Steel pipe pile and steel pipe pile implementation method
US9328475B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2012 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Oct 12, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D7/22
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A steel pipe pile includes an elongated cylindrical steel pipe pile body with an open end and a helical wing fixed on an outer circumference of the pile body at a predetermined height range from the open end. The wing includes a wing edge extending outward from the outer circumference of the open end, and a wing body extending continuously with the wing edge and extending helically along the outer circumference and toward an upper side of the pile body. The open end includes an opening slanted in a radial direction of the pile body and a distal backside that is defined by a remaining circumference of the pile body. An upper end of the slanted opening is above the wing edge, and the distal backside has a point intersecting with a line orthogonal to a line connecting the wing edge and a center of the pile body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.