US3167447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon body treatment
Assignee: Individual
•
Filing: 1961-08-18
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Granted: 1965-01-26
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Expires: 1981-08-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Geoffrey R Tully
- 👤 Byron F Disselhorst
- 👤 Dwight E Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:27
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/524; B; B01; B01J; B01J19/00; B01J19/0006; B01J19/002; C01; C01B; C01B32/00; C04B35/521; C04B35/522; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/5001; G; G21; G21C; G21C3/00; G21C3/02; G21C3/04; G21C3/06; G21C5/00; G21C5/12; G21C5/126; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T428/00; Y10T428/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A METHOD OF MAKING AN IMPROVED CARBON BODY, WHICH METHOD COMPRISES THE STEPS OF SELECTIVELY FILLING SOME, BUT NOT ALL, OF THE PORES THROUGHOUT SAID CARBON BODY BY IMPREGNATING TO FILL THE PORES THEREOF WITH AN IMPREGNANT COMPRISING A POLYMERIZABLE SUBSTANCE, APPLYING A DIFFERENTIAL GAS PRESSURE ACROSS SAID BODY TO CLEAR SAID IMPREGNANT FROM AN INTERCOMMUNICATING PROPORTION OF THE PORES OF SAID CARBON BODY, WHEREBY GASES EVOLVING FROM SAID IMPREGNANT DURING SUBSEQUENT CURING AND CARBONIZING THEREOF CAN REALLY PASS FROM SAID CARBON BODY THROUGH SAID CLEARED PORES SO THAT CRACKING OF SAID CARBON BODY IS AVOIDED, CURING SAID IMPREGNANT IN SAID CARBON BODY, CARBONIZING SAID CURED IMPREGNANT, AND REPEATING SAID IMPREGNATING, PORE-CLEARING, CURING AND CARBONIZING STEPS, WHEREBY THE PERMEABILITY OF SAID CARBON BODY TO FISSION PRODUCTS IS LOWERED TO PROVIDE AN IMPROVED CRACKFREE CARBON BODY.
Claim 2
Independent Claim
135 words
A METHOD OF MAKING AN IMPROVED CARBON BODY, WHICH METHOD COMPRISES THE STEPS OF SELECTIVELY FILLING SOME, BUT NOT ALL, OF THE PORES THROUGHOUT SAID CARBON BODY BY IMPREGNATING TO FILL THE PORES THEREOF WITH AN IMPREGNANT COMPRISING A POLYMERIZABLE SUBSTANCE, APPLYING A DIFFERENTIAL GAS PRESSURE ACROSS SAID BODY TO CLEAR SAID IMPREGNANT FROM AN INTERCOMMUNICATING PROPORTION OF THE PORES OF SAID CARBON BODY, WHEREBY GASES EVOLVING FROM SAID IMPREGNANT DURING SUBSEQUENT CURING AND CARBONIZING THEREOF CAN REALLY PASS FROM SAID CARBON BODY THROUGH SAID CLEARED PORES SO THAT CRACKING OF SAID CARBON BODY IS AVOIDED, CURING SAID IMPREGNANT IN SAID CARBON BODY, CARBONIZING SAID CURED IMPREGNANT, AND REPEATING SAID IMPREGNATING, PORE-CLEARING, CURING AND CARBONIZING STEPS, WHEREBY THE PERMEABILITY OF SAID CARBON BODY TO FISSION PRODUCTS IS LOWERED TO PROVIDE AN IMPROVED CRACKFREE CARBON BODY.
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) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |