US4073096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of abrasive material
Assignee: US Industries Inc
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Filing: 1975-12-01
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Granted: 1978-02-14
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Expires: 1995-12-01
Abstract
Abstract Process for the manufacture of abrasive material in which (1) an abrasive mix is brought to fusion as in an electric arc furnace, (2) a relatively cold substrate is dipped into the molten material whereby a layer of solid abrasive material is quickly frozen (or plated) on the substrate, (3) the plated substrate is withdrawn from the molten material and (4) the solidified abrasive material is broken away from the substrate and collected for further processing to produce abrasive grain.
Inventors
- 👤 Herbert F. G. Ueltz
- 👤 Melvin A. Dashineau
- 👤 James J. Pino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:47
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/653; C09; C09K; C09K3/00; C09K3/14; C09K3/1409; C09K3/1427
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
71 words
A process for manufacturing abrasive material comprising a) melting an abrasive mix in a furnace, b) removably dipping a relatively cool object in the melted mix in the furnace for a controlled period of time whereby a portion of the mix solidifies on the object as abrasive material, c) withdrawing the entire object and solidified abrasive material from the melted mix, and d) removing the solidified abrasive material from the object.
Claim 2
Dependent Claim
71 words
A process for manufacturing abrasive material comprising a) melting an abrasive mix in a furnace, b) removably dipping a relatively cool object in the melted mix in the furnace for a controlled period of time whereby a portion of the mix solidifies on the object as abrasive material, c) withdrawing the entire object and solidified abrasive material from the melted mix, and d) removing the solidified abrasive material from the object.
Claim 3
Dependent Claim
29 words
The process of claim 1 wherein the object is dipped in and withdrawn from the melted mix by continuously conveying the object into and out of the melted mix.
Claim 4
Dependent Claim
38 words
The process of claim 1 wherein the object is dipped in and withdrawn from the melted mix by rotatably indexed immersing means which programmably advances, immerses, withdraws and advances the object into and out of the melted mix.
Claim 5
Dependent Claim
13 words
The process of claim 1 wherein the furnace is an electric arc furnace.
Claim 6
Dependent Claim
19 words
The process of claim 1 wherein the solidified abrasive material is removed from the object by impact shock means.
Claim 7
Dependent Claim
83 words
The process of claim 2 wherein the solidified abrasive material is removed from the object by conveying the object and abrasive material after withdrawal from the melted mix over roller means for realigning the object and material from a normally vertical to an inclined attitude and permitting the inclined object and material upon passage over said roller means to swing against and forcibly strike fixed block means, whereby the impact shock from such striking causes the material to break away from said object.
Claim 8
Dependent Claim
22 words
The process of claim 5 wherein the solidified abrasive material is removed from the object by manually striking the object and material.
Claim 9
Dependent Claim
20 words
The process of claim 5 further comprising the step of striking the object and material by automatic air-gun impacting means.
Claim 10
Dependent Claim
27 words
The process of claim 2 further comprising the step of cooling the object after the abrasive material is removed therefrom and before immersion in the melted mix.
Claim 11
Dependent Claim
21 words
The process of claim 9 wherein said cooling step comprises continuously conveying the object into and out of a cooling bath.
Claim 12
Dependent Claim
17 words
The process as claimed in claim 9 wherein said object is cooled by contacting a coolant liquid.
Claim 13
Dependent Claim
11 words
The process of claim 9 wherein said coolant fluid is water.
Claim 14
Dependent Claim
12 words
The process of claim 11 wherein said object is formed of steel.
Claim 15
Dependent Claim
22 words
The process of claim 13 wherein said object is withdrawn from the melted mix after being immersed for less than one minute.
Claim 16
Dependent Claim
14 words
The process of claim 14 wherein said abrasive mix contains an oxidic abrasive material.
Claim 17
Dependent Claim
16 words
The process of claim 15 wherein said oxidic abrasive material is Al 2 O 3 .
Claim 18
Dependent Claim
19 words
The process of claim 15 wherein said oxidic abrasive material is a mixture of aluminum oxide and zirconium oxide.
Claim 19
Dependent Claim
76 words
A process for manufacturing abrasive material comprising a) melting an abrasive mix containing aluminum oxide and zirconium oxide in a stationary electric arc furnace, b) dipping a relatively cool substrate material in the melted mix in the furnace for a predetermined time period to deposit a coating of solidified abrasive material on said substrate, c) withdrawing the entire substrate and the solidified coating from the melt, and d) removing the solidified abrasive material from the object.
Claim 20
Dependent Claim
76 words
A process for manufacturing abrasive material comprising a) melting an abrasive mix containing aluminum oxide and zirconium oxide in a stationary electric arc furnace, b) dipping a relatively cool substrate material in the melted mix in the furnace for a predetermined time period to deposit a coating of solidified abrasive material on said substrate, c) withdrawing the entire substrate and the solidified coating from the melt, and d) removing the solidified abrasive material from the object.
Claim 21
Dependent Claim
73 words
A process for manufacturing abrasive material comprising a) melting an abrasive mix containing aluminum oxide in a stationary electric arc furnace, b) dipping a relatively cool substrate material in the melted mix in the furnace for a predetermined time period to deposit a coating of solidified abrasive material on said substrate, c) withdrawing the entire substrate and the solidified coating from the melt, and e) removing the solidified abrasive material from the object.
Claim 22
Dependent Claim
73 words
A process for manufacturing abrasive material comprising a) melting an abrasive mix containing aluminum oxide in a stationary electric arc furnace, b) dipping a relatively cool substrate material in the melted mix in the furnace for a predetermined time period to deposit a coating of solidified abrasive material on said substrate, c) withdrawing the entire substrate and the solidified coating from the melt, and e) removing the solidified abrasive material from the object.
Claim 23
Dependent Claim
22 words
The process of claim 1 wherein the solidified abrasive is obtained as a plate-like deposit of predetermined thickness by controlling immersion time.
Claim 24
Dependent Claim
22 words
The process of claim 18 wherein the solidified abrasive is obtained as a plate-like deposit of predetermined thickness by controlling immersion time.
Claim 25
Dependent Claim
22 words
The process of claim 19 wherein the solidified abrasive is obtained as a plate-like deposit of predetermined thickness by controlling immersion time.
Claim 26
Dependent Claim
28 words
The method of claim 19 wherein a portion of said substrate material is immersed beneath the surface of said melted mix in the furnace during said dipping operation.
Claim 27
Dependent Claim
24 words
The process of claim 19 wherein all of said substrate material is immersed beneath the surface of said melted mix during said dipping step.
Claim 28
Dependent Claim
10 words
The process of claim 4 wherein the furnace is stationary.
Claim 29
Dependent Claim
18 words
The process of claim 19 wherein said object is a metal which is non-reactive with said melted mix.
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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) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |