Mark F Bartholomew

US Patent:

7708898, May 4, 2010

Filed:

Jul 27, 2006

Appl. No.:

11/494029

Inventors:

Mario P. Bochiechio - Vernon CT, US
Gary M. Tamiso - East Hartford CT, US
David R. Scott - Bristol CT, US
Mark F. Bartholomew - Enfield CT, US

International Classification:

B01D 37/00

US Classification:

210767, 210143, 210138, 210499

Abstract:

A system for removing particles from a slurry tank includes a filtering device and a controller. The filtering device collects and removes particles deposited within the slurry tank and the controller controls the placement and movement of the filtering device with respect to the slurry tank.

US Patent:

7866371, Jan 11, 2011

Filed:

Sep 12, 2007

Appl. No.:

11/853964

Inventors:

Timothy P. Hasselberg - Middletown CT, US
Lea D. Kennard - Vernon CT, US
Carl R. Verner - Windsor CT, US
Steven J. Bullied - Pomfret Center CT, US
Mark F. Bartholomew - Enfield CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B22C 7/02
B22D 9/04

US Classification:

164412, 164 35, 164 45, 164516

Abstract:

A method of forming a gating fixture for a lost wax casting process includes determining an optimal orientation of a gate in relation to a part, and forming a fixture that can repeatably be used to consistently locate the gate relative to the part. In one example, stereolithography is used to form the fixture.

US Patent:

8083511, Dec 27, 2011

Filed:

Dec 5, 2007

Appl. No.:

11/950726

Inventors:

Timothy P. Hasselberg - Middletown CT, US
Carl R. Verner - Windsor CT, US
Steven J. Bullied - Pomfret Center CT, US
Mark F. Bartholomew - Enfield CT, US

Assignee:

United Technologies Corp. - Hartford CT

International Classification:

B29C 33/00
B28B 17/00
B22C 9/00
B22C 7/00

US Classification:

425150, 425453, 425454, 425576, 425589, 164 35, 164 45, 264219

Abstract:

System and methods involving pattern molds are provided. In this regard, a representative system includes a mold assembly unit having a movable fixture holder operative to engage a portion of a pattern mold and position the pattern mold for assembly.

US Patent:

8240355, Aug 14, 2012

Filed:

Jan 29, 2010

Appl. No.:

12/696304

Inventors:

Steven J. Bullied - Pomfret Center CT, US
John Joseph Marcin - Marlborough CT, US
John F. Blondin - South Windsor CT, US
Mark F. Bartholomew - Enfield CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B22C 9/04
B22D 27/08

US Classification:

164 35, 164 711, 164114, 164516

Abstract:

A method of forming a cast component includes at least partially surrounding an investment mold in a heat-insulating packing material, feeding a molten alloy into the investment mold to provide a filled investment mold, and agitating the filled investment mold while solidifying the molten alloy.

US Patent:

8356655, Jan 22, 2013

Filed:

Feb 9, 2011

Appl. No.:

13/023607

Inventors:

Mario P. Bochiechio - Vernon CT, US
Mark F. Bartholomew - Enfield CT, US
Carl R. Verner - Windsor CT, US
John F. Blondin - South Windsor CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B22D 17/00
B22D 27/04

US Classification:

164312, 164348

Abstract:

A shot tube plunger of a die casting system includes a tip portion and a thermal control scheme at least partially disposed within the shot tube plunger. The thermal control scheme includes a fluid passageway having at least one coiled portion that receives a fluid to adjust a temperature of the shot tube plunger.

US Patent:

20070068649, Mar 29, 2007

Filed:

Sep 28, 2005

Appl. No.:

11/237322

Inventors:

Carl Verner - Windsor CT, US
Michael Turkington - Manchester CT, US
Mark Bartholomew - Enfield CT, US

International Classification:

B22C 9/04
B22D 33/04

US Classification:

164519000, 164137000, 164516000

Abstract:

A slurry is used to secure a metallic casting core to a ceramic casting core. The slurry may be introduced between the metallic and ceramic casting cores and hardened. The slurry may comprise zircon and aqueous colloidal silica.

US Patent:

20120111525, May 10, 2012

Filed:

Nov 5, 2010

Appl. No.:

12/940362

Inventors:

Mario P. Bochiechio - Vernon CT, US
Lea Kennard Castle - Vernon CT, US
Russell A. Beers - Manchester CT, US
Mark F. Bartholomew - Enfield CT, US
Douglas M. Berczik - Manchester CT, US

International Classification:

B22D 17/02

US Classification:

164113, 164303

Abstract:

A high temperature die casting system includes a die casting tool that has dies that are adapted for forming a component. The die casting tool is operable to heat and maintain a temperature of the dies above 500 F./260 C. At least a portion of the die casting tool that is exposed for contact with molten die casting material has a substrate and barrier coating on the substrate to protect from the molten die casting material.

US Patent:

20120211193, Aug 23, 2012

Filed:

Feb 18, 2011

Appl. No.:

13/030225

Inventors:

Mario P. Bochiechio - Vernon CT, US
John Joseph Marcin - Marlborough CT, US
Carl R. Verner - Windsor CT, US
John F. Blondin - South Windsor CT, US
Mark F. Bartholomew - Enfield CT, US
Raymond P. Ristau - South Windsor CT, US
Kevin W. Chittenden - Newington CT, US
Gary M. Tamiso - East Hartford CT, US
Robert C. Renaud - Southbridge MA, US
Dennis M. Kraemer - Coventry CT, US
Robert E. LeBrun - Southington CT, US
Paul R. Zamjohn - Saco ME, US
Charles A. Roohr - North Granby CT, US
Kerry Kozaczuk - West Hartford CT, US
Roy A. Garrison - Chaplin CT, US
Steven J. Bullied - Pomfret Center CT, US

International Classification:

B22D 17/00
B22D 27/15
B22D 27/02

US Classification:

164512, 164254

Abstract:

A die casting system includes a die, a shot tube, a melting system and a vacuum system. The die includes a plurality of die components that define a die cavity. The shot tube is in fluid communication with the die cavity and is operable to deliver a charge of material to the die cavity. The melting system is positioned adjacent to the die and includes an alloy loader, a melting unit and a crucible. The vacuum system defines a first chamber and a second chamber separated from the first chamber by an isolation valve. The melting system is disposed within the first chamber, and the die is disposed within the second chamber.