US3552357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial oyster clutch and method of producing same
Assignee: Canadian Patents and Development Ltd
•
Filing: 1969-06-02
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Granted: 1971-01-05
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Expires: 1989-06-02
Abstract
Abstract A composition for artificial oyster cultches made up of a compressed mixture of hydraulic cement, lime, an antislime lubricant, gypsum, and a fibre binding material, said compressed mixture being substantially saturated with a catalyzed aqueous solution. The method of making oyster cultches which comprise mixing in the dry state said cement, lime, antislime lubricant, gypsum and fibre binding material, pressing said mixture into cultches under high pressure, substantially saturating the formed cultches with the catalyzed aqueous solution, and hardening the formed cultches.
Inventors
- 👤 Daniel B Quayle
- 👤 Trevor P Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:02
CPC Classifications
A; A01; A01K; A01K61/00; A01K61/50; A01K61/54; Y; Y02; Y02A; Y02A40/00; Y02A40/80; Y02A40/81
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
27 words
The composition as claimed in claim 1 in which the catalyzed aqueous solution is an aqueous calcium chloride solution of between about 0 to 20 percent concentration.
Claim 2
Dependent Claim
16 words
The composition as claimed in claim 1 in which said fibrous binding material comprises asbestos fibers.
Claim 3
Dependent Claim
131 words
The composition as claimed in claim 1, including a filler material selected from the group consisting of calcium carbonate, silica, talc, and barium sulfate. 5 The composition as claimed in claim 1 comprising of a compressed mixture of about 5 to 75 percent of a cement selected from the group consisting of Portland cement and aluminous hydraulic cement; between about 0 to 50 percent lime in the form of calcium hydroxide or slaked lime, about 0.2 to 5.0 percent of a lubricant selected from the group consisting of zinc stearate, stearic acid, calcium stearate, magnesium stearate, aluminum stearate; and zinc soap; about 5 percent to 30 percent gypsum; and fibrous binding material sufficient to make up balance to 100 percent; said compressed mixture being substantially saturated with a catalyzed aqueous solution.
Claim 4
Dependent Claim
27 words
The composition as claimed in claim 5 in which the catalyzed aqueous solution is an aqueous calcium chloride solution of between about 0 to 20 percent concentration.
Claim 5
Dependent Claim
16 words
The composition as claimed in claim 5 in which said fibrous binding material comprises asbestos fibers.
Claim 6
Dependent Claim
29 words
The composition as claimed in claim 5 including with the fibrous binding material a filler material selected from the group consisting of calcium carbonate, silica, talc, and barium sulfate.
Claim 7
Independent Claim
106 words
The method of producing an artifical oyster cultch which comprises mixing in the dry state a cement selected from the group consisting of Portland cement and aluminous hydraulic cement; lime in the form of calcium hydroxide or slake lime; a lubricant selected from the group consisting of zinc stearate, stearic acid, calcium stearate, magnesIum stearate, aluminum stearate, and zinc soap; gypsum, and fibrous binding material; pressing said mixture into cultches under sufficient pressure to enable the formed cultches to be handled, substantially saturating the formed cultches with a catalyzed aqueous solution and hardening the formed cultches and placing the resultant cultch in a suitable oyster habitat.
Claim 8
Dependent Claim
26 words
The method as claimed in claim 9 in which the pressure used in forming the cultches is something of the order of 8 to 12 tons.
Claim 9
Dependent Claim
20 words
The method as claimed in claim 9 in which the catalyed aqueous solution is sprayed on to the compressed cultches.
Claim 10
Dependent Claim
27 words
The method as claimed in claim 9 in which the catalyzed aqueous solution is an aqueous calcium chloride solution of between about 0 to 20 percent concentration.
Claim 11
Dependent Claim
16 words
The method as claimed in claim 9 in which said fibrous binding material comprises asbestos fibers.
Claim 12
Dependent Claim
27 words
The method as claimed in claim 9 including in the mixture of filler material selected from the group consisting of calcium carbonate, silica, talc, and barium sulfate.
Claim 13
Independent Claim
128 words
The method of producing an artificial oyster cultches which comprises mixing in a dry state about 5 to 75 percent of a cement selected from the group consisting of Portland cement and aluminous hydraulic cement; between about 0 to 50 percent lime in the form of calcium hydroxide or slaked lime, about 0.2 to 5.0 percent of a lubricant selected from the group consisting of zinc stearate, stearic acid, calcium stearate, magnesium stearate, aluminum stearate, and zinc soap; about 5 to 30 percent gypsum and fibrous binding material sufficient to make up the balance to 100 percent; pressing said mixture into cultches under sufficient pressure to enable the formed cultches to be handled, substantially saturating the formed cultches with a catalyzed aqueous solution and hardening the formed cultches.
Claim 14
Dependent Claim
26 words
The method as claimed in claim 15 in which the pressure used in forming the cultches is something of the order of 8 to 12 tons.
Claim 15
Dependent Claim
20 words
The method as claimed in claim 15 in which the catalyzed aqueous solution is sprayed on to the compressed cultches.
Claim 16
Dependent Claim
27 words
The method as claimed in claim 15 in which the catalyzed aqueous solution is an aqueous calcium chloride solution of between about 0 to 20 percent concentration.
Claim 17
Dependent Claim
16 words
The method as claimed in claim 15 in which said fibrous binding material comprises asbestos fibers.
Claim 18
Dependent Claim
27 words
The method as claimed in claim 15 including in the mixture a filler material selected from the group consisting of calcium carbonate, silica, talc, and barium sulfate.
References Cited (Backward Citations)
US2319170A
Cited
US3017857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |