US3663191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diamond tool and method of making the same
Assignee: Dentsply Sirona Inc
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Filing: 1970-07-23
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Granted: 1972-05-16
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Expires: 1990-07-23
Abstract
Abstract A grinding and cutting tool comprised of diamond particles bonded to a support base member by the process of vapor deposition to form a metal lattice matrix chemically bonded to a surface of the diamond particles and metallurgically bonded to the support base member and the diamonds bonded to each other by inosculation, the reactions greatly enhancing the strength of the bonds. A novel method of vapor deposition, controlled by electrical charges and by said means to impart kinetic energy to the ions of the vapor of sufficient velocity to cause penetration of said ions into the molecular structure of the support base causing a metallurgical reaction and into the molecular structure of the diamond surfaces causing a chemical reaction. In addition, by inducing a secondary electrical field, divergence of said ions can be controlled to cause said ions to be deposited in a predetermined pattern.
Inventors
- 👤 Ernest A Kroder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:09
CPC Classifications
C; C23; C23C; C23C30/00; B; B24; B24D; B24D18/00; B24D3/00; B24D3/02; B24D3/04; B24D3/06; B24D3/08; B24D5/00; C23C14/00; C23C14/22; C23C14/24; C23C14/32; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12486; Y10T428/12493; Y10T428/12535; Y10T428/12625; Y10T428/12687; Y10T428/12694; Y10T428/12736; Y10T428/12743; Y10T428/1275; Y10T428/12771; Y10T428/12778
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
65 words
The method according to claim 1 including the further step of controlling the depth of penetration of said metallic matrix ions to produce a coating layer thereof on said diamond particles which is sufficiently thin to form a lattice-like surface configuration providing recesses between at least a substantial number of adjacent diamond particles to accommodate material cut or ground from a workpiece until projected therefrom.
Claim 2
Dependent Claim
39 words
The method according to claim 1 including the further step of discontinuing the projection of said metallic matrix ions against the surfaces of said diamond particles after said carbide has been formed upon the surfaces of said diamond particles.
Claim 3
Dependent Claim
92 words
The method according to claim 1 further including the steps of forming said metallic matrix ions into a stream and oscillating said stream in successive paths transversely across the surfaces of said diamond particles and support base while moving said support base in a direction transverse to said paths to deposit a series of adjoining stripes of said metallic matrix ions upon said surface of said support base and the diamond particles adhered thereto to effect said union oF said diamond particles with each other and said surface of said support base.
Claim 4
Dependent Claim
52 words
The method according to claim 4 including the further step of imposing an electrical potential between the source of matrix ions and said support base to attract the ions of said metallic matrix positively to said support base for deposit of said metallic matrix ions upon said base and diamond particles thereon.
Claim 5
Dependent Claim
99 words
The method according to claim 1 including the additional step of imposing an electrical potential between said source of metallic matrix vapor and support base, said potential being of sufficient strength to effect a thermionic emission of ions of said metallic matrix and attracting said ions positively to said support base to effect at least molecular penetration of said surface of said support base and said diamond particles by said ions to effect said chemical and metallurgical reactions therewith and provide said firm bond between said matrix material and said surface of said support base and said diamond particles.
Claim 6
Dependent Claim
52 words
The method according to claim 1 further including the steps of forming said metallic matrix ions into a beam-like stream, and directing and focusing said stream in a predetermined moving path to deposit said matrix ions in a predetermined configuration pattern upon the surfaces of said support base and diamond particles thereon.
Claim 7
Dependent Claim
22 words
The method according to claim 7 in which said moving path comprises a series of oscillations in successive parallel and opposite directions.
Claim 8
Dependent Claim
36 words
The method according to claim 8 including the further step of moving said support member and diamond particles thereon in a predetermined path to distribute said configuration of ions thereon to form an overall desired pattern.
Claim 9
Dependent Claim
63 words
The method according to claim 1 including the further step of continuing to project said metallic matrix ions upon the carbide layer formed upon the surfaces of the diamond particles and upon the surface of the alloy layer upon said support base to strengthen said carbide and alloy bonds and thereby better enable the abrading and cutting tool to effectively withstand use thereof.
Claim 10
Dependent Claim
104 words
The process according to claim 1 including the further step of vaporizing to ionic state a metal softer than the matrix metal of high tensile strength selected from the group consisting of aluminum, copper, lead, tin and zinc and projecting said softer metal ions against said matrix metal of higher tensile strength at a velocity adequate to penetrate the outer surfaces of said matrix sufficiently to form a metallurgical bond therewith by inosculation and thereby connect said diamond particles to each other with at least limited yieldability at the localities where said outermost layers of softer metal contact each other on adjacent diamond particles.
Claim 11
Dependent Claim
70 words
The process according to claim 11 including the further step of projecting said softer metal ions against the support base for said diamond particles at a velocity adequate to penetrate the outer surface thereof sufficiently to form a metallurgical bond by inosculation therewith and thereby also connect said diamond particles to said support base with at least limited yieldability at the localities where said diamond particles contact said support base.
Claim 12
Dependent Claim
11 words
An abrading and cutting tool formed by the method of claim
Claim 13
Dependent Claim
12 words
An abrading and cutting tool formed by the method of claim 11.
References Cited (Backward Citations)
US3248189A
Cited
US3293012A
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US3306720A
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US3378361A
Cited
US3464804A
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US3508890A
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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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |