Patent US3907449A successfully refreshed from Google Patents.
US3907449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizing open graded asphalt-concrete
Assignee: Phillips Petroleum Co
•
Filing: 1974-08-28
•
Granted: 1975-09-23
•
Expires: 1994-08-28
Abstract
Abstract A method is provided for stabilizing an open graded course of asphalt-concrete against lateral displacement under a moving load. The method which is suitable for use during construction of the asphalt-concrete course or on courses already completed is carried out by causing particulate matter of suitable size to be passed into the interstices of the asphalt-concrete course and then consolidating this particulate matter within the interstices using an emulsion of a thermoplastic elastomer, a resinous material and a polar solvent which upon curing forms a stabilized course.
Inventors
- 👤 Richard J Bennett
- 👤 Lew T Gray
- 👤 Dale F Levy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:50
CPC Classifications
E; E01; E01C; E01C7/00; E01C7/08; E01C7/35; E01C7/355
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
20 words
A METHOD FOR STABILIZING AN OPEN GRADED COURSE OF ASPHALT-CONCRETE AGAINST LATERAL DISPLACEMENT UNDER A MOVING LOAD, SAID METHOD COMPRISING:
Claim 2
Independent Claim
20 words
A METHOD FOR STABILIZING AN OPEN GRADED COURSE OF ASPHALT-CONCRETE AGAINST LATERAL DISPLACEMENT UNDER A MOVING LOAD, SAID METHOD COMPRISING:
Claim 3
Dependent Claim
27 words
CAUSING PARTICULATE MATTER TO BE PASSED INTO THE INTERSTICES OF SAID ASPHALT-CONCRETE COURSE, SAID PARTICULATE MATTER SIZED IN A RANGE SUFFICIENTLY SMALL TO ENTER THE INTERSTICES, AND
Claim 4
Dependent Claim
27 words
CAUSING PARTICULATE MATTER TO BE PASSED INTO THE INTERSTICES OF SAID ASPHALT-CONCRETE COURSE, SAID PARTICULATE MATTER SIZED IN A RANGE SUFFICIENTLY SMALL TO ENTER THE INTERSTICES, AND
Claim 5
Dependent Claim
21 words
CONSOLIDATING THE PARTICULATE MATTER WITHIN THE INTERSTICES WITH AN EMULSION COMPRISING A THERMOPLASTIC ELASTOMER, A RESINOUS MATERIAL, AND A POLAR SOLVENT.
Claim 6
Dependent Claim
21 words
CONSOLIDATING THE PARTICULATE MATTER WITHIN THE INTERSTICES WITH AN EMULSION COMPRISING A THERMOPLASTIC ELASTOMER, A RESINOUS MATERIAL, AND A POLAR SOLVENT.
Claim 7
Dependent Claim
21 words
consolidating the particulate matter within the interstices with an emulsion comprising a thermoplastic elastomer, a resinous material, and a polar solvent.
Claim 8
Dependent Claim
21 words
consolidating the particulate matter within the interstices with an emulsion comprising a thermoplastic elastomer, a resinous material, and a polar solvent.
Claim 9
Dependent Claim
42 words
The method of claim 1 wherein particulate matter is caused to pass into said interstices by brushing the particulate matter over the surface of the course, vibrating the particulate matter into the surface of the course, or combining brushing and vibrating operations.
Claim 10
Dependent Claim
6 words
allowing the emulsion to break, and
Claim 11
Dependent Claim
6 words
allowing the emulsion to break, and
Claim 12
Dependent Claim
8 words
allowing the resulting elastomeric, consolidated structure to cure.
Claim 13
Dependent Claim
8 words
allowing the resulting elastomeric, consolidated structure to cure.
Claim 14
Dependent Claim
28 words
The method of claim 1 wherein the particulate matter is sand applied at a rate of about two to about five pounds per square yard of surface area.
Claim 15
Dependent Claim
11 words
The method of claim 1 wherein consolidating with said emulsion comprises:
Claim 16
Dependent Claim
47 words
The method of claim 4 wherein the particulate matter within said interstices is wetted with a dilute alkaline solution selected from sodium hydroxide, sodium bicarbonate, sodium carbonate and ammonia and excess of said solution is allowed to drain prior to wetting the particulate matter with said emulsion.
Claim 17
Dependent Claim
17 words
The method of claim 4 wherein curing is effected by applying heat to the treated asphalt-concrete course.
Claim 18
Dependent Claim
12 words
The method of claim 6 wherein the heat is applied using steam.
Claim 19
Dependent Claim
13 words
The method of claim 6 wherein the heat is applied using hot air.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |