Richard W Varsell

6627833, Sep 30, 2003

Jan 30, 2002

10/060764

Richard W. Varsell - Bristol CT
Donald Joseph Voisine - Terryville CT

United Technologies Corporation - Hartford CT

B23H 100

219 6911, 269152

A fixture for securing a workpiece, which includes: a base; a plurality of locators on the base for accepting the workpiece; a plurality of arms, each secured to the base at a pivot point; and a lever for actuating the arms against the workpiece. The arms positively position the workpiece against the locators. The fixture is part of an electrical discharge machining (EDM) apparatus, which also includes a tank and a holder for supporting an electrode in said tank. The lever actuates towards a front of the tank.

7024787, Apr 11, 2006

Jul 23, 2004

10/898694

Richard W. Varsell - Bristol CT, US
Jesse R. Boyer - Berlin CT, US
Dorel M. Moisei - West Hartford CT, US
James M. Koonankeil - Marlborough CT, US
Lukas A. Rubino - Baltimore MD, US

United Technologies Corporation - Hartford CT

G01B 3/14

33562, 33547

A template for evaluating a part, comprising: a surface having a shape corresponding to the part; and at least one element on the surface corresponding to a desired location of a feature on the part. A method of evaluating a part, comprising the steps of: providing a template having a shape corresponding to the part and at least one element thereon corresponding to a desired location on the part; associating the template with the part; and using the element to determine whether the feature is at the desired location.

7291800, Nov 6, 2007

Feb 23, 2006

11/360234

Richard Varsell - Bristol CT, US
James M. Koonankeil - Marlborough CT, US

United Technologies Corporation - Hartford CT

B23H 7/26

219 6915

An electrical discharge machining assembly has a fixture that retains an electrode. The fixture has clamps to apply a clamping force to the electrode. A threaded member adjusts the compression of a spring to change the clamping force for each clamp. For each clamp, the spring applies a force to a clamp lever pivotably attached to the fixture. Pivoting of the clamp lever moves a lower portion of each clamp lever closer to the fixture clamping the electrode to the fixture body. A clamp release is located proximate to the fixture to rotate the clamp levers in an opposite direction releasing the clamping pressure and the electrode.

7311783, Dec 25, 2007

Aug 9, 2004

10/914904

Steven M. Burns - West Hartford CT, US
Richard W. Varsell - Bristol CT, US

United Technologies Corporation - Hartford CT

H01L 21/285
C23C 16/00
C23C 14/50

118726, 118730, 118725, 118728

The present invention relates to an apparatus for coating one or more workpieces such as components to be used in jet engines or industrial turbines. The apparatus comprises a device for simultaneously manipulating a workpiece about multiple axes while holding a center of the workpiece at a fixed position with respect to a source of coating material. The device for manipulating the workpiece preferably comprises a modular fixture while allows the workpiece to be simultaneously rotated about a first axis, rotated about a second axis at an angle to the first axis, and titled through a range of motion such as from +45 degrees to −45 degrees with respect to the first axis.

7754016, Jul 13, 2010

Oct 7, 2002

10/266052

Steven M. Burns - West Hartford CT, US
Richard W. Varsell - Bristol CT, US

United Technologies Corporation - Hartford CT

H01L 21/00
C23C 16/00
C23C 14/00

118728, 118725, 118730, 118726

The present invention relates to an apparatus for coating one or more workpieces such as components to be used in jet engines or industrial turbines. The apparatus comprises a device for simultaneously manipulating a workpiece about multiple axes while holding a center of the workpiece at a fixed position with respect to a source of coating material. The device for manipulating the workpiece preferably comprises a modular fixture while allows the workpiece to be simultaneously rotated about a first axis, rotated about a second axis at an angle to the first axis, and titled through a range of motion such as from +45 degrees to −45 degrees with respect to the first axis.

8534122, Sep 17, 2013

Dec 27, 2011

13/337525

Sergey Mironets - Norfolk CT, US
Thomas R. Davis - Yalesville CT, US
Richard Varsell - Bristol CT, US
Edward Pietraszkiewicz - Southington CT, US

United Technologies Corporation - Hartford CT

G01M 15/14

7311201

A system for airflow testing a turbine engine component having multiple cavities has a test fixture with a module for supporting a turbine engine component to be tested and a sliding element for sequentially allowing a pressurized fluid to flow through each of the multiple cavities in the turbine engine component. A method for performing the airflow testing is also described.

5997947, Dec 7, 1999

Apr 29, 1998

9/067767

Steven M. Burns - Waterbury CT
Richard W. Varsell - Bristol CT

United Technologies Corporation - Hartford CT

B05D 312

427240

The present invention relates to a modular, rotisserie type coating fixture for use in electronic beam physical vapor deposition (EB-PVD) coating processes. The fixture includes a support structure which rotates about a first axis during coating and a plurality of cassettes mounted within the support structure. The cassettes each hold a plurality of workpieces to be coated and are mounted in the support structure so that they rotate about axes parallel to the first axis. This allows each workpiece being coated to rotate about its longitudinal axis and to achieve an evenly distributed, substantially uniform coating on surfaces of the workpiece to be coated.

58493590, Dec 15, 1998

Jul 17, 1997

8/895980

Steven M. Burns - Waterbury CT
Richard William Varsell - Bristol CT

United Technologies Corporation - Hartford CT

B05D 312
B05C 1102
B05C 1302

427242

The present invention relates to an apparatus for simultaneously coating a plurality of workpieces. The apparatus includes a modular fixture having a plurality of bushing and spindle arrangements for supporting the workpieces to be coated. The bushing and spindle arrangements allow each workpiece to rotate about its longitudinal axis. They further allow each workpiece to assume a first position where it is tilted towards a source of coating material during a first portion of the coating cycle and a second position substantially parallel to the source of coating material during a second portion of the coating cycle. By providing the novel bushing and spindle arrangement of the present invention, it is possible to coat surfaces of the workpiece which are substantially perpendicular to other surfaces of the workpiece and still obtain a substantially uniform coating along the other surfaces of the workpiece. A process for simultaneously coating the workpieces is also described. The process broadly comprises the steps of providing a source of coating material, attaching a workpiece to be coated to a fixture, and coating the workpiece with a coating material by rotating the fixture and thereby causing the workpiece to be tilted towards the source of coating material during a first portion of the coating cycle and to be substantially parallel to the source of coating material during a second portion of the coating cycle.