Form for forming concrete
AssigneeKabushiki Kaisha Kumagaigumi
InventorsTakayoshi Yokota, Shigekazu Horiya, Kenjiroh Tanaka
Life of this patent
Estimating the term…
Abstract
A form for forming concrete comprises a first sheet permitting surplus water contained in the concrete cast in the form to pass through the first sheet, but capable of blocking the passage of the concrete, a second sheet secured to the first sheet, permitting the surplus water to be absorbed into it, and a plate secured to the second sheet. The first sheet provides paths for the surplus water by the existence of the second sheet. The paths for the surplus water are ensured by a spacer provided between the first sheet and the plate in lieu of the second sheet or together with the second sheet.
Claims10
A form for forming concrete, comprising:
- a first sheet permitting surplus water in concrete cast in said form to pass through said first sheet, but capable of blocking the passage of said concrete;
- a second sheet secured to said first sheet and permitting said surplus water to be absorbed into said second sheet;
- a spacer secured to said second sheet;
- and
- a plate secured to said spacer;
- said spacer having on at least one surface a plurality of lugs spaced from each other, and defining paths for said surplus water having passed through said first and second sheets.
Dependencies are inferred from the claim text.