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Frank J Petkewicz

from Chadwick, IL
Age ~86
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Also known as:
Frank J Petkiewicz, Frank Z
Phone and address:
77 Plummer Ave, Chadwick, IL 61014
(815) 684-5694
Related to:
Catie Lydon, 53Jason E Petkewicz, 49James H Morris, 77E Z, 77Margaret F Morris, 61James T Morris, 74Ryan A Morris, 31Victoria M Morris, 62Elizabeth M Petkewicz, 55Marilyn R Petkewicz, 84
Connected to:
John G Petkewicz, 64William Petkewicz, 79Wanda Petkiewicz, 74Karen M Petkis, 66Ann M Petko, 73Jeremy J Petko, 38Joseph B Petko, 77Fern Petkoff, 81Aleksandra V Petkova, 33Atanas Y Petkov, 41

Frank Petkewicz Phones & Addresses

  • 77 Plummer Ave, Chadwick, IL 61014 (815) 684-5694
  • Mackinaw, IL
  • 5332 Lockwood Ave, Chicago, IL 60638 (773) 767-4637
  • 5284 Lockwood Ave, Chicago, IL 60638

Publications

Us Patents

Adjustable Flux Generator A Magnetically Activated Electronic Switch

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US Patent:
43227090, Mar 30, 1982
Filed:
Oct 14, 1980
Appl. No.:
6/196952
Inventors:
David L. Vonder - Addison IL
Frank J. Petkewicz - Chicago IL
Assignee:
GTE Automatic Electric Labs Inc. - Northlake IL
International Classification:
H01L 4304
US Classification:
338 32H
Abstract:
An adjustable flux generator used in conjunction with a Hall effect switch, comprising a coil and a magnetic circuit including an adjustable core. The coil produces a field of magnetic flux in response to the presence of an electrical current which is transmitted via the magnetic circuit to the Hall effect switch. The adjustable core is disposed to be manually adjusted to control the amount of magnetic flux delivered to the Hall effect switch. When the flux exceeds the Hall switch operate point the switch produces an output signal.

Electromagnetic Device Utilizing A Pair Of Magnetically Activated Electronic Switches

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US Patent:
43227082, Mar 30, 1982
Filed:
Oct 14, 1980
Appl. No.:
6/196943
Inventors:
Kenneth H. Oehrig - Plainfield IL
Frank J. Petkewicz - Chicago IL
Assignee:
GTE Automatic Electric Labs Inc. - Northlake IL
International Classification:
H01L 4304
US Classification:
338 32H
Abstract:
An electromagnetic device utilizing a pair of Hall effect switches for detecting the presence or absence of an electrical current of a first and a second value. The device includes a flux generator for generating a field of magnetic flux and a magnetic circuit including a pair of adjustable cores for varying the amount of flux delivered to the Hall switches. A first Hall switch outputs a signal responsive to the presence or absence of a current of a first value and the second a signal representative of a current of a second value.
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Frank J Petkewicz from Chadwick, IL, age ~86 Get Report