US4980321A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parts for internal combustion engine such as piston and cylinder head
Assignee: Isuzu Motors Ltd
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Filing: 1988-12-22
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Granted: 1990-12-25
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Expires: 2008-12-22
Abstract
Abstract Parts for an internal combustion engine such as a piston and a cylinder head manufactured by mixing inorganic coating material with potassium titanate fibers, silicon nitride whiskers and/or glass balloons, adding to and mixing with the above mixture calcium oxide (CaO) as a hardening promoter, drying the article so produced, and baking the same. The potassium titanate fibers is 5 to 40%, the silicon nitride whisker is 10 to 50%, and the glass balloon is 0 to 15% in weight of the inorganic coating material, and the calcium oxide is 1 to 10% of the total weight of the potassium titanate fibers, silicon nitride whiskers and/or glass balloons. The drying time is reduced by adding CaO as a hardening promoter.
Inventors
- 👤 Akira Tsujimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:12
CPC Classifications
F; F02; F02B; F02B77/00; F02B77/02; C; C04; C04B; C04B35/00; C04B35/01; C04B35/14; C04B35/46; C04B35/71; C04B35/78; C04B35/80; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/32; C04B2235/3205; C04B2235/3208; C04B2235/3231; C04B2235/3232; C04B2235/34; C04B2235/3418; C04B2235/36; C04B2235/50; C04B2235/52; C04B2235/5208; C04B2235/5216; C04B2235/522; C04B2235/524; C04B2235/5276; C04B2235/70; C04B2235/74; C04B2235/77; C04B2235/96; C04B2235/9607; F05; F05C; F05C2203/00; F05C2203/08; F05C2253/00; F05C2253/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
98 words
A part for an internal combustion engine manufactured by: (A) mixing an inorganic coating material with the following substances potassium titanate fibers of 5-40% in weight of the solid components of said coating material, silicon nitride whiskers of 10-50% in weight of said solid components of said coating materials, glass balloons of 0-15% in weight of said solid components; (B) adding calcium oxide (CaO) possessing a weight percentage of 1-10% of the total weight of said potassium titanate fibers, silicon nitride whiskers and glass balloons; and (C) drying and baking the mixture produced in steps (A) and (B).
Claim 2
Dependent Claim
98 words
A part for an internal combustion engine manufactured by: (A) mixing an inorganic coating material with the following substances potassium titanate fibers of 5-40% in weight of the solid components of said coating material, silicon nitride whiskers of 10-50% in weight of said solid components of said coating materials, glass balloons of 0-15% in weight of said solid components; (B) adding calcium oxide (CaO) possessing a weight percentage of 1-10% of the total weight of said potassium titanate fibers, silicon nitride whiskers and glass balloons; and (C) drying and baking the mixture produced in steps (A) and (B).
Claim 3
Dependent Claim
85 words
A part for an internal combustion engine manufactured by: (A) mixing an inorganic coating material with the following substances potassium titanate fibers of 5-40% in weight of the solid components of said coating material, and glass balloons of 0-15% in weight of the solid components of said coating material; (B) adding calcium oxide (CaO) possessing a weight percentage of 1-10% of the total weight of said potassium titanate fibers and glass balloons; and (C) drying and baking the mixture produced in steps (A) and (B).
Claim 4
Dependent Claim
85 words
A part for an internal combustion engine manufactured by: (A) mixing an inorganic coating material with the following substances potassium titanate fibers of 5-40% in weight of the solid components of said coating material, and glass balloons of 0-15% in weight of the solid components of said coating material; (B) adding calcium oxide (CaO) possessing a weight percentage of 1-10% of the total weight of said potassium titanate fibers and glass balloons; and (C) drying and baking the mixture produced in steps (A) and (B).
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) | 1993-12-24 | 1994-06-25 | 1994-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-24 | 1998-06-25 | 1998-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-24 | 2002-06-25 | 2002-12-25 | $7700.00 | Window Closed / Lapsed |