# US 10,767,321 B2 · Integrated pavement systems for collecting and recycling de-icing fluid

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- Number: US 10,767,321 B2
- Document ID: US10767321B2
- Status: Granted
- Kind: B2
- Application number: 16/125,687
- Filed: 2018-09-08
- Published: 2019-03-14
- Granted: 2020-09-08
- Earliest claimed: 2017-09-08
- Assignees: F. von Langsdorff Licensing Limited
- Applicants: F. von Langsdorff Licensing Limited
- Inventors: Harald von Langsdorff
- Web page: https://patentgrep.com/patent/US10767321B2

## CPC

- E01C 11/24: Methods or arrangements for preventing slipperiness or protecting against influences of the weather {(measures taken in connection with the foundation E01C3/06; paving elements with anti-slip inlays E01C5/22; aggregates resisting to grinding E01C7/085, E01C7/142, E01C7/182; specially for surface layers E01C7/35; reinforcements extending up to the surface E01C11/16, E01C11/18, E01C11/185; drainage E01C11/22; windscreens E01F7/02; snow fences E01F7/02; combating fog E01H13/00)}
- B05B 12/004: {comprising sensors for monitoring the delivery, e.g. by displaying the sensed value or generating an alarm (B05B12/08 takes precedence; registering or indicating the condition or the working of machines or other apparatus in general G07C3/00)}
- B05B 14/00: Arrangements for collecting, re-using or eliminating excess spraying material (arrangements integral with nozzles B05B1/28)
- E01C 5/06: made of units with cement or like binders
- E01C 7/14: Concrete paving {(from concrete prepared in situ E01C7/12; small individual units from concrete cast in situ E01C9/001; arrangement or construction of joints E01C11/04; reinforcements E01C11/18)}
- E01C 7/18: of road-metal and bituminous binders {(for surface treatments except for penetration coverings, or for thin surface layers E01C7/353; bituminous mixtures C08L95/00)}
- E01C 11/245: {for preventing ice formation or for loosening ice, e.g. special additives to the paving material, resilient coatings (E01C11/26 takes precedence; built-in sanding or sprinkling devices E01H10/00)}
- B05B 12/081: {responsive to the weight of a reservoir or container for liquid or other fluent material; responsive to level or volume of liquid or other fluent material in a reservoir or container}
- B05B 12/12: responsive to conditions of ambient medium or target, e.g. humidity, temperature {position or movement of the target relative to the spray apparatus (B05B12/082, B05B12/084 take precedence)}
- E01C 11/225: {Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage (E01C9/004, E01C9/008, E01C9/08, E01C9/10, E01C11/228, E01C13/00 take precedence)}
- E01C 2201/14: Puzzle-like connections
- E01C 2201/20: Drainage details
- Y02A 30/30: in transportation, e.g. on roads, waterways or railways
- E01C: CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR (forming roads or like surfaces by compacting or grading snow or ice E01H)
- B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D)
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

## Abstract

An integrated ground surface system is provided for collecting and recycling de-icing fluid. The system includes: a permeable ground surface layer; a containment area located below the permeable ground surface layer, and comprising an impermeable liner to collect the de-icing fluid; a reservoir in fluidic communication with the containment area for storing the de-icing fluid; and an applicator device in fluidic communication with the reservoir to dispense the de-icing fluid.

## Claims

### Claim 1

An integrated ground surface system for collecting and recycling de-icing fluid, the system comprising:
a liquid permeable ground surface pavement layer;
a liquid permeable aggregate layer beneath and supporting the pavement layer;
a liquid impermeable liner layer beneath the aggregate layer;
at least one reservoir adapted to receive liquid permeating through the pavement and aggregate layers and collected above the liner layer, the liquid including the de-icing fluid; and
at least one first applicator device in fluid communication with the at least one reservoir to dispense the liquid received in the at least one reservoir over the pavement layer.

### Claim 2 (depends on 1)

The system of claim 1, the pavement layer comprises:
a permeable concrete layer;
permeable interlocking paving stones; and/or
a permeable asphalt layer.

### Claim 3 (depends on 1)

The system of claim 1 further comprising at least one pump to pump the liquid from the reservoir to the at least one first applicator device.

### Claim 4 (depends on 1)

The system of claim 1 further comprising at least one of the following:
a sensor to detect de-icing compound concentration in the fluid in the reservoir; and
a sensor to detect a volume of the fluid in the reservoir.

