Mark Bartholomew

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:

20130146266, Jun 13, 2013

Filed:

Dec 14, 2012

Appl. No.:

13/714462

Inventors:

UNITED TECHNOLOGIES CORPORATION - Hartford 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 17/20

US Classification:

165168

Abstract:

A method for controlling a temperature of a portion of a die casting system having a shot tube plunger, according to an exemplary aspect of the present disclosure includes, among other things, communicating a fluid through a fluid inlet of a fluid passageway of a thermal control scheme of the shot tube plunger. The fluid circulates through the fluid passageway of the thermal control scheme to selectively adjust a temperature of the shot tube plunger. The fluid is discharged through a fluid outlet of the fluid passageway.

US Patent:

40915360, May 30, 1978

Filed:

Jan 10, 1977

Appl. No.:

5/757997

Inventors:

Mark R. Bartholomew - Panorama City CA

International Classification:

A01D 3526
A01G 306

US Classification:

30276

Abstract:

A rotary cutting device primarily used for the cutting of vegetation and which includes an outer housing having a motor mounted within the housing. A bobbin assembly which stores a selected amount of a filament permits dispensing of the filament through a hollow drive shaft which is rotated by the motor. The lower end of the filament serves as a rotating cutting element. The bobbin assembly is capable of being shifted axially with respect to the drive shaft in order to dispense a selected amount of the filament when shifted to a lower position and which also prevents locking action of the filament against unauthorized withdrawal when the bobbin assembly is normally biased to its upper position. The rotary cutting device also includes an outwardly flaring lower skirt section which is provided with a recess having a balancing element such as a liquid or semi-liquid material contained therein for balance against both static and dynamic imbalance created by the rotary action.

US Patent:

20160158835, Jun 9, 2016

Filed:

Feb 10, 2016

Appl. No.:

15/040037

Inventors:

- Farmington 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 - Oxford AL, 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 25/02
B22D 17/22
B22D 17/20
B22D 29/00
B22D 17/14

Abstract:

A method of manufacturing a component in a die casting cell that includes a die casting system according to an exemplary aspect of the present disclosure includes, among other things, isolating a first chamber from a second chamber of the die casting system, melting a charge of material in the first chamber, sealing the second chamber relative to the first chamber, and simultaneously injecting the charge of material within the second chamber to cast the component and melting a second charge of material within the first chamber.

US Patent:

20150060002, Mar 5, 2015

Filed:

Nov 10, 2014

Appl. No.:

14/536950

Inventors:

- Hartford 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 - Oxford AL, 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 17/02
B22D 25/02
B22D 17/22
B22D 29/00
B22D 17/14
B22D 17/20

US Classification:

164 41, 164113, 164494, 164 61, 164 691

Abstract:

A method of manufacturing a component in a die casting cell that includes a die casting system according to an exemplary aspect of the present disclosure includes, among other things, isolating a first chamber from a second chamber of the die casting system, melting a charge of material in the first chamber, sealing the second chamber relative to the first chamber, and simultaneously injecting the charge of material within the second chamber to cast the component and melting a second charge of material within the first chamber.