Eric S Roach

US Patent:

6752085, Jun 22, 2004

Filed:

May 6, 2002

Appl. No.:

10/138300

Inventors:

Eric E. Roach - Orlando FL

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

F41A 900

US Classification:

102481

Abstract:

An apparatus for releasably attaching a closure plate to an open end of a cylindrical casing, the apparatus having an inner member; a threaded outer ring biased in tension, disposed adjacent to the inner member, for releasably engaging an interior wall of the casing; and a eutectic spacer between the inner member and the outer ring. At temperatures below the melting point of the eutectic spacer, the outer ring is held in threaded engagement with the casing, and holds the closure plate in position in abutment with the casing. When the temperature of the eutectic spacer reaches its melting temperature, the eutectic spacer transitions to a liquid state, flows away from the apparatus, allowing the outer ring to retract into a groove in the inner member, and the closure to be released from the casing.

US Patent:

20030033954, Feb 20, 2003

Filed:

Mar 30, 1999

Appl. No.:

09/280538

Inventors:

GEORGE W. BROOKS - ORLANDO FL, US
ERIC E. ROACH - ORLANDO FL, US

International Classification:

F41A009/00

US Classification:

102/481000

Abstract:

A warhead assembly includes a penetrating casing having a forward nose portion and an generally cylindrical aft portion opposite said nose portion. A closure ring is disposed in said aft portion, a vent also being provided in said aft portion. The warhead casing is filled with a predetermined level of explosive material. Preferably the explosive composition contain reduced amounts of explosive material and a strong oxidizer. The warhead assembly possesses superior penetration and blast performance, as well as superior Insensitive Munitions characteristics.

US Patent:

20150044041, Feb 12, 2015

Filed:

Oct 24, 2014

Appl. No.:

14/522648

Inventors:

- Orlando FL, US
Shivashankar Vinay Amatiganahally - Orlando FL, US
Eric L. Roach - Lexington NC, US
Todd F. Young - Fort Mill SC, US

International Classification:

F01D 9/02
B23P 6/00

US Classification:

4152081, 228256, 228119

Abstract:

A gas turbine vane containment cap is attached to an inboard surface of the vane inner shroud by penetrating flat weld filler, formed in a root gap between the cap and inner shroud. A semi-circular bead weld filler is formed outboard the penetrating weld filler closer to the vane exterior. Vane containment caps so welded are more resistant to in-service cracking along weldments.