### Claim 5 (depends on 1)

The system of claim 1 further comprising at least one of the following:
at least one first de-icing compound tank and at least one second applicator device to dispense a de-icing compound from the at least one first tank onto the pavement layer; and/or
at least one second de-icing compound tank and at least one dispensing device to dispense the de-icing compound from the at least one second tank into the at least one reservoir.

### Claim 6 (depends on 1)

The system of claim 1, wherein the at least one reservoir further includes at least one of the following:
an outlet and a valve that controls the release of the liquid in the reservoir into subsoil; and
an outlet and a valve that controls the release of the liquid in the reservoir into a sewage system.

### Claim 7 (depends on 1)

The system of claim 1 further comprising a processor and one or more sensors in communication with the processor, wherein the one or more sensors monitor the at least one reservoir, and wherein the processor controls dispensing of the fluid from one or more of the applicator devices in response to data detected by the one or more sensors.

### Claim 8 (depends on 1)

The system of claim 1 further comprising a conduit leading from the reservoir to an outlet above the pavement layer for outputting the liquid in the reservoir, the outlet being ancillary to the at least one first applicator device.

### Claim 9 (depends on 1)

The system of claim 1, wherein the de-icing fluid is de-icing brine.

### Claim 10 (depends on 1)

The system of claim 1, wherein the aggregate layer includes piping for conveying at least a portion of the liquid to the at least one reservoir.

### Claim 11 (depends on 1)

The system of claim 1, wherein the liquid impermeable liner layer has a first side proximal to the at least one reservoir and an opposite second side and wherein the first side is provided at a lower elevation than the second side.

### Claim 12

An integrated ground surface system for collecting and recycling de-icing fluid, the system comprising:
a liquid permeable ground surface pavement layer;
a liquid permeable aggregate layer beneath and supporting the pavement layer;
a liquid impermeable liner layer beneath the aggregate layer;
at least one reservoir adapted to receive liquid permeating through the pavement and aggregate layers and collected above the liner layer, the liquid including the de-icing fluid;
at least one first applicator device in fluid communication with the at least one reservoir to dispense the liquid received in the at least one reservoir over the pavement layer;
at least one first tank for storing a de-icing compound;
at least one second applicator device to dispense the de-icing compound from the at least one first tank onto the pavement layer;
at least one dispensing device to dispense the de-icing compound from the at least one first tank into the at least one reservoir; and
a processor one or more sensors in communication with the processor, wherein the one or more sensors monitor the at least one reservoir, wherein the processor controls at least one of the following in response to data received from the one or more sensors:
dispensing the liquid from the at least one first applicator device;
dispensing the de-icing compound from the at least one second applicator device; and
dispensing the de-icing compound from the at least one first tank into the at least one reservoir using the dispensing device.

### Claim 13 (depends on 12)

The system of claim 12, wherein the at least one reservoir further includes at least one underground outlet and a respective valve that controls the release of the liquid in the at least one reservoir into a sewage system or subsoil; and
wherein the at least one reservoir is connected to a conduit leading from the reservoir to an outlet for dispensing the de-icing fluid over the pavement layer, the outlet being ancillary to the at least one first applicator device.

### Claim 14 (depends on 13)

The system of claim 13, wherein the processor controls at least one of the following in response to data received from the one or more sensors: the first applicator device, the underground outlet, and the outlet above the permeable ground surface.

### Claim 15 (depends on 13)

The system of claim 13, wherein the de-icing fluid is de-icing brine.

### Claim 16 (depends on 12)

The system of claim 12 further comprising a pump to pump the liquid from the at least one reservoir to the at least one first applicator device.

### Claim 17 (depends on 12)

The system of claim 12, wherein the aggregate layer includes piping for conveying at least a portion of the liquid to the at least one reservoir.

### Claim 18 (depends on 12)

The system of claim 12, wherein the liquid impermeable liner layer has a first side proximal to the at least one reservoir and an opposite second side and wherein the first side is provided at a lower elevation than the second side.

### Claim 19

A method for collecting and recycling de-icing fluid with an integrated ground system, the method comprising:
at least one of receiving the de-icing fluid or forming the de-icing fluid on a permeable ground pavement layer;
allowing the de-icing fluid to permeate through the pavement layer and through an aggregate layer beneath the pavement layer;
preventing further permeation of the de-icing fluid at an impermeable liner layer beneath the aggregate layer;
directing the de-icing fluid to at least one reservoir to collect the de-icing fluid; and
dispensing the collected de-icing fluid from the reservoir on the pavement layer.

### Claim 20 (depends on 19)

The method of claim 19, wherein the de-icing fluid is de-icing brine.
