Patent US3886926A successfully refreshed from Google Patents.
US3886926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire saw
Assignee: Individual
•
Filing: 1973-07-19
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Granted: 1975-06-03
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Expires: 1993-07-19
Abstract
Abstract A cutting tool is disclosed comprising a plurality of blocks of composite, comminuted abrasive in a bonding matrix, connected to a metallic substrate by a braze comprising a layer of an elastically pliant metal having high thermal conductivity sandwiched between a metallic material which has a melting point below the melting point of both the matrix and the metallic substrate. The tool may be formed into a band saw and is especially useful for cutting large blocks of minerals such as granite.
Inventors
- 👤 George H Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:24
CPC Classifications
B; B23; B23D; B23D61/00; B23D61/18; B23D61/185
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
87 words
A wire saw comprising, in combination; an elongated, flexible, substantially cylindrical, metallic body having at least one helical slot along its length, and a plurality of blocks of composite, comminuted abrasive in a bonding matrix mounted in said slot in spaced apart relation along said body by a braze comprising a layer of an elastically pliant metal having high thermal conductivity bonded to both said body and blocks by a metallic material which has a melting point below the melting point of both said matrix and body.
Claim 2
Dependent Claim
87 words
A wire saw comprising, in combination; an elongated, flexible, substantially cylindrical, metallic body having at least one helical slot along its length, and a plurality of blocks of composite, comminuted abrasive in a bonding matrix mounted in said slot in spaced apart relation along said body by a braze comprising a layer of an elastically pliant metal having high thermal conductivity bonded to both said body and blocks by a metallic material which has a melting point below the melting point of both said matrix and body.
Claim 3
Dependent Claim
87 words
A wire saw comprising, in combination; an elongated, flexible, substantially cylindrical, metallic body having at least one helical slot along its length, and a plurality of blocks of composite, comminuted abrasive in a bonding matrix mounted in said slot in spaced apart relation along said body by a braze comprising a layer of an elastically pliant metal having high thermal conductivity bonded to both said body and blocks by a metallic material which has a melting point below the melting point of both said matrix and body.
Claim 4
Dependent Claim
87 words
A wire saw comprising, in combination; an elongated, flexible, substantially cylindrical, metallic body having at least one helical slot along its length, and a plurality of blocks of composite, comminuted abrasive in a bonding matrix mounted in said slot in spaced apart relation along said body by a braze comprising a layer of an elastically pliant metal having high thermal conductivity bonded to both said body and blocks by a metallic material which has a melting point below the melting point of both said matrix and body.
Claim 5
Dependent Claim
18 words
A tool as defined in claim 1 wherein said body is in the form of an endless loop.
Claim 6
Dependent Claim
12 words
A tool as defined in claim 1 wherein said abrasive is diamond.
Claim 7
Dependent Claim
17 words
A tool as defined in claim 1 wherein the major proportion of said pliant metal is copper.
Claim 8
Dependent Claim
17 words
A tool as defined in claim 1 wherein the major proportion of said metallic material is silver.
Claim 9
Dependent Claim
82 words
A wire saw comprising in combination an endless loop of flexible wire supported in tension between at least two sheaves, the surface of said wire having at least one helical groove therein extending along said wire, and a plurality of cutting elements comprising composites of comminuted abrasive in a metallic matrix disposed in said groove in spaced apart relation along said wire, and bonded to the surface of said wire, and means for driving at least one of said sheaves in rotation.
Claim 10
Dependent Claim
82 words
A wire saw comprising in combination an endless loop of flexible wire supported in tension between at least two sheaves, the surface of said wire having at least one helical groove therein extending along said wire, and a plurality of cutting elements comprising composites of comminuted abrasive in a metallic matrix disposed in said groove in spaced apart relation along said wire, and bonded to the surface of said wire, and means for driving at least one of said sheaves in rotation.
References Cited (Backward Citations)
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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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |