US3866792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral filament reinforced composite-rocket chamber/adapter
Assignee: Hercules LLC
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Filing: 1973-03-02
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Granted: 1975-02-18
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Expires: 1993-03-02
Abstract
Abstract The invention is a high pressure, lightweight integral filament reinforced composite chamber/adapter. The polar opening of a helically wound chamber is integrally reinforced by means of a plurality of mats formed of a high modulus filament. The mats are interspersed between the normal helical windings proximate the polar opening to form a dimensionally stable adapter surface for the attachment of chamber accessories.
Inventors
- 👤 Charles M Minke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:14
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; B29C53/602; B29C53/605; F; F02; F02K; F02K9/00; F02K9/08; F02K9/32; F02K9/34; F17; F17C; F17C1/00; F17C1/16; B29L; B29L2031/00; B29L2031/712; B29L2031/7154; B29L2031/7156; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0609; F17C2203/0634; F17C2203/0658; F17C2203/0663; F17C2209/00; F17C2209/21; F17C2209/2154; F17C2260/00; F17C2260/01; F17C2260/012; Y; Y10; Y10S; Y10S273/00; Y10S273/07; Y10S273/23; Y10S60/00; Y10S60/909
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
143 words
A lightweight, high pressure, integral filament reinforced composite chamber/adapter comprising: a. a filament wound chamber having an interior cavity, an exterior surface, and at least one polar opening extending from the interior cavity to the exterior surface of said chamber, said chamber comprising helical windings of glass filament, and b. a filament reinforced composite adapter integral with said chamber, said adapter comprising a plurality of mats interspaced between the helical windings of glass, said mats comprising a plurality of spirally hoop wound high modulus filaments faced with glass fiber tapes extending radially outwardly from said polar opening, said filaments having a modulus of elasticity of at least 20 X 106 pounds per square inch, said spirally hoop wound filaments extending outwardly from said polar opening, said glass filament windings and said mats providing a dimensionally stable adapter surface for attachment of chamber accessories.
Claim 2
Dependent Claim
143 words
A lightweight, high pressure, integral filament reinforced composite chamber/adapter comprising: a. a filament wound chamber having an interior cavity, an exterior surface, and at least one polar opening extending from the interior cavity to the exterior surface of said chamber, said chamber comprising helical windings of glass filament, and b. a filament reinforced composite adapter integral with said chamber, said adapter comprising a plurality of mats interspaced between the helical windings of glass, said mats comprising a plurality of spirally hoop wound high modulus filaments faced with glass fiber tapes extending radially outwardly from said polar opening, said filaments having a modulus of elasticity of at least 20 X 106 pounds per square inch, said spirally hoop wound filaments extending outwardly from said polar opening, said glass filament windings and said mats providing a dimensionally stable adapter surface for attachment of chamber accessories.
Claim 3
Dependent Claim
122 words
A lightweight, high pressure, integral filament reinforced composite chamber/adapter comprising: a. a filament wound chamber having an interior cavity, an exterior surface, and at least one polar opening extending from the interior cavity to said exterior surface of said chamber, said chamber comprising helical windings of glass filaments, and b. a filament reinforced composite adapter integral with said chamber, said adapter comprising a plurality of graphite fiber mats extending around said polar opening, and interspaced between said helical windings of glass, said graphite fiber mat comprising a plurality of discrete overlapping graphite fiber tapes, said glass windings and said graphite fiber mats interspaced between said windings comprising the adapter and providing a dimensionally stable adapter surface for the attachment of chamber accessories.
Claim 4
Dependent Claim
122 words
A lightweight, high pressure, integral filament reinforced composite chamber/adapter comprising: a. a filament wound chamber having an interior cavity, an exterior surface, and at least one polar opening extending from the interior cavity to said exterior surface of said chamber, said chamber comprising helical windings of glass filaments, and b. a filament reinforced composite adapter integral with said chamber, said adapter comprising a plurality of graphite fiber mats extending around said polar opening, and interspaced between said helical windings of glass, said graphite fiber mat comprising a plurality of discrete overlapping graphite fiber tapes, said glass windings and said graphite fiber mats interspaced between said windings comprising the adapter and providing a dimensionally stable adapter surface for the attachment of chamber accessories.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |