US4775629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for processing fluids
Assignee: EIDP Inc
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Filing: 1987-05-05
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Granted: 1988-10-04
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Expires: 2007-05-05
Abstract
Abstract A cartridge is formed of two parts which form an outlet valve at the lower end. The valve is opened or closed by relative rotation of the parts.
Inventors
- 👤 Ernest B. Kuhl
- 👤 George R. Long
- 👤 Juleen A. Mitchell
- 👤 Richard S. Jenkins
- 👤 Henry R. Wolfe, Jr.
- 👤 Gerard F. Malone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:18
CPC Classifications
C; C07; C07K; C07K1/00; C07K1/04; C07K1/045; B; B01; B01J; B01J19/00; B01J19/0046; B01J2219/00; B01J2219/00274; B01J2219/00277; B01J2219/00279; B01J2219/00281; B01J2219/00286; B01J2219/00288; B01J2219/00306; B01J2219/00308; B01J2219/0031; B01J2219/00351; B01J2219/00414; B01J2219/00416; B01J2219/00479; B01J2219/00484; B01J2219/00497; B01J2219/005; B01J2219/00583; B01J2219/00585; B01J2219/0059; B01J2219/00596; B01J2219/00718; B01J2219/0072; B01J2219/00725; C40; C40B; C40B40/00; C40B40/04; C40B40/10; C40B60/00; C40B60/14
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
186 words
An apparatus for processing fluids having a cartridge with an enlarged middle portion adapted to receive support particles and a tubular lower portion communicating with the middle portion and having an outlet at its bottom end, the middle portion being tapered inward toward its lower end to join the lower portion of the cartridge, and a closure member insertable into the top end of the cartridge having a longitudinal axis, the improvement wherein: the insert is cylindrical, annularly fits over the lower portion, and has a discharge tip at its lower end, the tubular portion and insert being in frictional rotational engagement, each defining radial passageways which may be aligned by relative rotation therebetween about the cartridge axis to provide a fluid path between the cartridge lower portion and the discharge tip of the insert, the insert including an exterior cylindrical portion annularly disposed relative to the insert and secured by a radial web to the lower end of the insert the cartridge lower portion and insert lower end each being defined by inwardly tapered mating tubes, the passageways being located along the taper of each.
Claim 2
Independent Claim
186 words
An apparatus for processing fluids having a cartridge with an enlarged middle portion adapted to receive support particles and a tubular lower portion communicating with the middle portion and having an outlet at its bottom end, the middle portion being tapered inward toward its lower end to join the lower portion of the cartridge, and a closure member insertable into the top end of the cartridge having a longitudinal axis, the improvement wherein: the insert is cylindrical, annularly fits over the lower portion, and has a discharge tip at its lower end, the tubular portion and insert being in frictional rotational engagement, each defining radial passageways which may be aligned by relative rotation therebetween about the cartridge axis to provide a fluid path between the cartridge lower portion and the discharge tip of the insert, the insert including an exterior cylindrical portion annularly disposed relative to the insert and secured by a radial web to the lower end of the insert the cartridge lower portion and insert lower end each being defined by inwardly tapered mating tubes, the passageways being located along the taper of each.
Claim 3
Dependent Claim
31 words
The apparatus as set forth in claim 1 wherein the passageway in the insert is defined by a longitudinal groove in the interior wall of insert communicating with the discharge tip.
Claim 4
Independent Claim
187 words
An apparatus for processing fluids having a cartridge with an enlarged middle portion adapted to receive support particles and a tubular lower portion communicating with the middle portion and having an outlet at its bottom end, the middle portion being tapered inward toward its lower end to join the lower portion of the cartridge, and a closure member insertable into the top end of the cartridge having a longitudinal axis, the improvement wherein: the insert is cylindrical, annularly fits over the lower portion, and has a discharge tip at its lower end, the tubular portion and insert being in frictional rotational engagement, each defining radial passageways which may be aligned by relative rotation therebetween about the cartridge axis to provide a fluid path between the cartridge lower portion and the discharge tip of the insert, the insert including an exterior cylindrical portion annularly disposed relative to the insert and secured by a radial web to the lower end of the insert, the cartridge lower portion and insert lower end each being defined by tubes with mating inward tapers, the passageways being located along the taper of each.
Claim 5
Independent Claim
187 words
An apparatus for processing fluids having a cartridge with an enlarged middle portion adapted to receive support particles and a tubular lower portion communicating with the middle portion and having an outlet at its bottom end, the middle portion being tapered inward toward its lower end to join the lower portion of the cartridge, and a closure member insertable into the top end of the cartridge having a longitudinal axis, the improvement wherein: the insert is cylindrical, annularly fits over the lower portion, and has a discharge tip at its lower end, the tubular portion and insert being in frictional rotational engagement, each defining radial passageways which may be aligned by relative rotation therebetween about the cartridge axis to provide a fluid path between the cartridge lower portion and the discharge tip of the insert, the insert including an exterior cylindrical portion annularly disposed relative to the insert and secured by a radial web to the lower end of the insert, the cartridge lower portion and insert lower end each being defined by tubes with mating inward tapers, the passageways being located along the taper of each.
Claim 6
Dependent Claim
24 words
The apparatus as set forth in claim 3 wherein the cartridge defines a radial tab located at the radial position of the cartridge passageway.
Claim 7
Dependent Claim
24 words
The apparatus as set forth in claim 4 wherein the insert defines a radial tab located at the radial position of the insert passageway.
Claim 8
Dependent Claim
26 words
The apparatus as set forth in claim 4 wherein the cartridge lower portion defines a raised, exterior annular ring adapted more tightly to engage the insert.
Claim 9
Dependent Claim
30 words
The apparatus as set forth in claim 6 wherein the inside of the insert defines an interior annular groove adapted to engage the cartridge ring to provide a good seal.
Claim 10
Dependent Claim
24 words
The apparatus as set forth in claim 3 wherein the insert defines a radial tab located at the radial position of the insert passageway.
Claim 11
Dependent Claim
24 words
The apparatus as set forth in claim 8 wherein the closure member is integrally formed in a sheet containing additional closure members formed therein.
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) | 1991-10-04 | 1992-04-04 | 1992-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-04 | 1996-04-04 | 1996-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-04 | 2000-04-04 | 2000-10-04 | $7700.00 | Window Closed / Lapsed |