US3894724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making paving composition
Assignee: Individual
•
Filing: 1973-10-25
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Granted: 1975-07-15
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Expires: 1993-10-25
Abstract
Abstract A paving composition and method of making it in which the binder is a bituminous gel formed by mixing in a colloid mill from about 83% to about 97% of a hot bituminous material with from about 2% to about 16% of water and from about .1% to about 11% of a gelling agent. The gel while in a heated state is mixed in a mixer with an aggregate at the rate of from about 3% to about 8% based upon the weight of the aggregate to form a paving composition.
Inventors
- 👤 Kenneth E Mcconnaughay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:32
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/02; E01C19/10; E01C19/1013; E01C19/1027; E01C19/1031; E01C19/104; E01C19/1045; E01C19/1059; E01C19/1068; E01C19/1077; E01C2019/1081; E01C2019/1095
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
121 words
An apparatus for making a paving composition comprising a mixer, a chute at one end of said mixer for introducing an aggregate into said mixer, a colloid mill, means for introducing binder-forming materials into said mill, means for driving said mill whereby said binder-forming materials are mechanically milled in said mill to produce a binder in the form of a gel having colloidal size particles, an outlet on said mill in open communication with said mixer adjacent said chute for introducing the gel formed in said mill into said mixer, mixing means in said mixer for mixing said aggregate and gel together, means for driving said mixing means, and a discharge opening on the end of said mixer opposite said chute.
Claim 2
Independent Claim
121 words
An apparatus for making a paving composition comprising a mixer, a chute at one end of said mixer for introducing an aggregate into said mixer, a colloid mill, means for introducing binder-forming materials into said mill, means for driving said mill whereby said binder-forming materials are mechanically milled in said mill to produce a binder in the form of a gel having colloidal size particles, an outlet on said mill in open communication with said mixer adjacent said chute for introducing the gel formed in said mill into said mixer, mixing means in said mixer for mixing said aggregate and gel together, means for driving said mixing means, and a discharge opening on the end of said mixer opposite said chute.
Claim 3
Dependent Claim
41 words
An apparatus for making a paving composition as set forth in claim 1 in which said mixer is enclosed, heating means are provided for heating said mixer, and said mixer is provided with an exhaust stack for venting gaseous materials therefrom.
Claim 4
Dependent Claim
55 words
An apparatus for making a paving composition as set forth in claim 1 in which said mixer comprises a plurality of longitudinally extending beds, said mixing means comprises a plurality of paddles mounted on rotatable shafts extending through said beds, and said outlet on said mill is in open communication with each of said beds.
Claim 5
Dependent Claim
73 words
An apparatus for making a paving composition as set forth in claim 1 in which said mixer comprises a plurality of longitudinally extending beds, a hood extending over said beds, burner means mounted in said hood, an exhaust stack on said hood, said mixing means comprises a plurality of paddles mounted on rotatable shafts extending through said beds, and said outlet on said mill is in open communication with each of said beds.
Claim 6
Dependent Claim
34 words
An apparatus for making a paving composition as set forth in claim 1 in which said mixer comprises a rotatable drum, and said mixing means comprises a plurality of vanes mounted in said drum.
Claim 7
Dependent Claim
63 words
An apparatus for making a paving composition as set forth in claim 1 in which said mixer comprises a rotatable drum, said mixing means comprises a plurality of vanes mounted in said drum, a burner is mounted at one end of said drum for injecting heat into said drum, and an exhaust stack is connected to said drum for venting gaseous materials therefrom.
Claim 8
Independent Claim
65 words
An apparatus for making a paving composition comprising a mixer, a chute at one end of said mixer for introducing an aggregate into said mixer, means for forming a gel having colloidal size bituminous particles, means for introducing said gel into said mixer adjacent said chute, mixing means in said mixer for mixing said aggregate and gel together, and means for driving said mixing means.
Claim 9
Independent Claim
65 words
An apparatus for making a paving composition comprising a mixer, a chute at one end of said mixer for introducing an aggregate into said mixer, means for forming a gel having colloidal size bituminous particles, means for introducing said gel into said mixer adjacent said chute, mixing means in said mixer for mixing said aggregate and gel together, and means for driving said mixing means.
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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) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |