Invention Grant
- Patent Title: Compacting screed extension for paving
- Patent Title (中): 压实熨平板延伸用于铺路
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Application No.: US13288197Application Date: 2011-11-03
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Publication No.: US08491221B1Publication Date: 2013-07-23
- Inventor: Sven N. Hedin
- Applicant: Sven N. Hedin
- Applicant Address: US PA Reading
- Assignee: Asphalt Joint Compactor, LLC
- Current Assignee: Asphalt Joint Compactor, LLC
- Current Assignee Address: US PA Reading
- Agency: Miller Law Group, PLLC
- Main IPC: E01C19/22
- IPC: E01C19/22 ; E01C19/00

Abstract:
A screed extension is selectively connected to opposing sides of a paving screed used to lay a blacktop over large surfaces to create a wedge notch joint for merging with an adjacent swath of blacktop. The screed extension includes a positionable base plate that can be oriented at a selective depth relative to the screed. The base plate is connected to linear actuators through a gear box corresponding to opposing sides of the base plate to position the corresponding side of the base plate at a selected height to orient the base plate in a sloped configuration to form the wedge notch joint along a side of a course of blacktop. The base plate supports a vibration unit providing compaction to the wedge notch joint as the course of blacktop is being deposited, thus providing a dense joint between adjacent swaths of a course of blacktop.
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