Bag body and method for producing bag body
US12110647B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2021 |
| Grant date | Oct 8, 2024 |
| Priority date | — |
| Expiry date | May 7, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B3/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A bag body 10 is filled with stones 12. A restraining rope 14 extends from the bottom of the bag body 10 through the center of the bag body 10 and is pulled up together with a lifting rope 15 to lift the bag body 10. The bag body 10 is within a predetermined range centered about a curve given by W/H1 (diameter/restraining rope length)=15.898×(W/W0)2−17.784×(W/W0)+6.6314, where W represents the diameter of the bag body 10, H1 represents the length of the restraining rope 14 from the bottom portion of the bag body 10 to a root position of a mouth closing rope 13 of a bag material through the center of the bag body 10, and W0 represents the diameter when the bag material 11 is filled with the filling material 12.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.