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US3753750A Expired / Lapsed US ⏱️ 0.0 years remaining

Protecting grain in storage areas by an oxychloride cementitious composition

Assignee: M&D Enterprises Inc
•
Filing: 1970-09-28
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Granted: 1973-08-21
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Expires: 1990-09-28
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Abstract

Abstract Protecting grain in storage areas by providing wall structures defining grain storage areas with an oxychloride cementitious composition formed by mixing dry magnesium chloride, magnesium oxide, asbestos, a particle waterproofing agent, granular material, and a mineral filler with sufficient water to form a plastic cementitious composition to be formed into walls for storage areas or placed on existing walls of extisting grain storage areas with the composition and walls thereof being rigid when cured. The composition is characterized by having sufficient porosity to permit air movement therethrough and thereby prevent formation of condensation resulting from rapid temperature drop outside the storage area and the composition inhibits growth of mold.

Inventors

  • 👤 H Davis

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 15:38
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/30; C04B28/32; E; E04; E04H; E04H7/00; E04H7/22; E04H7/24; E04H7/26; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/51

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 73 words
The method of protecting grain in a storage area as set forth in claim 1 wherein: a. said magnesium chloride and magnesium oxide are present in the cementIous composition in substantially equal quantities; b. said cementious composition including granular material in a ratio of one to four times the quantity of the magnesium oxide, and mineral filler in the ratio of 40 percent to 200 percent of the quantity of the magnesium oxide.
Claim 2
Dependent Claim 91 words
The method of protecting grain in a storage area as set forth in claim 2 wherein: a. said magnesium chloride is fifteen percent to 30 percent of the total weight of dry materials; b. said magnesium oxide is fifteen percent to 30 percent of the total weight of dry materials; c. said particle waterproofing agent is calcium sterate and calcium sterate is one percent to 5 percent of the total weight of dry materials; and d. said asbestos is one percent to 10 percent of the total weight of dry materials.

References Cited (Backward Citations)

US1078845A Cited
US1524664A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-08-20 1977-02-19 1977-08-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-08-20 1981-02-19 1981-08-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-08-20 1985-02-19 1985-08-21 $7700.00 Window Closed / Lapsed

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