US3245782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal dispersions
Assignee: Dresser Products Inc
•
Filing: 1962-04-06
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Granted: 1966-04-12
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Expires: 1982-04-06
Abstract
No abstract record available.
Inventors
- 👤 William E Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:16
CPC Classifications
G; G21; G21C; G21C21/00; G21C21/18; C; C22; C22C; C22C1/00; C22C1/10; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
132 words
THE METHOD OF MAKING A STRUCTURAL METAL ARTICLE COMPRISING THE STEPS OF: (A) UNIFORMLY BLENDING A FINELY DIVIDED MATRIX METAL AND FINELY DIVIDED METAL OXIDE PARTICLES, (1) SAID METAL OXIDE PARTICLES HAVING A CRUSHING STRENGTH GREATER THAN THE PRESSURE REQUIRED TO BIND TOGETHER SAID MATRIX METAL, (B) COMPRESSING SAID BLEND OF FINELY DIVIDED METAL AND METAL OXIDE TO BIND SAID MATRIX METAL TOGETHER WITHOUT CRUSHING SAID METAL OXIDE PARTICLES, (1) THE METAL OXIDE PARTICLES SUBSTANTIALLY RETAINING THEIR GENERAL SHAPE DURING COMPRESSION, (C) SINTERING SAID COMPRESSED BLEND TO FORM A COHERENT ARTICLE, (D) TREATING SAID COHERENT ARTICLE WITH A CHEMICAL AGENT WHICH REMOVES THE METAL OXIDE PARTICLES ON THE SURFACE OF THE ARTICLE, BUT WHICH DOES NOT SUBSTANTIALLY AFFECT SAID MATRIX METAL, AND THEN (E) REMOVING SAID TREATING AGENT FROM THE ARTICLE SURFACE.
Claim 2
Independent Claim
132 words
THE METHOD OF MAKING A STRUCTURAL METAL ARTICLE COMPRISING THE STEPS OF: (A) UNIFORMLY BLENDING A FINELY DIVIDED MATRIX METAL AND FINELY DIVIDED METAL OXIDE PARTICLES, (1) SAID METAL OXIDE PARTICLES HAVING A CRUSHING STRENGTH GREATER THAN THE PRESSURE REQUIRED TO BIND TOGETHER SAID MATRIX METAL, (B) COMPRESSING SAID BLEND OF FINELY DIVIDED METAL AND METAL OXIDE TO BIND SAID MATRIX METAL TOGETHER WITHOUT CRUSHING SAID METAL OXIDE PARTICLES, (1) THE METAL OXIDE PARTICLES SUBSTANTIALLY RETAINING THEIR GENERAL SHAPE DURING COMPRESSION, (C) SINTERING SAID COMPRESSED BLEND TO FORM A COHERENT ARTICLE, (D) TREATING SAID COHERENT ARTICLE WITH A CHEMICAL AGENT WHICH REMOVES THE METAL OXIDE PARTICLES ON THE SURFACE OF THE ARTICLE, BUT WHICH DOES NOT SUBSTANTIALLY AFFECT SAID MATRIX METAL, AND THEN (E) REMOVING SAID TREATING AGENT FROM THE ARTICLE SURFACE.
Claim 3
Independent Claim
126 words
THE METHOD OF MAKING A CONTROL ROD FOR A NUCLEAR REACTOR COMPRISING THE STEPS OF: (A) UNIFORMLY BLENDING A FINELY DIVIDED MATRIX METAL AND A FINELY DIVIDED COMPOUND SELECTED FROM THE GROUP CONSISTING OF INORGANIC COMPOUNDS OF DYSPROSIUM, EUROPIUM, SAMARIUM, GADOLINIUM, BORON, AND CADMIUM, SAID COMPOUND HAVING A GREATER CRUSHING STRENGTH THAN THE PRESSURE REQUIRED TO BIND SAID MATRIX METAL TOGETHER, (B) COMPRESSING SAID BLEND TO BIND SAID MATRIX METAL TOGETHER WITHOUT CRUSHING SAID FINELY DIVIDED COMPOUND THEREIN, (C) SINTERING SAID COMPRESSED BLEND TO FORM A COHERENT ROD, (D) TREATING SAID COMPRESSED COHERENT ROD WITH AN AGENT WHICH REMOVES THE SURFACE COMPOUND BUT WHICH DOES NOT SUBSTANTIALLY AFFECT SAID MATRIX METAL, (E) REMOVING SAID TREATING AGENT, AND THEN (F) CLADDING SAID ROD WITH A PROTECTIVE SHEATHING.
Claim 4
Independent Claim
126 words
THE METHOD OF MAKING A CONTROL ROD FOR A NUCLEAR REACTOR COMPRISING THE STEPS OF: (A) UNIFORMLY BLENDING A FINELY DIVIDED MATRIX METAL AND A FINELY DIVIDED COMPOUND SELECTED FROM THE GROUP CONSISTING OF INORGANIC COMPOUNDS OF DYSPROSIUM, EUROPIUM, SAMARIUM, GADOLINIUM, BORON, AND CADMIUM, SAID COMPOUND HAVING A GREATER CRUSHING STRENGTH THAN THE PRESSURE REQUIRED TO BIND SAID MATRIX METAL TOGETHER, (B) COMPRESSING SAID BLEND TO BIND SAID MATRIX METAL TOGETHER WITHOUT CRUSHING SAID FINELY DIVIDED COMPOUND THEREIN, (C) SINTERING SAID COMPRESSED BLEND TO FORM A COHERENT ROD, (D) TREATING SAID COMPRESSED COHERENT ROD WITH AN AGENT WHICH REMOVES THE SURFACE COMPOUND BUT WHICH DOES NOT SUBSTANTIALLY AFFECT SAID MATRIX METAL, (E) REMOVING SAID TREATING AGENT, AND THEN (F) CLADDING SAID ROD WITH A PROTECTIVE SHEATHING.
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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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |