Patrick L Conroy

US Patent:

55073069, Apr 16, 1996

Filed:

Dec 23, 1993

Appl. No.:

8/173578

Inventors:

Jeffrey D. Irvine - Whitehall MI
Jeffery S. Smith - Muskegon MI
Patrick L. Conroy - Montague MI

Assignee:

Howmet Corporation - Greenwich CT

International Classification:

B08B 302

US Classification:

134166R

Abstract:

A plurality of engine-run components are fixtured on a cleaning fluid manifold disposed in a cleaning chamber with the internal passage of each component communicated to a respective fluid spray nozzle on the cleaning fluid manifold, a heated caustic cleaning fluid is pumped to the manifold for flow through the nozzle and then the internal passage of each component for a time to remove the deposits, and the heated cleaning fluid is discharged from each component into the cleaning chamber.

US Patent:

56183534, Apr 8, 1997

Filed:

May 31, 1995

Appl. No.:

8/455343

Inventors:

Jeffrey D. Irvine - Whitehall MI
Jeffery S. Smith - Muskegon MI
Patrick L. Conroy - Montague MI

Assignee:

Howmet Corporation - Greenwich CT

International Classification:

B08B 900
B08B 308

US Classification:

134 2217

Abstract:

A plurality of engine-run components are fixtured on a cleaning fluid manifold disposed in a cleaning chamber with the internal passage of each component communicated to a respective fluid spray nozzle on the cleaning fluid manifold, a heated caustic cleaning fluid is pumped to the manifold for flow through the nozzle and then the internal passage of each component for a time to remove the deposits, and the heated cleaning fluid is discharged from each component into the cleaning chamber.

US Patent:

59133546, Jun 22, 1999

Filed:

Oct 7, 1997

Appl. No.:

8/946260

Inventors:

Patrick L. Conroy - Montague MI
Douglas W. Wilkinson - Whitehall MI

Assignee:

Howmet Research Corporation - Whitehall MI

International Classification:

B22D 2900
B08B 920
B08B 700
B08B 300

US Classification:

164131

Abstract:

Method for removing ceramic shell mold material from one or more castings in a relatively rapid manner wherein the casting and hot caustic solution spray nozzles are relatively moved to direct hot caustic solution under pressure at the castings to remove post-knock-out ceramic shell material thereon prior to further processing of the castings.

US Patent:

56785836, Oct 21, 1997

Filed:

May 22, 1995

Appl. No.:

8/445759

Inventors:

Patrick L. Conroy - Montague MI
Douglas W. Wilkinson - Whitehall MI

Assignee:

Howmet Research Corporation - Whitehall MI

International Classification:

B08B 302

US Classification:

134133

Abstract:

Method and apparatus for removing ceramic shell mold material from one or more castings in a relatively rapid manner wherein the casting and hot caustic solution spray nozzles are relatively moved to direct hot caustic solution under pressure at the castings to remove post-knock-out ceramic shell material thereon prior to further processing of the castings.