Elbert Watt Phones & Addresses
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708 Mechanic St, Alton, IL 62002
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Wood River, IL
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Brighton, IL
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Madison, IL
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East Alton, IL
Publications
Us Patents
Tank Arrangement Particularly Designed For Chemical Milling Operations
View pageUS Patent:
50153226, May 14, 1991
Filed:
Feb 23, 1990
Appl. No.:
7/483788
Inventors:
Bruce M. Griffin - St. Charles MO
Robert G. Werkema - St. Louis MO
Elbert D. Watt - Godfrey IL
Robert G. Werkema - St. Louis MO
Elbert D. Watt - Godfrey IL
Assignee:
McDonnell Douglas Corporation - Long Beach CA
International Classification:
B44C 122
C23F 100
C03C 1500
C03C 2506
C23F 100
C03C 1500
C03C 2506
US Classification:
156345
Abstract:
A tank arrangement particularly adapted for processing parts in chemical milling operations, especially for circulation of water-base maskant fluid. The system includes a tank containing up-flow and down-flow draft tubes, each containing a low speed, high volumetric displacement impeller which minimizes shear stresses imparted on the maskant liquid. The up-flow tube provides circulation and establishes rapid surface flow velocities to prevent congealing of maskant liquid and the down-flow tube provides localized circulation and produces a fluid elevation change. A weir is provided at the top of each of the draft tubes, the use of which combined with the low speed impellers break up and disperse entrained air. The draft tubes include baffle plates suitably located to prevent the formation of vortices above, within and below the tubes. Adjustable fluid flow deflector plates are provided adjacent to the lower ends of the draft tubes to eliminate "dead spots" in the tank work zone.
Welding Assembly
View pageUS Patent:
40177106, Apr 12, 1977
Filed:
Dec 6, 1974
Appl. No.:
5/530368
Inventors:
Elbert D. Watt - East Alton IL
Assignee:
ACF Industries, Incorporated - New York NY
International Classification:
B23K 912
US Classification:
219130
Abstract:
A welding assembly is provided wherein a nozzle body is pivoted about the weld head whereby the welding tip can be given fine adjustment by means of pivoting the nozzle body about the pivot point. A wire guide is provided which is quickly removable from the nozzle body for cleaning and/or replacing the wire guide. The welding tip, a tip adapter, and a tip nut may comprise a large mass of electrically conductive material. To obtain fine adjustment, the nozzle body, wire guide, welding tip, tip adapter and tip nut may be simultaneously pivoted about the weld head to move the welding tip relative to the work piece.