US3746267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High viscosity dissolver
Assignee: Individual
•
Filing: 1971-08-26
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Granted: 1973-07-17
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Expires: 1991-08-26
Abstract
Abstract A dissolver for reducing blocks of material such as bales of rubber, resin and plastic, to small particle size, particularly suitable for preparing high viscosity solutions and dry particle mixtures. A container with a low-speed sweep shaft driving one or more sweep cutter shafts having overlapping cutter blades, with the shafts and blades arranged to provide a barrier in the container to larger chunks of material. Variable speed drives for the sweep and cutter shafts for controlling shaft speeds and directions of rotation.
Inventors
- 👤 C Myers
- 👤 G Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:46
CPC Classifications
B; B02; B02C; B02C18/00; B02C18/06; B02C18/08; B02C18/10; B02C18/16; B02C18/24
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
119 words
In a dissolver for reducing blocks of material,the combination of: a container having a circular wall and a bottom; a sweep shaft; means for mounting said sweep shaft for rotation within said container; at least one sweep blade carried on said sweep shaft for movement along said container wall as the shaft rotates; at least one cutter shaft; means for mounting said cutter shaft for rotation within said container with an axis of rotation generally parallel to the axis of rotation of said sweep shaft; a plurality of cutter blades carried on said cutter shaft, with cutter blades spaced along a shaft; first drive means for rotating said sweep shaft; and second drive means for rotating said cutter shaft.
Claim 2
Dependent Claim
119 words
In a dissolver for reducing blocks of material,the combination of: a container having a circular wall and a bottom; a sweep shaft; means for mounting said sweep shaft for rotation within said container; at least one sweep blade carried on said sweep shaft for movement along said container wall as the shaft rotates; at least one cutter shaft; means for mounting said cutter shaft for rotation within said container with an axis of rotation generally parallel to the axis of rotation of said sweep shaft; a plurality of cutter blades carried on said cutter shaft, with cutter blades spaced along a shaft; first drive means for rotating said sweep shaft; and second drive means for rotating said cutter shaft.
Claim 3
Dependent Claim
52 words
Apparatus as defined in claim 1 including a plurality of cutter blades carried on said sweep shaft spaced along the shaft in overlapping relation with the blades of the adjacent cutter shaft, with said shafts and overlapping blades providing a barrier to blocks of material between the sweep shaft and container wall.
Claim 4
Dependent Claim
32 words
Apparatus as defined in claim 2 including a plurality of inwardly disposed teeth on said sweep blade spaced along the blade in overlapping relation with the blades of the adjacent cutter shaft.
Claim 5
Dependent Claim
32 words
Apparatus as defined in claim 2 including A core on said sweep shaft substantially filling the spaces between the sweep shaft cutter blades except that overlapped by the adjacent cutter shaft blades.
Claim 6
Dependent Claim
38 words
Apparatus as defined in claim 2 including a sweep arm carried on said sweep shaft for movement along said container bottom as the shaft rotates, with said sweep blade carried at the outer end of said sweep arm.
Claim 7
Dependent Claim
63 words
Apparatus as defined in claim 5 wherein said sweep arm includes at least two members extending radially from said sweep shaft to said container wall with a sweep blade at the outer end of each member, and including a plurality of inwardly disposed teeth on each sweep blade spaced along the blade in overlapping relation with the blades of the adjacent cutter shaft.
Claim 8
Dependent Claim
69 words
Apparatus as defined in claim 1 including: a second cutter shaft; means for mounting said second cutter shaft for rotation within said container with an axis of rotation generally parallel to the axis of rotation of said sweep shaft; and a plurality of cutter blades carried on said second cutter shaft, with cutter blades spaced along the shaft and with the blades of said cutter shafts in overlapping relation.
Claim 9
Dependent Claim
23 words
Apparatus as defined in claim 1 wherein each of said first and second drive means includes means for varying the shaft rotation speed.
Claim 10
Dependent Claim
29 words
Apparatus as defined in claim 7 wherein said second drive means includes a transmission unit for selectively rotating said cutter shafts in the same direction and in opposite directions.
Claim 11
Dependent Claim
42 words
Apparatus as defined in claim 8 wherein said second drive means provides for driving said cutter shaft at a high rotational speed relative to that of said sweep shaft, with an available speed ratio in the order of about ten to one.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |