Steven F Collins

US Patent:

6530539, Mar 11, 2003

Filed:

Feb 9, 2001

Appl. No.:

09/780828

Inventors:

Lee M. Goldman - Lexington MA
Steven R. Collins - Lexington MA
David B. James - Andover MA
David M. Blanchard - Tucson AZ
Steven Wirth - Oro Valley AZ

Assignee:

Raytheon Company - Lexington MA

International Classification:

F42B 1534

US Classification:

244 316, 244 315, 359845, 359894, 313 17, 313 22

Abstract:

An interceptor missile including an infrared radiation detection subsystem and a window assembly in the hull of the missile optically coupled to the infrared radiation detection subsystem. The window assembly includes an inner window, an outer window, and a support subsystem between the inner and the outer windows defining a plurality of infrared transparent fluid flow cooling channels between the inner and outer windows. A source of fluid coupled to the cooling channels for cooling the outer window without adversely affecting the optical properties of either window.

US Patent:

7615930, Nov 10, 2009

Filed:

Jun 26, 2006

Appl. No.:

11/474884

Inventors:

David M. Hrubowchak - Litchfield NH, US
Paul W. Oberlies - Manchester NH, US
Steven A. Collins - Lowell MA, US

Assignee:

Osram Sylvania Inc. - Danvers MA

International Classification:

H01J 1/62

US Classification:

313634, 313 25, 313493, 31331802

Abstract:

A low-wattage, high intensity arc discharge electric lamp () has a thick-walled outer envelope () extending along a longitudinal axis () and has a bulbous portion () and a narrow, cylindrical base () including oppositely disposed grooves () extending parallel to the longitudinal axis (). An electrically conductive mounting member () has grippers () formed on ends () thereof to engage the grooves (). The electrically conductive member () has a center portion () with a U-shaped segment () that is positioned within the base. An arc tube assembly () comprises an arc tube () having axially extending electrode lead-ins () sealed within a shroud (). The shroud () has parallel electrical connections () extending therefrom. A first of the electrical connections () is electrically and mechanically fixed to the U-shaped segment () of the electrically conductive mounting member () and a second of the electrical connections () is electrically insulated from the mounting member () by an insulator (). A threaded shell () is fixed to the base (), the shell () having a first electrical contact () electrically connected to the electrically conductive mounting member () and a second electrical contact () electrically connected to the second of the electrical connections ().

US Patent:

7709274, May 4, 2010

Filed:

May 30, 2007

Appl. No.:

11/806191

Inventors:

Steven R. Collins - Lexington MA, US
Abron S. Toure - Portland OR, US
Steven D. Bernstein - Brighton MA, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

H01L 21/00

US Classification:

438 3, 438722, 257E21305

Abstract:

A method for forming an RuOx electrode comprising depositing a TiW layer on an RuOx layer, forming a photo-resist mask on the TiW layer, in order to mask the TiW layer into a masked TiW layer, etching the masked TiW layer with a CF4 plasma, a TiW mask being formed on the RuOx layer, the CF4 plasma is not etching the RuOx and vaporizing unmasked RuOx portion of the RuOx layer with an oxygen plasma, the masked RuOx layer being formed into an RuOx electrode.

US Patent:

7839066, Nov 23, 2010

Filed:

Jan 14, 2005

Appl. No.:

11/036656

Inventors:

David Hrubowchak - Litchfield NH, US
Graham Wark - Stratham NH, US
Steven Collins - Lowell MA, US
Paul Oberlies - Manchester NH, US

Assignee:

Osram Sylvania Inc. - Danvers MA

International Classification:

H01J 5/48

US Classification:

313238, 313285

Abstract:

A discharge lamp has an axis with an arc tube having a hollow body containing an axially aligned arc generating and sustaining medium. The lamp electrodes and hollow body are arrayed along the axis. A sealed shroud surrounds the arc tube. The shroud and arc tube form an arc tube assembly. An envelope surrounds the arc tube assembly, and includes a base portion with a cylindrical part. Electrical lead-ins extend through the base portion and mechanically and electrically connect to the electrodes. A strengthening member for preventing the arc tube assembly from axial displacement as a result of forces applied substantially normal to the axis is provided. The strengthening member comprises an elongated element having first and second ends. The first end is formed to substantially engage the arc tube assembly, near an upper end, and the second end is formed to substantially engage the base portion.

US Patent:

7924547, Apr 12, 2011

Filed:

Sep 23, 2009

Appl. No.:

12/585733

Inventors:

Steven R. Collins - Lexington MA, US
Abron S. Toure - Portland OR, US
Steven D. Bernstein - Brighton MA, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

H01G 4/005
H01G 4/06

US Classification:

361303, 361311

Abstract:

A structure including a TiW oxygen plasma mask, a photoresist mask above and in contact with the TiW oxygen plasma mask, a 2000 angstrom thick oxygen plasma vaporizable RuOelectrode layer partially under and in contact with the TiW oxygen plasma mask, the RuOelectrode layer not being completely covered by a pattern of the TiW oxygen plasma mask, a first side of a PZT ferroelectric layer in contact with the RuOelectrode layer and a second RuOelectrode layer in contact with a second side of the PZT ferroelectric layer.

US Patent:

54436885, Aug 22, 1995

Filed:

Dec 2, 1993

Appl. No.:

8/161280

Inventors:

Abron S. Toure - Stoughton MA
Steven R. Collins - Lexington MA
Bruce W. LeBlanc - Manchester NH

Assignee:

Raytheon Company - Lexington MA

International Classification:

B44C 122
H01L 2170

US Classification:

216 13

Abstract:

A method of patterning a film of PZT material comprises the steps of providing a mask over a selected surface portion of the PZT material; and, plasma etching unmasked portions of the thin film material. The method includes the steps of: introducing a gas mixture of halogenated gases into a chamber; ionizing the gas mixture into a plasma in the chamber by imposition of an electric field across the introduced gaseous mixture, chemically reacting the ionized gaseous mixture, chemically reacting the unmasked portions of the lead zirconate titanate thin film material to selectively remove such exposed portion of the thin film material. The gas mixture is a mixture of a chloride and a compound of fluorine. Preferably the compound of fluorine is a halocarbon or fluorocarbon. In particular, the fluorocarbon is a trifluoromethane, CHF. sub.

US Patent:

D2805090, Sep 10, 1985

Filed:

Feb 9, 1983

Appl. No.:

6/465323

Inventors:

Jerry C. Marino - Sudbury MA
Steven W. Collins - Franklin MA

Assignee:

Prime Computer, Inc. - Natick MA

US Classification:

D14102

US Patent:

51462974, Sep 8, 1992

Filed:

Oct 25, 1991

Appl. No.:

7/783432

Inventors:

Steven R. Collins - Lexington MA
Robert B. Johnson - Marlborough MA

Assignee:

Raytheon Company - Lexington MA

International Classification:

H01L 2990

US Classification:

357 13

Abstract:

A precision voltage reference device having a forward biased and reverse biased silicon junctions arranged as a concentric circular annular monolithic structure is described. Selective hardening of the forward biased junction is provided to adjust carrier lifetime in said junction thereby providing a radiation hardened device. The selective hardening is provided by implanting non-dopant species to induce a predetermined amount of lattice damage at the forward biased junction. This arrangement permits both the forward biased junction and the reverse biased junction to be fabricated on a common substrate.