Implement with reinforcing rib or corrugation
US6170893A · kind A · utility
8Cited by
10References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 10, 1999 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Aug 10, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B11/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A reinforced implement such as a shovel is described having increased strength and resistance to deformation and/or fracture, especially in the area where the socket engaging the handle and blade are joined. Advantageously, the blade, socket, and reinforcement are formed from a single unitary piece of material having essentially uniform thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.