US 10,480,129 B2 · Methods and apparatus for repairing road surfaces

Abstract

Methods and apparatus for repairing road surfaces mix aggregate and liquified crack sealer on demand into mastic material for direct delivery to the road surfaces. Aggregate flows from a tilted box of a dump truck into a hopper and is conveyed by an auger into a tubular horizontal chamber. Liquified crack sealer is deliverable from a tank to the road surface or into the tubular horizontal chamber where it is mixed with the aggregate by a device into mastic material which is pushed through a vertical opening for delivery directly to the road surfaces. The frame which supports the hopper, conveyor, tank, and tubular horizontal chamber is movably supported on the road surfaces and is hitched to the dump truck.

Claims13

Dependent claims

Method comprising:

conveying aggregate to a chamber;
receiving a liquid in a tank;
pumping the liquid from the tank to the chamber;
mixing the aggregate and the liquid received in the chamber into a mixed material;
introducing heated first air in the conveyor to heat the aggregate conveying in the conveyor, with the heated first air flowing from the conveyor into the chamber to maintain temperature of the mixed material in the chamber;
introducing heated second air to heat the liquid in the tank and the chamber to maintain the temperature of the mixed material, with the heated first and second air being different;
and
delivering the mixed material from the chamber to a road surface for repairing the road surface.

5 more elements

Apparatus for repairing a road surface comprising, in combination:

a chamber having an opening;
a conveyor conveying aggregate into the chamber;
a tank configured to receive and hold liquid;
a pump pumping the liquid from the tank to the chamber;
means for mixing the aggregate and the liquid in the chamber to create mixed material and for delivering the mixed material through the opening of the chamber;
a first heater heating air along the conveyor and heating the aggregate being conveyed in the conveyor and with the air passing from the conveyor into the chamber for maintaining temperature of the mixed material in the chamber;
and
a second heater heating the tank and heating the liquid in the tank, with the second heater being in heat communication with the chamber for maintaining the temperature of the mixed material in the chamber.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/029,769Filed 9 Jul 2018 · us provisional application

Priority

10 Jul 2017

Published

US 2019/0010667 A110 Jan 2019

Granted

19 Nov 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

E01C 11/005
Details of pavings: methods or materials for repairing pavings
E01C 19/46
Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming,…: for…
E01C 23/06
Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces: devices or arrangements for…
E01C
Construction of, or surfaces for, roads, sports grounds, or the like

Methods and apparatus for repairing road surfaces

Life of this patent

Methods and apparatus for repairing road surfaces

Life of this patent

Abstract

Claims13