US5505591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for processing materials
Assignee: EIDP Inc
•
Filing: 1994-09-28
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Granted: 1996-04-09
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Expires: 2014-09-28
Abstract
Abstract An apparatus for processing materials, such as mixing or homogenizing fluids or dispersing a fluid in a viscous material, comprises a housing having bores and at least one inlet port and an outlet port disposed in the housing and in fluid communication with the bores. A pressure mechanism is disposed outside the housing and is in communication with the inlet port for introducing the materials under pressure to the bore and for forcing the materials through the bores to the outlet port. A rotor is disposed in each bore. The rotors do not contact each other. Each rotor has teeth, and the teeth of one rotor mesh with the teeth of an adjacent rotor so that the materials are squeezed in the space between two adjacent teeth of one rotor and the meshing tooth of the other rotor to impart stretching flow to the materials and to expel the materials from the interstices between the teeth of the one rotor and the other rotor.
Inventors
- 👤 Daniel G. Tynan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:56
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/46; B29B7/48; B29B7/481; B01; B01F; B01F27/00; B01F27/60; B01F27/75; B01F27/755; B29B7/488; B29B7/489; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/365; B29C48/37
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
196 words
An apparatus for processing materials, comprising: (a) a housing having a plurality of bores; (b) at least one inlet port and an outlet port disposed in the housing, both the inlet port and the outlet port being in fluid communication with the bores; (c) means for moving the materials circumferentially in the bores without inducing net flow in the longitudinal direction from the inlet port to the outlet port, the moving means comprising a plurality of non-contacting, counter-rotating rotors each disposed in a respective bore in the housing, each rotor having a plurality of teeth, the teeth of one rotor meshing with the teeth of an adjacent rotor so that the materials are squeezed in the space between two adjacent teeth of one rotor and the meshing tooth of the other rotor to impart stretching flow to the materials and to expel the materials from the interstices between the teeth of one rotor and the other rotor; and (d) pressure means disposed outside the housing and in communication with the at least one inlet port for introducing the materials under pressure to the bores and for forcing the material through the bores to the outlet port.
Claim 2
Independent Claim
196 words
An apparatus for processing materials, comprising: (a) a housing having a plurality of bores; (b) at least one inlet port and an outlet port disposed in the housing, both the inlet port and the outlet port being in fluid communication with the bores; (c) means for moving the materials circumferentially in the bores without inducing net flow in the longitudinal direction from the inlet port to the outlet port, the moving means comprising a plurality of non-contacting, counter-rotating rotors each disposed in a respective bore in the housing, each rotor having a plurality of teeth, the teeth of one rotor meshing with the teeth of an adjacent rotor so that the materials are squeezed in the space between two adjacent teeth of one rotor and the meshing tooth of the other rotor to impart stretching flow to the materials and to expel the materials from the interstices between the teeth of one rotor and the other rotor; and (d) pressure means disposed outside the housing and in communication with the at least one inlet port for introducing the materials under pressure to the bores and for forcing the material through the bores to the outlet port.
Claim 3
Dependent Claim
18 words
The apparatus of claim 1, further including a drive assembly disposed outside the housing for driving the rotors.
Claim 4
Dependent Claim
29 words
The apparatus of claim 1, wherein the at least one inlet port comprises a plurality of inlet ports for staging the feeding of at least one of the materials.
Claim 5
Dependent Claim
10 words
The apparatus of claim 1, wherein the materials are polymers.
Claim 6
Dependent Claim
18 words
The apparatus of claim 1, further including a plurality of gears for synchronizing the rotation of the rotors.
Claim 7
Dependent Claim
22 words
The apparatus of claim 5, further including a first bearing mount and a second bearing mount each disposed axially adjacent the housing.
Claim 8
Dependent Claim
32 words
The apparatus of claim 6, wherein the first and second bearing mounts are cut for allowing for differential thermal expansion between the housing, the first and second bearing mounts and the gears.
Claim 9
Independent Claim
158 words
An apparatus for dispersing a fluid in a viscous material, comprising: (a) a housing having a plurality of bores; (b) an inlet port disposed in the housing in fluid communication with the bores; (c) an outlet port disposed in the housing in fluid communication with the bores; (d) pump means disposed outside the housing and in fluid communication with the inlet port for introducing both the fluid and the viscous material under pressure to the bores and for forcing the fluid and the materials through the bores to the outlet port; (e) means for moving the fluid and the materials circumferentially in the bores without inducing net flow in the longitudinal direction from the inlet port to the outlet port, the moving means comprising a pair of non-contacting, counter-rotating rotors each disposed in a respective bore in the housing; and; (f) a drive assembly disposed outside the housing for driving the rotors in synchronization in opposite rotational directions.
Claim 10
Independent Claim
158 words
An apparatus for dispersing a fluid in a viscous material, comprising: (a) a housing having a plurality of bores; (b) an inlet port disposed in the housing in fluid communication with the bores; (c) an outlet port disposed in the housing in fluid communication with the bores; (d) pump means disposed outside the housing and in fluid communication with the inlet port for introducing both the fluid and the viscous material under pressure to the bores and for forcing the fluid and the materials through the bores to the outlet port; (e) means for moving the fluid and the materials circumferentially in the bores without inducing net flow in the longitudinal direction from the inlet port to the outlet port, the moving means comprising a pair of non-contacting, counter-rotating rotors each disposed in a respective bore in the housing; and; (f) a drive assembly disposed outside the housing for driving the rotors in synchronization in opposite rotational directions.
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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) | 1999-04-09 | 1999-10-09 | 2000-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-09 | 2003-10-09 | 2004-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-09 | 2007-10-09 | 2008-04-09 | $7700.00 | Window Closed / Lapsed |