Step assembly and walkway for a screed
US11293148B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2019 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Dec 8, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C2301/40
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A step assembly may include a first step support member and a second step support member to be connected to a screed frame, and a step frame movably connected to the first step support member and the second step support member. The step frame may be movably connected to the first step support member by a first pin engaged with the first step support member and a slot of the step frame. The step frame may be movably connected to the second step support member by a second pin engaged with the second step support member and an aperture of the step frame. The step frame may be biased to a position relative the first step support member and the second step support member by a first biasing member and a second biasing member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.