US3597884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boron resin cutoff and abrasive wheel
Assignee: General Dynamics Corp
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Filing: 1969-08-04
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Granted: 1971-08-10
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Expires: 1989-08-04
Abstract
Abstract A combination of materials and method of using them in the forming of extremely long wear life and breakage resistant abrasive tools such as cutoff and grinding wheels. This invention utilizes superindurate materials such as boron, boron nitrides or boron carbides as the incorporated abrasive material. The several methods for incorporation of these abrasive materials include lamination of filamentous tape containing the chosen abrasive and spinning or casting a tool of the desired shape from a resinous matrix containing fibers of the chosen abrasive.
Inventors
- 👤 William T Kaarlela
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:48
CPC Classifications
B; B24; B24D; B24D5/00; B24D5/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
64 words
A cutting and abrading tool comprising a tool body having a work face, said body comprising essentially a plurality of superimposed laminations of boron fiber resin tape and a supporting and tape-retaining material adhered thereto, said tape laminations oriented so that said boron fibers are at an angle substantially normal to said work face, said body having means for attachment to a motive source.
Claim 2
Dependent Claim
64 words
A cutting and abrading tool comprising a tool body having a work face, said body comprising essentially a plurality of superimposed laminations of boron fiber resin tape and a supporting and tape-retaining material adhered thereto, said tape laminations oriented so that said boron fibers are at an angle substantially normal to said work face, said body having means for attachment to a motive source.
Claim 3
Dependent Claim
21 words
The tool defined by claim 1 wherein said fiber consists of filaments of boron, boron nitride, boron carbide or combinations thereof.
Claim 4
Dependent Claim
24 words
The tool defined by claim 1 wherein said body comprises a blade having a work face defined by a substantially longitudinally extending planar surface.
Claim 5
Dependent Claim
30 words
The tool defined by claim 1 wherein said body is circular and adapted to abrade on rotational motion thereof, said work face defined by the periphery of said circular body.
Claim 6
Dependent Claim
24 words
The tool defined by claim 3 wherein the fiber orientation of said tape lamination is offset directionally from the prior tape lamination fiber orientation.
Claim 7
Dependent Claim
48 words
The tool defined by claim 4 wherein at least some of said boron fiber resin tape laminations comprise plural, segmented tape portions each of a length less than the radius of said tool and having nonparallel sides, said sides being substantially contiguous to the sides of adjacent segments.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |