Norman Coleman Elfer

6401963, Jun 11, 2002

Oct 16, 1998

09/173602

Ellis C. Seal - Bay St. Louis MS
Norman C. Elfer - Pearl River LA
Torben Brandt - Burbank CA
Robert O. Edman - Torance CA

Lockheed Martin Corporation - Bethesda MD

B65H 8100

220586, 220589, 220590

An innovative technology for composite overwrapped pressure vessels (COPVs) has been developed which significantly increases cost effectiveness, increases reliability, and reduces weight over state-of-the-art COPVs. This technology combines an innovative thin liner made of a metal having a high modulus of elasticity and a high ductility, a high-performance composite overwrap and a high-performance film adhesive at the overwrap/liner interface. The metal liner can be fabricated from readily available titanium alloy sheet and plate using a combination of spin forming and machining to fabricate components and electron-beam welding for tank assembly. The composite overwrap is filament-wound onto an adhesive-covered titanium liner and the overwrap and adhesive are co-cured in an oven to yield an integrated tank structure.

RE38433, Feb 24, 2004

Oct 19, 2000

09/692833

Ellis C. Seal - Bay St. Louis MS
Norman C. Elfer - Pearl River LA
Torben Brandt - Burbank CA
Robert O. Edman - Torrance CA

Lockheed Martin Corporation - Bethesda MD

B65H 8100

294695, 156172, 220586

An innovative technology for composite overwrapped pressure vessels (COPVs) has been developed which significantly increases cost effectiveness, increases reliability, and reduces weight over state-of-the-art COPVs. This technology combines an innovative thin liner made of a metal having a high modulus of elasticity and a high ductility, a high-performance composite overwrap and a high-performance film adhesive at the overwrap/liner interface. The metal liner can be fabricated from readily available titanium alloy sheet and plate using a combination of spin forming and machining to fabricate components and electron-beam welding for tank assembly. The composite overwrap is filament-wound onto an adhesive-covered titanium liner and the overwrap and adhesive are co-cured in an oven to yield an integrated tank structure.

58228381, Oct 20, 1998

Jul 22, 1996

8/681147

Ellis C. Seal - Bay St. Louis MS
Norman C. Elfer - Pearl River LA

Lockheed Martin Corporation - Bethesda MD

B65H 8100
F17C 102
B23K 1500

294695

An innovative technology for composite overwrapped pressure vessels (COPVs) has been developed which significantly increases cost effectiveness, increases reliability, and reduces weight over state-of-the-art COPVs. This technology combines an innovative thin liner made of a metal having a high modulus of elasticity and a high ductility, a high-performance composite overwrap and a high-performance film adhesive at the overwrap/liner interface. The metal liner can be fabricated from readily available titanium alloy sheet and plate using a combination of spin forming and machining to fabricate components and electron-beam welding for tank assembly. The composite overwrap is filament-wound onto an adhesive-covered titanium liner and the overwrap and adhesive are co-cured in an oven to yield an integrated tank structure.