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Bruce E Terkelsen

from Wolfeboro, NH
Age ~86
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Also known as:
Bruce D Terkelsen, Bruce H Terkelsen
Phone and address:
344 Sewall Rd, Tuftonboro, NH 03894
(603) 569-1474
Related to:
William K Lorenz, 67
Connected to:
Joshua Terkelsen, 40Michele E Terkelsen, 72Mike Terkelson, 42Robert A Terkeltaub, 73Brandi A Terkeurst, 44Monica Z Terkeurst, 52Bonnie K Terkhorn, 39Eugene M Terkoski, 36Michelle L Terkoski, 55Paul Terkun, 55

Bruce Terkelsen Phones & Addresses

  • 344 Sewall Rd, Wolfeboro, NH 03894 (603) 569-1474
  • Moultonboro, NH
  • Alexandria, VA
  • 25 Nob Hill Rd, Cheshire, CT 06410 (203) 272-9232
  • East Hartford, CT

Professional Records

License Records

Bruce Ellington Terkelsen

Address:
42 Taylor Dr, Wolfeboro, NH 03894
License #:
A3824388
Category:
Airmen

Publications

Us Patents

Method And Apparatus For Epitaxial Solidification

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US Patent:
47141018, Dec 22, 1987
Filed:
Sep 29, 1986
Appl. No.:
6/913834
Inventors:
Bruce E. Terkelsen - Cheshire CT
Assignee:
United Technologies Corporation - Hartford CT
International Classification:
B22D 2704
US Classification:
1641222
Abstract:
Disclosed are a mold, apparatus and method for obtaining articles of controlled crystallographic orientation using solidification from seeds. The starter section of a directional solidification mold is adapted to both contain a seed and receive molten metal which is flowed over and about a seed to heat and partially melt it. A selector section of the mold has reduced cross section compared to the starter section so that only epitaxially solidified metal will be formed in the article section. A barrier layer resistive to molten metal is applied to portions of the seed to facilitate its removal and reuse.

Method And Apparatus For Production Of Directionally Solidified Components

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US Patent:
39318478, Jan 13, 1976
Filed:
Sep 23, 1974
Appl. No.:
5/508303
Inventors:
Bruce E. Terkelsen - Cheshire CT
Assignee:
United Technologies Corporation - Hartford CT
International Classification:
B22D 2506
US Classification:
164 4
Abstract:
In the manufacture of cast articles such as gas turbine blades and vanes from high temperature alloys or eutectics, the heating of the mold in readiness for pouring and the cooling of the mold after pouring are precisely controlled by mechanism responsive to thermocouples internal and external to the mold and moving with the mold and a thermocouple in fixed relation within the furnace. The mechanism is especially adapted for use with the withdrawal technique in which the mold when poured is withdrawn from within the heating furnace past a radiation baffle thereby maintaining a steep thermal gradient within the mold and moving relative to the mold to establish the rate of upward movement of the solidification front within the alloy.

Composite Shell Molds For The Production Of Superalloy Castings

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US Patent:
42445515, Jan 13, 1981
Filed:
Jun 30, 1978
Appl. No.:
5/920753
Inventors:
Bruce E. Terkelsen - Cheshire CT
Michael Cybulsky - Manchester CT
James S. Perron - Hudson OH
Assignee:
United Technologies Corporation - Hartford CT
International Classification:
B28B 734
US Classification:
249134
Abstract:
Composite ceramic shell molds for investment casting and subsequent directional solidification of nickel and cobalt base superalloys is described. The composite ceramic shell mold is composed of an inner component having an alumina content of at least 80 percent and an average thickness of about ten mils and an outer layer composed predominantly of zircon having a thickness of from 0. 1 to 0. 4 inches. The alumina component of the shell mold is wet by the superalloy material and this wetting action is believed to cause the substantial elimination of a surface defect problem known as chain porosity. The zircon component of the shell mold had desirable mechanical properties and may easily be removed from the solidified casting. The alumina and zircon components are bonded together in such a fashion that they will not separate during the casting process.

Seed And Method For Epitaxial Solidification

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US Patent:
42895707, Sep 15, 1981
Filed:
Dec 13, 1978
Appl. No.:
5/969129
Inventors:
Bruce E. Terkelsen - Cheshire CT
Assignee:
United Technologies Corporation - Hartford CT
International Classification:
C30B 2102
C30B 1700
US Classification:
1641221
Abstract:
A seed and method for epitaxial solidification of materials, a preferred seed having at least a portion with a melting point 20. degree. -45. degree. C. depressed from that of the alloy being solidified into an article. Boron and silicon are preferably added to nickel superalloys seeds when directionally solidified columnar grain and single crystal articles are formed. Improved seeds also have surface compositions which promote the dissolution of surface contamination films that interfere with epitaxy.
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Bruce E Terkelsen from Wolfeboro, NH, age ~86 Get Report