Hot in-place asphalt recycling machine

Road structure – process – or apparatus – Apparatus – With means for alternative ground support by tool or...

Reexamination Certificate

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Details

C404S090000, C180S209000, C280S436000, C280S043240

Reexamination Certificate

active

07077601

ABSTRACT:
A machine for providing hot-in-place recycling and repaving of an existing asphalt-based pavement, in which the pavement is first heated. Using this machine the heated pavement surface is then scarified, and new aggregate is dispensed onto it, to form a recycled, preheated asphalt and aggregate mixture. This mixture is again heated and scarified to premix it, and a new pavement surface is now milled to grade and width by applying this mixture using a plurality of extension mills having a main frame. The pavement surface is then remilled to grade using a main mill. Rejuvenator fluid is introduced in the main mill of the machine, and mixed with the recycled asphalt and aggregate mxiture. Rejuvenator fluid is also introduced into a pug mill of the machine and again mixed with the recycled asphalt and aggregate mixture. The rejuvenator-enriched, recycled asphalt and aggregate windrow thus formed is then laid to grade using one or more screeds.

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Hot-in-Place Brochure publicly distributed in 1997 (“1997 HIP Brochure”).
An Engineer's Guide to Hot-in-Place Recycling dated Nov. 12, 1994.
Specifications by the Michigan Department of Transportation, Michigan Project STP 9674(004) dated Jun. 7, 1996 (1996MDOT Specs).
Transcript for 1996 Videotape.
Dec. 9, 2002 P. Lloyd Affidavit.
Dec. 9, 2002 Donaghy Affidavit.

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