U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Encapsulated propellant grain composition, method of preparation, article fabricated therefrom and method of fabrication

Patent 5714711 Issued on February 3, 1998. Estimated Expiration Date: Icon_subject February 3, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3441518

3616759

3677010

3704184

3728172

3928230

Capsulated explosive compositions
Patent #: 3977922
Issued on: 08/31/1976
Inventor: Inoue ,   et al.

Propellant grain with alternating layers of encapsulated fuel and oxidizer
Patent #: 3995559
Issued on: 12/07/1976
Inventor: Bice ,   et al.

Spiral grain solid propellant fabrication process
Patent #: 4013743
Issued on: 03/22/1977
Inventor: Blasche, Jr. ,   et al.

Prilled explosive composition
Patent #: 4100000
Issued on: 07/11/1978
Inventor: Sterling ,   et al.

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Inventors

Assignee

Application

No. 636439 filed on 12/31/1990

US Classes:

102/291, Rocket propellent grain102/289, Having embedded reinforcing or burning control means149/2, STRUCTURE OR ARRANGEMENT OF COMPONENT OR PRODUCT149/5Component base contains an inorganic explosive or inorganic thermic constituent

Examiners

Primary: Nelson, Peter A.

Attorney, Agent or Firm

International Classes

C06D 005/06
C06B 045/30

Abstract

A propellant grain composition for use in solid fuel rocket engines comprises a first reactant component consisting of an oxidizer. A polymeric barrier coating encapsulates the first reactant component and a second reactant component comprising a reducer fuel reactable with the oxidizer is coated thereon, A final polymeric coating is placed over the entire propellant grain to yield a unitary metal fuel-oxidizer propellant grain structure for use as a solid rocket fuel.

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