US4485009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Granulation recovery device and method
Assignee: Ortho Pharmaceutical Corp
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Filing: 1983-01-17
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Granted: 1984-11-27
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Expires: 2003-01-17
Abstract
Abstract A granulation recovery device comprising a vacuum head, a canister removably attached to said vacuum head and a membrane and a support therefor which act as an interface between the vacuum head and the canister. The canister also contains means for diverting a granulation mixture away from the interface during operation of the device while simultaneously separating granulation from the granulation mixture. In operation, the device is attached to an exterior source of granulation loss.
Inventors
- 👤 Steve L. Csontos
- 👤 Charles L. Chamberlain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:07
CPC Classifications
B; B07; B07B; B07B7/00; B07B7/06; A; A61; A61J; A61J3/00; B07B9/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
101 words
A device for recovering granulation from a granulation mixture comprising a vacuum head assembly having an aperture at one end for attachment to a source of vacuum, a canister removably attached to said vacuum head assembly and a screen and a membrane which are detachably joined to said recovery device so as to form an interface between said vacuum head assembly and said canister, said canister containing means for diverting said granulation mixture away from said interface during operation while separating said granulation from said mixture and said means additionally containing an aperture for attachment to a source of granulation loss.
Claim 2
Independent Claim
101 words
A device for recovering granulation from a granulation mixture comprising a vacuum head assembly having an aperture at one end for attachment to a source of vacuum, a canister removably attached to said vacuum head assembly and a screen and a membrane which are detachably joined to said recovery device so as to form an interface between said vacuum head assembly and said canister, said canister containing means for diverting said granulation mixture away from said interface during operation while separating said granulation from said mixture and said means additionally containing an aperture for attachment to a source of granulation loss.
Claim 3
Dependent Claim
24 words
The device of claim 1 which additionally includes in the vacuum head assembly means for contracting and expanding the screen and membrane during operation.
Claim 4
Dependent Claim
12 words
The device of claim 1 wherein the contracting means is a spring.
Claim 5
Dependent Claim
21 words
The device of claim 1 wherein the diverting means contains a screen on the side facing the floor of the canister.
Claim 6
Dependent Claim
12 words
The device of claim 1 wherein the membrane is comprised of polytetrafluoroethylene.
Claim 7
Dependent Claim
21 words
The device of claim 1 wherein the vacuum head assembly is conical in shape and the canister is cylindrical in shape.
Claim 8
Independent Claim
102 words
A device for recovering granulation from a granulation mixture comprising a vacuum head assembly having an aperture at one end for attachment to a source of vacuum, a canister removably attached to said vacuum head assembly and a membrane and support therefor detachably joined to said recovery device so as to form an interface between said vacuum head assembly and said canister, said canister containing means for diverting said granulation mixture away from said interface during operation, while separating said granulation from said mixture and said means additionally containing an aperture at one end for attachment to a source of granulation loss.
Claim 9
Independent Claim
102 words
A device for recovering granulation from a granulation mixture comprising a vacuum head assembly having an aperture at one end for attachment to a source of vacuum, a canister removably attached to said vacuum head assembly and a membrane and support therefor detachably joined to said recovery device so as to form an interface between said vacuum head assembly and said canister, said canister containing means for diverting said granulation mixture away from said interface during operation, while separating said granulation from said mixture and said means additionally containing an aperture at one end for attachment to a source of granulation loss.
Claim 10
Dependent Claim
18 words
The device of claim 7 which additionally includes means for contracting and expanding the membrane and its support.
Claim 11
Dependent Claim
12 words
The device of claim 7 wherein the membrane is comprised of polytetrafluoroethylene.
Claim 12
Dependent Claim
21 words
The device of claim 7 wherein the vacuum head assembly is conical in shape and the canister is cylindrical in shape.
Claim 13
Dependent Claim
14 words
The device of claim 7 wherein the contracting means is a stainless steel spring.
Claim 14
Independent Claim
123 words
A method of recovering granulation from a granulation mixture which comprises directing a granulation mixture obtained from a source of granulation loss into a canister provided with a granulation diverting means for separating granulation from the granulation mixture, a vacuum head assembly and a membrane at the interface between the canister and the vacuum head assembly located above said diverting means, and applying vacuum to the system whereby air and granulation pass through the granulation diverting means allowing granulation to collect on the floor of said canister while the air and granulation light enough to be carried along with the air are drawn upwards toward the vacuum source through the membrane, said membrane being capable of trapping said light granulation on its surface.
Claim 15
Independent Claim
123 words
A method of recovering granulation from a granulation mixture which comprises directing a granulation mixture obtained from a source of granulation loss into a canister provided with a granulation diverting means for separating granulation from the granulation mixture, a vacuum head assembly and a membrane at the interface between the canister and the vacuum head assembly located above said diverting means, and applying vacuum to the system whereby air and granulation pass through the granulation diverting means allowing granulation to collect on the floor of said canister while the air and granulation light enough to be carried along with the air are drawn upwards toward the vacuum source through the membrane, said membrane being capable of trapping said light granulation on its surface.
References Cited (Backward Citations)
US749280A
Cited
US672299A
Cited
US1134022A
Cited
US1095037A
Cited
US1695383A
Cited
US2721656A
Cited
US3494460A
Cited
US4344843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-27 | 1988-05-28 | 1988-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-27 | 1992-05-28 | 1992-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-27 | 1996-05-28 | 1996-11-27 | $7700.00 | Window Closed / Lapsed |