Asphalt screed extension tube adjustment assembly
US10794015B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2018 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Apr 19, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C2301/16
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A screed assembly for a paving machine is disclosed including a main screed portion and a screed extension portion being laterally exterior to the main screed portion. Furthermore, a screed extension tube is coupled to a screed frame and a screed extension portion frame, the screed extension tube adjusts a width of the screed extension portion. The screed assembly may further include an extension tube support mechanism having a bushing circumferentially surrounding the screed extension tube and disposed within a bushing recess defined in the screed extension portion frame. The extension tube support mechanism further having a retainer ring that circumferentially surrounds and is in direct contact with at least a portion of the bushing, and the retainer ring is capable of being adjusted between the bushing and the screed extension portion frame to eliminate an uncontrolled movement of the screed extension tube and the screed extension portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.