Patent US3583680A successfully refreshed from Google Patents.
US3583680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing and discharging apparatus for fillers and binders
Assignee: Aust und Schuttler & Co M A S
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Filing: 1968-10-04
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Granted: 1971-06-08
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Expires: 1988-10-04
Abstract
Abstract A mixing and discharging apparatus for fillers and binders, comprising a wormshaft consisting of at least three sections, the first of which, as viewed in the conveying direction, is provided with one or more worm threads and has a greater conveying rate than the last section likewise provided with one or more threads. A worm shaft exists between these sections which has a plurality of arms or fins for mixing the binder with the filler and there is a feed for introducing filler located at the beginning of the first section (first conveying section) and a further feed for introducing a binder located at the transition from the first section to the second section (mixing section) of the worm shaft.
Inventors
- 👤 Alois Aust
- 👤 Emil Schuttler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:38
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/58; B29B7/60; B01; B01F; B01F27/00; B01F27/60; B01F27/72; B29C; B29C48/00; B29C48/25; B29C48/285; B29C48/288; B29C48/2886; B29C48/29; B29C48/36; B29C48/395; B01F35/00; B01F35/75; B29C48/03; B29K; B29K2105/00; B29K2105/06; B29K2105/16
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
43 words
The apparatus as claimed in claim 2, wherein each successive conveying section, with the exception of said last section, has an increased thread pitch to increase the conveying rate while the external diameter of the worm thread remains the same in all sections.
Claim 2
Dependent Claim
44 words
The apparatus as claimed in claim 1, and further comprising at least two second feed means to introduce the binder in at least two separate components which do not harden prior to being mixed together but undergo hardening within a predetermined period after mixing.
Claim 3
Dependent Claim
28 words
The apparatus as claimed in claim 1, and further comprising a third feed means for introducing colorants at the transition from said mixing section to said last section.
Claim 4
Dependent Claim
22 words
The apparatus as claimed in claim 5, and further comprising control means for controlling the feed pressure of the binder and colorant.
Claim 5
Dependent Claim
18 words
The apparatus as claimed in claim 6 wherein said control means comprises positive-displacement pumps driven by variable-speed motors.
Claim 6
Dependent Claim
37 words
The apparatus as claimed in claim 7, and further comprising pressurized vessels for storing said binder and colorAnts and for feeding the positive-displacement pumps through conduits connected therewith, and further means for maintaining a constant, adjustable pressure.
Claim 7
Dependent Claim
47 words
The apparatus as claimed in claim 5 wherein said third feed means has interchangeable mouthpieces of different outlet cross section, and further comprising means for controlling the feed pressure of the colorants in order to vary the quantity of the colorants and the degree of dilution thereof.
Claim 8
Dependent Claim
21 words
The apparatus as claimed in claim 1 wherein said rotating means permits the speed of the wormshaft to be continuously variable.
Claim 9
Dependent Claim
55 words
The apparatus as claimed in claim 1, and further comprising a cutter wheel having irregularly distributed peripheral cutters arranged beyond the end of the worm shaft housing, which wheel dips its cutting edges into a colorant reservoir and cuts into the product from below through a slot in a chute that carries the emerging product.
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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |