Patent US5667718A successfully refreshed from Google Patents.
US5667718A
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Lightweight dust suppressing aggregate for antiskidding applications
Assignee: TRNLWS LLC
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Filing: 1996-07-02
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Granted: 1997-09-16
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Expires: 2016-07-02
Abstract
Abstract A traction aggregate suitable for antiskidding applications where reduced dust generation is desired. An expanded substrate is saturated with a liquid absorbed dust suppressant and sealed with a liquid water repellant sealant/dust suppressant. The aggregate traction material may be dispersed over thoroughfares to provide adequate traction for vehicles and, once the snow/ice melts and the roadway dries, leaves behind a non-dusting material that will remain a dust suppressant material during and after subsequent vehicular degradation.
Inventors
- 👤 Martin Allen Jones
- 👤 Edward Charles Rosar
- 👤 Maurice Glenn Pattengill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:19
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/22; Y; Y10; Y10S; Y10S106/00; Y10S106/07
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
88 words
A traction aggregate composition, the composition adapted to be applied onto a surface consisting essentially of spreadable lightweight substrate particles selected from the group consisting of expanded shale and scoria, the substrate particles substantially impregnated with a liquid dust suppressant selected from the group consisting of calcium chloride and magnesium chloride, the substrate particles enveloped by an emulsified petroleum resin water sealant, and wherein a volume ratio of the liquid dust suppressant to emulsified petroleum resin water sealant is in the range of about 7:1 to about 14:1.
Claim 2
Dependent Claim
88 words
A traction aggregate composition, the composition adapted to be applied onto a surface consisting essentially of spreadable lightweight substrate particles selected from the group consisting of expanded shale and scoria, the substrate particles substantially impregnated with a liquid dust suppressant selected from the group consisting of calcium chloride and magnesium chloride, the substrate particles enveloped by an emulsified petroleum resin water sealant, and wherein a volume ratio of the liquid dust suppressant to emulsified petroleum resin water sealant is in the range of about 7:1 to about 14:1.
Claim 3
Dependent Claim
19 words
The composition according to claim 1 including a bulk density of about 40 to about 60 pounds/ft 3 .
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-09-15 | 2001-03-17 | 2001-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-09-15 | 2005-03-17 | 2005-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-09-15 | 2009-03-17 | 2009-09-16 | $7700.00 | Window Closed / Lapsed |