US4519732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the machining of composite materials
Assignee: RTX Corp
•
Filing: 1983-12-09
•
Granted: 1985-05-28
•
Expires: 2003-12-09
Abstract
Abstract In the machining of composite material, improved rates of material removal and reduced machine tool wear are achieved by a cutting fluid comprising the binder of said composite in an uncured state.
Inventors
- 👤 John W. Sutcliffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:50
CPC Classifications
B; B23; B23B; B23B35/00; B23Q; B23Q11/00; B23Q11/10; B23Q11/1038; B23Q11/1061; H; H05; H05K; H05K3/00; H05K3/0011; H05K3/0044; H05K3/0047; H05K2203/00; H05K2203/01; H05K2203/0104; H05K2203/0126; H05K2203/12; H05K2203/127; Y; Y10; Y10T; Y10T407/00; Y10T407/14; Y10T408/00; Y10T408/03; Y10T408/44; Y10T408/46; Y10T82/00; Y10T82/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
62 words
In a process of machining a composite by a machine tool, said composite comprising a disposition of fibrous material within a matrix of cured binder material, the improvement characterized by: lubricating said machine tool with a fluid comprising said binder material in an uncured state for reducing tool wear and enhancing the rate of removal of said composite material by said tool.
Claim 2
Dependent Claim
62 words
In a process of machining a composite by a machine tool, said composite comprising a disposition of fibrous material within a matrix of cured binder material, the improvement characterized by: lubricating said machine tool with a fluid comprising said binder material in an uncured state for reducing tool wear and enhancing the rate of removal of said composite material by said tool.
Claim 3
Dependent Claim
23 words
The process of claim 1 characterized by said process comprising the reaming of said composite material and said machine tool comprising a reamer.
Claim 4
Dependent Claim
14 words
The process of claim 1 characterized by said binder material comprising an epoxy resin.
Claim 5
Dependent Claim
14 words
The process of claim 1 characterized by said binder material comprising a polyester resin.
Claim 6
Dependent Claim
14 words
The process of claim 1 characterized by said binder material comprising a polyimide resin.
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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) | 1988-05-27 | 1988-11-26 | 1989-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-27 | 1992-11-26 | 1993-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-27 | 1996-11-26 | 1997-05-28 | $7700.00 | Window Closed / Lapsed |