US4038094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding composition
Assignee: Individual
•
Filing: 1976-04-05
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Granted: 1977-07-26
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Expires: 1996-04-05
Abstract
Abstract A molding composition, made of earth products, which is particularly suitable for producing urns and frames for mausoleum niches and other decorative articles. In its dry state the molding composition is made of about 11/2 parts by volume standard casting plaster, 1 part by volume Portland cement and 7/8 part by volume sand. Preferably about 0.5-2 parts by volume fiberglass fibers are also added to the molding composition. The dry composition is mixed with about 11/2 parts by volume of water, enough to produce a standard 7 inch slump, and placed in a mold having the shape of the decorative article to be produced where it is allowed to set.
Inventors
- 👤 Herman H. Bondi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:54
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/14; A; A61; A61G; A61G17/00; A61G17/007; A61G17/08; C04B2103/00; C04B2103/30; C04B2103/302; C04B2111/00; C04B2111/00474; C04B2111/00948
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
76 words
A molding compositio in dry form consisting essentially of about one and one-half parts by volume of casting plater containing at least 80% calcined gypsum with a particle size fine enough that all particles pass a No. 30 sieve and at least 90% pass a No. 100 sieve, about one part by volume of Portland cement, and about seven-eights part by volume of sand with a mesh size in the range of 16 to 24 mesh.
Claim 2
Dependent Claim
76 words
A molding compositio in dry form consisting essentially of about one and one-half parts by volume of casting plater containing at least 80% calcined gypsum with a particle size fine enough that all particles pass a No. 30 sieve and at least 90% pass a No. 100 sieve, about one part by volume of Portland cement, and about seven-eights part by volume of sand with a mesh size in the range of 16 to 24 mesh.
Claim 3
Dependent Claim
92 words
A molding composition in dry form consisting essentially of about one and one-half parts by volume of casting plaster containing at least 80% calcined gypsum with a particle size fine enough that all particles pass a No. 3 sieve and at least 90% pass a No. 100 sieve, about one part by volume of Portland cement, about seven-eights part by volume of sand with a mesh size in the range of 16 to 24 mesh, and about one-half to two parts by volume of fiberglass fibers having discontinuous lengths of about 1/8-inch.
Claim 4
Dependent Claim
92 words
A molding composition in dry form consisting essentially of about one and one-half parts by volume of casting plaster containing at least 80% calcined gypsum with a particle size fine enough that all particles pass a No. 3 sieve and at least 90% pass a No. 100 sieve, about one part by volume of Portland cement, about seven-eights part by volume of sand with a mesh size in the range of 16 to 24 mesh, and about one-half to two parts by volume of fiberglass fibers having discontinuous lengths of about 1/8-inch.
Claim 5
Dependent Claim
16 words
The molding composition of claim 2 additionally containing sufficient water to produce a standard 7-inch slump.
Claim 6
Dependent Claim
22 words
The molding composition of claim 3 wherein the water contains a water-reducing agent and a liquid bonding agent for plaster and cement.
References Cited (Backward Citations)
US1432545A
Cited
US2509599A
Cited
US3232778A
Cited
US3582376A
Cited
US3847635A
Cited
US3852081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |