Patent US3814296A successfully refreshed from Google Patents.
US3814296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metering apparatus for plastic materials
Assignee: Colortronic Reinhard GmbH and Co KG
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Filing: 1973-01-30
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Granted: 1974-06-04
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Expires: 1993-01-30
Abstract
Abstract A metering device for plastic materials comprising a bin having a rotating feed disc at the bottom thereof. The feed disc has peripheral cogs which partially define a metering chamber. Facing the metering disc is an ejection disc having teeth meshing with the cogs for forcing material into the metering chamber and ejecting the material from the metering chamber through an opening in the side of the bin.
Inventors
- 👤 A Tschritter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:52
CPC Classifications
G; G01; G01F; G01F11/00; G01F11/10; G01F11/12; G01F11/20; G01F11/22
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
106 words
A metering device for kneadable masses and the like comprising a supply bin having a floor, a rotatable feed disc with cogs projecting into the bin disposed on said floor, a rotatable ejection disc having teeth engaging said cogs to form a metering chamber, said teeth being arranged to force the content of the metering chamber out a discharge opening in the bin, a cover plate covering the metering chamber and projecting into the supply bin, the cogs extending to the coverplate, their height being equal to the height of the teeth on the ejection disc whereby during the metering a closed metering chamber is formed.
Claim 2
Dependent Claim
106 words
A metering device for kneadable masses and the like comprising a supply bin having a floor, a rotatable feed disc with cogs projecting into the bin disposed on said floor, a rotatable ejection disc having teeth engaging said cogs to form a metering chamber, said teeth being arranged to force the content of the metering chamber out a discharge opening in the bin, a cover plate covering the metering chamber and projecting into the supply bin, the cogs extending to the coverplate, their height being equal to the height of the teeth on the ejection disc whereby during the metering a closed metering chamber is formed.
Claim 3
Dependent Claim
23 words
A metering device according to claim 1 wherein the coverplate is sloped at the entry side to avoid overloading of the metering chamber.
Claim 4
Dependent Claim
35 words
A metering device according to claim 2 wherein the coverplate is provided with a slot for the release of the excess mass displaced by cogs from the spaces between the teeth of the ejection disc.
Claim 5
Dependent Claim
32 words
A metering device according to claim 3 wherein a release recess is formed in the wall of the supply bin to prevent excessive compaction of the kneadable mass in the metering chamber.
Claim 6
Dependent Claim
22 words
A metering device according to claim 1 wherein the discharge opening has a comminuting grating disposed thereon for dividing the metered material.
Claim 7
Dependent Claim
136 words
A metering device for kneadable masses and the like comprising a supply bin having a floor, a rotable feed disc with cogs projecting into the bin disposed on said floor, a rotable ejection disc having teeth engaging said cog to form a metering chamber, said teeth being arranged to force the content of the metering chamber out a discharge opening in the bin, a coverplate covering the metering chamber and projecting into the supply bin, a triangular wiper fixed to said coverplate having two curved sides, one adjacent the outer circumference of the ejection disc and the other adjacent the inner circumference of the cogs, the cogs extend to the coverplate and their height being equal to the height of the teeth on the ejection disc whereby during the metering completely closed metering chamber is formed.
Claim 8
Dependent Claim
136 words
A metering device for kneadable masses and the like comprising a supply bin having a floor, a rotable feed disc with cogs projecting into the bin disposed on said floor, a rotable ejection disc having teeth engaging said cog to form a metering chamber, said teeth being arranged to force the content of the metering chamber out a discharge opening in the bin, a coverplate covering the metering chamber and projecting into the supply bin, a triangular wiper fixed to said coverplate having two curved sides, one adjacent the outer circumference of the ejection disc and the other adjacent the inner circumference of the cogs, the cogs extend to the coverplate and their height being equal to the height of the teeth on the ejection disc whereby during the metering completely closed metering chamber is formed.
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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |