US3797982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruder output multiplier
Assignee: Colgate Palmolive Co
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Filing: 1972-05-08
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Granted: 1974-03-19
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Expires: 1992-05-08
Abstract
Abstract A cylindrical extrusion head having a series of varied size, multiple outlet orifices is used to multiply the output of an extruder.
Inventors
- 👤 G Borrello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:44
CPC Classifications
C; C11; C11D; C11D13/00; C11D13/14; C11D13/18; B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/345; B30; B30B; B30B11/00; B30B11/22; B30B11/224; B29C48/03; B29C48/05
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
83 words
An extruder output multiplier characterized by a cylindrical body having an open end and a perforated closed end opposite said open end, means on said body adjacent said body having a plurality of series of annularly spaced apertures therethrough, and a cylindrical screen disposed in said body, said screen having an open end and a closed end adjacent said closed end of said body, each of said series of apertures being of increasing dimensions as the distance thereof from said open end increases.
Claim 2
Dependent Claim
83 words
An extruder output multiplier characterized by a cylindrical body having an open end and a perforated closed end opposite said open end, means on said body adjacent said body having a plurality of series of annularly spaced apertures therethrough, and a cylindrical screen disposed in said body, said screen having an open end and a closed end adjacent said closed end of said body, each of said series of apertures being of increasing dimensions as the distance thereof from said open end increases.
Claim 3
Dependent Claim
96 words
An extruder output multiplier characterized by a cylindrical body having an open end and a perforated closed end opposite said open end, means on said body adjacent said open end for attachment of said body to an extruder, said body having a plurality of series of annularly spaced apertures therethrough, a cylindrical screen disposed in said body, said screen having an open end and a closed end adjacent said closed end of said body, said body having a vent therein adjacent said open end, and means for supplying air into said body communicating with said vent.
Claim 4
Dependent Claim
96 words
An extruder output multiplier characterized by a cylindrical body having an open end and a perforated closed end opposite said open end, means on said body adjacent said open end for attachment of said body to an extruder, said body having a plurality of series of annularly spaced apertures therethrough, a cylindrical screen disposed in said body, said screen having an open end and a closed end adjacent said closed end of said body, said body having a vent therein adjacent said open end, and means for supplying air into said body communicating with said vent.
Claim 5
Dependent Claim
34 words
An extruder output multiplier according to claim 1, wherein the length of said body is not less than one half the diameter of said body nor more than twice the diameter of said body.
Claim 6
Dependent Claim
26 words
An extruder output multiplier according to claim 2. wherein each series of apertures are of increasing dimensions as the distance thereof from said open end increases.
Claim 7
Dependent Claim
15 words
An extruder output multiplier according to claim 1, wherein said screen is of wire mesh.
Claim 8
Dependent Claim
45 words
An extruder output multiplier according to claim 2, wherein said screen is a perforated metallic sheet with small circular openings from 0.2 to 2 mm in diameter, instead of a wire net screen. The thickness of the perforated sheet ranges from 0.2 to 2 mm.
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) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |