US4464097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbomachinery rotor and method of manufacture
Assignee: Lockheed Martin Corp
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Filing: 1982-04-01
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Granted: 1984-08-07
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Expires: 2002-04-01
Abstract
Abstract A composite, single material, one-piece turbomachinery rotor constructed of fibers bonded in a matrix is disclosed together with a method of manufacture thereof.
Inventors
- 👤 Frederick E. Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:54
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/006; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/24; F; F01; F01D; F01D5/00; F01D5/12; F01D5/28; F01D5/282; F01D5/34; B29L; B29L2031/00; B29L2031/08; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
109 words
A turbomachinery rotor comprising a multi-stranded network of fibers having high tensile strength contained in and bonded by a matrix, said fibers and said matrix consisting of the same material respectively and being selected from the group consisting of carbon, quartz and alumina, said rotor including: (a) a disc portion wherein the fibers extend in substantially radial, axial, and circumferential directions, said axial and circumferential fibers being present substantially throughout said disc portion; and (b) a plurality of blade portions extending radially from the outer periphery of said disc portion, substantially all of said radial fibers of said disc portion extending beyond said outer periphery into said blade portions.
Claim 2
Dependent Claim
109 words
A turbomachinery rotor comprising a multi-stranded network of fibers having high tensile strength contained in and bonded by a matrix, said fibers and said matrix consisting of the same material respectively and being selected from the group consisting of carbon, quartz and alumina, said rotor including: (a) a disc portion wherein the fibers extend in substantially radial, axial, and circumferential directions, said axial and circumferential fibers being present substantially throughout said disc portion; and (b) a plurality of blade portions extending radially from the outer periphery of said disc portion, substantially all of said radial fibers of said disc portion extending beyond said outer periphery into said blade portions.
Claim 3
Dependent Claim
16 words
A turbomachinery rotor according to claim 1, wherein said blade portions further comprise axially extending fibers.
Claim 4
Dependent Claim
29 words
A turbomachinery rotor according to claim 1, wherein said radially extending fibers originate at the inner periphery of said disc portion defined by an axial hole in the latter.
Claim 5
Dependent Claim
24 words
A turbomachinery rotor according to claim 1, wherein the axial dimension of said disc portion decreases substantially continuously between said inner and outer peripheries.
Claim 6
Dependent Claim
135 words
A turbomachinery rotor comprising a multi-stranded network of fibers having high tensile strength at high temperature contained in and bonded by a matrix, said fibers and said matrix consisting of the same material respectively and being selected from the group consisting of carbon, quartz and alumina, said rotor including: (a) a disc portion wherein the fibers extend substantially in radial, axial, and circumferential directions; (b) a plurality of blade portions extending radially from the outer periphery of said disc portion; and (c) a shroud portion extending circumferentially about and interconnecting the outermost ends of said blade portions, the fibers of said shroud portion extending in radial, axial and circumferential directions, substantially all of said radial fibers in said disc portion extending beyond said outer periphery into said blade portions and further into said shroud portion.
Claim 7
Dependent Claim
135 words
A turbomachinery rotor comprising a multi-stranded network of fibers having high tensile strength at high temperature contained in and bonded by a matrix, said fibers and said matrix consisting of the same material respectively and being selected from the group consisting of carbon, quartz and alumina, said rotor including: (a) a disc portion wherein the fibers extend substantially in radial, axial, and circumferential directions; (b) a plurality of blade portions extending radially from the outer periphery of said disc portion; and (c) a shroud portion extending circumferentially about and interconnecting the outermost ends of said blade portions, the fibers of said shroud portion extending in radial, axial and circumferential directions, substantially all of said radial fibers in said disc portion extending beyond said outer periphery into said blade portions and further into said shroud portion.
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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) | 1987-08-07 | 1988-02-06 | 1988-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-07 | 1992-02-06 | 1992-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-07 | 1996-02-06 | 1996-08-07 | $7700.00 | Window Closed / Lapsed |