Patent USRE23704E successfully refreshed from Google Patents.
Patent US4517085A successfully refreshed from Google Patents.
US4517085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filtration devices
Assignee: EMD Millipore Corp
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Filing: 1983-09-15
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Granted: 1985-05-14
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Expires: 2003-09-15
Abstract
Abstract An interconnector 22 for filtration modules 18 which have axially extending tubes 90. The interconnector 22 is a rigid tubular member having conical tapered portion 88 at opposite ends to join fluid tight connections with the filtration modules.
Inventors
- 👤 Michael A. Driscoll
- 👤 James H. Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:05
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/02; B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/17; B01D29/21; B01D29/216; B01D29/50; B01D29/52; B01D29/54; B01D63/00; B01D63/10; B01D63/12; B01D65/00; B01D2201/00; B01D2201/40; B01D2201/4084
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
92 words
A removal interconnector for joining filtration modules which have axially extending tubes, said interconnector comprising a rigid tubular member having conical externally tapered portions at opposite ends to form fluid tight connections with the inner diameters of the tubes of two adjacent filtration modules when the interconnector is inserted into the tubes, the open ends of the tubular interconnector being chamfered internally and forming an acute angle and a linear anular intersection with the inner diameters of the filtrate tubes to permit an unrestricted flow of fluid between two adjacent filtration modules.
Claim 2
Dependent Claim
92 words
A removal interconnector for joining filtration modules which have axially extending tubes, said interconnector comprising a rigid tubular member having conical externally tapered portions at opposite ends to form fluid tight connections with the inner diameters of the tubes of two adjacent filtration modules when the interconnector is inserted into the tubes, the open ends of the tubular interconnector being chamfered internally and forming an acute angle and a linear anular intersection with the inner diameters of the filtrate tubes to permit an unrestricted flow of fluid between two adjacent filtration modules.
Claim 3
Dependent Claim
23 words
The interconnector of claim 1 in which the conical externally tapered portions are formed with an included angle of less than eight degrees.
Claim 4
Dependent Claim
30 words
The interconnector of claim 1 in which there are parallel external flats between the conical externally tapered portions to facilitate insertion into and removal from the tubes of the modules.
Claim 5
Dependent Claim
13 words
The interconnector of claim 1 being formed of a solid substantially inelastic material.
Claim 6
Dependent Claim
144 words
A filtration apparatus comprising: a pressure vessel, a plurality of spiral wound filtration modules serially arranged within the vessel, each module including a filtration membrane wound around a filtrate collection tube having conical internally tapered portions at each end, retaining means secured to each collection tube and engageable with the filtration membrane, and means for removably connecting adjacent filtration modules comprising, an interconnector comprising a rigid tubular member having conical externally tapered portions at opposite ends to form fluid tight connections with the conical internally tapered portions of the tubes of two adjacent filtration modules when the interconnector is inserted into the tubes, the open ends of the tubular interconnector being chamfered internally and forming an acute angle and a linear anular intersection with the internally tapered portions of the filtrate tubes to permit an unrestricted flow of fluid between two adjacent filtration modules.
Claim 7
Dependent Claim
144 words
A filtration apparatus comprising: a pressure vessel, a plurality of spiral wound filtration modules serially arranged within the vessel, each module including a filtration membrane wound around a filtrate collection tube having conical internally tapered portions at each end, retaining means secured to each collection tube and engageable with the filtration membrane, and means for removably connecting adjacent filtration modules comprising, an interconnector comprising a rigid tubular member having conical externally tapered portions at opposite ends to form fluid tight connections with the conical internally tapered portions of the tubes of two adjacent filtration modules when the interconnector is inserted into the tubes, the open ends of the tubular interconnector being chamfered internally and forming an acute angle and a linear anular intersection with the internally tapered portions of the filtrate tubes to permit an unrestricted flow of fluid between two adjacent filtration modules.
Claim 8
Dependent Claim
18 words
The interconnecting means of claim 5 in which the interconnector is formed of a solid, substantially ineslastic material.
Claim 9
Dependent Claim
23 words
The apparatus of claim 5 in which the conical externally tapered portions are formed with an included angle of less than eight degrees.
Claim 10
Dependent Claim
18 words
The apparatus of claim 5 in which the removable interconnector is formed of a solid, substantially inelastic material.
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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) | 1988-05-13 | 1988-11-12 | 1989-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-13 | 1992-11-12 | 1993-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-13 | 1996-11-12 | 1997-05-14 | $7700.00 | Window Closed / Lapsed |