US3969053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for distributing dyestuffs or other additional materials in extruders or the like
Assignee: Individual
•
Filing: 1974-12-04
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Granted: 1976-07-13
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Expires: 1994-12-04
Abstract
Abstract Device for distributing dyestuffs or other additional materials in an extruding machine, the dyestuff material being contained in a kind of removable and interchangeable cartridge that is fixed to the feed chute of the extruding machine. The cartridge is provided with means for pressing said material and a dosing member for controlling the feed of material into the machine.
Inventors
- 👤 Emile Felix Baconnier
- 👤 Francois Delicheres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:16
CPC Classifications
B; B29; B29C; B29C31/00; B29C31/04; B29C31/06; B29C31/065; B29C31/068; B29C45/00; B29C45/17; B29C45/18; B29C45/1816; B29C48/00; B29C48/25; B29C48/285; B29C48/29; B29C2045/185; B29C48/03; B29K; B29K2105/00; B29K2105/0005
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
159 words
In combination with an extruding machine having a screw extruder and a chute for feeding material to said screw extruder, wherein said chute being provided with a lateral aperture; a device for adding an additional substance in a pulverulent state to said material, said device comprising a cylindrical cartridge container for a mass of the said additional substance; means at one end of said container for securing it in a removable manner to said chute in register with said aperture; rotatable scraping means at the same end of said container for progressively removing a portion of said mass allowing said removed portion to fall into said chute; means in said container including a pressure actuated piston for pushing said mass towards said scraping means; means for rotating said scraping means; and transmission means between said screw extruder and said rotating means for communicating to said scraping means a rotational movement proportional to the axial movement of the extruder screw.
Claim 2
Dependent Claim
159 words
In combination with an extruding machine having a screw extruder and a chute for feeding material to said screw extruder, wherein said chute being provided with a lateral aperture; a device for adding an additional substance in a pulverulent state to said material, said device comprising a cylindrical cartridge container for a mass of the said additional substance; means at one end of said container for securing it in a removable manner to said chute in register with said aperture; rotatable scraping means at the same end of said container for progressively removing a portion of said mass allowing said removed portion to fall into said chute; means in said container including a pressure actuated piston for pushing said mass towards said scraping means; means for rotating said scraping means; and transmission means between said screw extruder and said rotating means for communicating to said scraping means a rotational movement proportional to the axial movement of the extruder screw.
Claim 3
Dependent Claim
38 words
The combination of claim 1, wherein said means for rotating said scraping means comprises a shaft mounted in said container coaxially therewith and passing through said mass, said pressure actuated piston being annular and sliding along said shaft.
Claim 4
Dependent Claim
48 words
The combination of claim 1, wherein said scraping means comprises a rotatable disk mounted at said one end of said container, provided with radial slots and scraping blades connected in said slots for scraping said mass and urging said removed portion through said slots and into said chute.
Claim 5
Dependent Claim
19 words
The combination of claim 1, further comprising mixer means mounted in said chute in front of said lateral aperture.
Claim 6
Dependent Claim
72 words
The combination of claim 1, wherein said screw extruder comprises a die and a translation movable extruder screw which moves away from said die while rotating for accumulating the material to be extruded behind said die and then moving back towards said die for expelling said accumulated material through the die, said transmission means being adapted to rotate said scraping means only when said extruder screw is moving away from the die.
Claim 7
Dependent Claim
65 words
The combination of claim 5 wherein said transmission means includes a ratchet wheel containing ratchet teeth connected to said scraping means, a pawl, an arm carrying said pawl and means for rotating said arm during translation of said extruder screw, the orientation of the ratchet teeth being such that the scraping means is driven only during the movement of the screw away from said die.
Claim 8
Dependent Claim
93 words
The combination of claim 6, wherein said scraping means comprises a rotatable disk mounted at said one end of said container and provided with radial slots and scraper blades connected in said slots for scraping said mass and urging said removed portion through said slots and into said chute, said means for rotating said scraping means comprises a shaft mounted in said container coaxially therewith and passing through said mass, said pressure actuated piston being annular and sliding along said shaft, said rotatable disk and said ratchet wheel being secured to said shaft.
Claim 9
Dependent Claim
19 words
The combination of claim 7, further comprising mixer means located in said chute in front of said lateral aperture.
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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) | 1979-07-13 | 1980-01-12 | 1980-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-13 | 1984-01-12 | 1984-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-13 | 1988-01-12 | 1988-07-13 | $7700.00 | Window Closed / Lapsed |