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US3860219A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for manually mixing cement

Assignee: Individual
•
Filing: 1969-11-20
•
Granted: 1975-01-14
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Expires: 1989-11-20
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Abstract

Abstract A process for manually mixing batches of cement wherein a pliable bag is converted from the common use as a container for holding dry cement into a means for feasibly mixing said cement and water in quantities intermediate those that can be vigorously shaken by hand and those that require mechanical means due to substantial weight. In other words, a process adapted to be used for batches ranging in weight from 10 to 100 pounds but not necessarily limited to that range. A process that comprises the steps of placing a pliable bag on a flat surface such as the ground; filling said bag with the proper ratio of cement and water; closing said bag and trapping air within in a manner wherein said air will support said bag from within causing it to form an ellipsoid, which, generally defined as ball shaped, will readily lend itself to being rolled about on the ground thereby mixing the cement and water.

Inventors

  • 👤 Jr Bryan W Nickerson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 16:19
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/44; B28C5/02; B28C5/023

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 177 words
A process for manually mixing cement and a liquid by converting a pliable bag into a means for mixing said cement and liquid, comprising the steps of: placing a pliable bag on a surface, fractionally filling said bag with the proper ratio of cement and liquid, closing said bag and trapping air within to a degree that the volume of air trapped therein is greater than that which said bag would hold if it were unaffected by said air trapped therein whereby said unaffected bag will remain in its natural preformed state subject to collapsing in the air portion thereof; the trapping of said air serving to concavely deform said bag from within and support said bag from within in an uncollapsible manner, said deformity chAracterized as an elipsoid having concave sides when viewed from within and when said bag is filled with the cement, liquid and air, subjecting said bag to manual manipulation characterized as moving said bag about an axis parallel with the surface on which it rests thereby mixing said cement and said liquid.
Claim 2
Dependent Claim 177 words
A process for manually mixing cement and a liquid by converting a pliable bag into a means for mixing said cement and liquid, comprising the steps of: placing a pliable bag on a surface, fractionally filling said bag with the proper ratio of cement and liquid, closing said bag and trapping air within to a degree that the volume of air trapped therein is greater than that which said bag would hold if it were unaffected by said air trapped therein whereby said unaffected bag will remain in its natural preformed state subject to collapsing in the air portion thereof; the trapping of said air serving to concavely deform said bag from within and support said bag from within in an uncollapsible manner, said deformity chAracterized as an elipsoid having concave sides when viewed from within and when said bag is filled with the cement, liquid and air, subjecting said bag to manual manipulation characterized as moving said bag about an axis parallel with the surface on which it rests thereby mixing said cement and said liquid.

References Cited (Backward Citations)

US2863305A Cited
US2828858A Cited
US3144242A Cited
US3389893A Cited
US3473789A Cited
US3419258A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-01-13 1978-07-15 1979-01-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-01-13 1982-07-15 1983-01-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-01-13 1986-07-15 1987-01-14 $7700.00 Window Closed / Lapsed

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