7816771
  • Ithaca, NY
  • 17945 Lincrest Dr, Brookfield, WI 53045 • (262)4833086

Work

  • Position:
    Retired

Education

  • Degree:
    High school graduate or higher

Us Patents

  • Blast Hole Drill With Improved Deck Wrench

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  • US Patent:
    6298926, Oct 9, 2001
  • Filed:
    Feb 10, 2000
  • Appl. No.:
    9/501829
  • Inventors:
    Marcia H. Dalkert - Brookfield WI
    Jack W. Nelson - Milwaukee WI
    David A. Kaphingst - Sussex WI
    Curt L. Silvestri - Mesa AZ
  • Assignee:
    Harnischfeger Technologies, Inc. - Wilmington DE
  • International Classification:
    E21B 300
    E21B 1900
  • US Classification:
    175 52
  • Abstract:
    A blasthole drill including a deck wrench for holding a drill pipe section to facilitate the unthreading of an adjoining drill pipe section from an overall drill pipe string. The deck wrench includes an engagement surface which is selectively engageable with an engagement surface of a drill pipe section to substantially prevent rotation of the drill pipe section in either direction about its longitudinal axis. The deck wrench is engageable with an upper drill pipe section so that a joint between the upper drill pipe section and a rotary head can be tightened when the rotary head is rotated in one direction. The deck wrench is engageable with a lower drill pipe section so that a joint between the lower drill pipe section and the upper drill pipe section can be broken when the rotary head is rotated in an opposite direction. The joint between the rotary head and the upper drill pipe section, once tightened, should be stronger than the joint between the upper drill pipe section and the lower drill pipe section. As a result, when the rotary head is rotated in order to break the joint between the upper drill pipe section and the lower drill pipe section, the joint between the rotary head and the upper drill pipe section will not break.

Resumes

Marcia Dalkert Photo 1

Marcia Dalkert

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Marcia Dalkert

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Marcia Dalkert

Education:
Illinois Wesleyan University - Art Education

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