US3592445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gelatin dip pot
Assignee: Smith Kline & French Laboratories Ltd
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Filing: 1968-11-26
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Granted: 1971-07-13
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Expires: 1988-11-26
Abstract
Abstract A conventional gelatin dip pot for making capsules having a dip tank suspended in a reservoir tank and a gear pump drawing from along the length of the reservoir tank to supply the dip tank is provided with means having a single inlet opening to provide for the supply of gelatin from a single location in the reservoir tank and is provided with longitudinal helical mixing paddles mounted in the reservoir tank along side the dip tank.
Inventors
- 👤 Alten E Whitecar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:24
CPC Classifications
A; A61; A61J; A61J3/00; A61J3/07; A61J3/071; A61J3/077
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
116 words
In a gelatin dip pot for making capsules having: a reservoir tank, a dip tank suspended in the reservoir tank, a housing extending along the bottom of the dip tank, first passage means interconnecting a substantial portion of the bottom of the dip tank with the interior of the housing, second passage means along the bottom of the housing interconnecting the interior and exterior of the housing and, pump means to pull liquid through the second mentioned passage means and pump it through the first mentioned passage means into the dip tank. The improvement comprising: manifold means attached to the bottom of said housing, communicating with the second passage means and having a single inlet opening.
Claim 2
Dependent Claim
116 words
In a gelatin dip pot for making capsules having: a reservoir tank, a dip tank suspended in the reservoir tank, a housing extending along the bottom of the dip tank, first passage means interconnecting a substantial portion of the bottom of the dip tank with the interior of the housing, second passage means along the bottom of the housing interconnecting the interior and exterior of the housing and, pump means to pull liquid through the second mentioned passage means and pump it through the first mentioned passage means into the dip tank. The improvement comprising: manifold means attached to the bottom of said housing, communicating with the second passage means and having a single inlet opening.
Claim 3
Dependent Claim
25 words
The device of claim 1 in which the first passage means comprises a plurality of passages with walls therebetween each tapered to a narrow top.
Claim 4
Dependent Claim
25 words
The device of claim 2 in which the first passage means comprises a plurality of passages with walls therebetween each tapered to a narrow top.
Claim 5
Dependent Claim
29 words
The device of claim 1 in which the dip pot has sloping guide strips on each outer end to direct overflowing gelatin to the center of the reservoir tank.
Claim 6
Dependent Claim
30 words
The device of claim 1 having a helical mixing paddle mounted longitudinally in the reservoir tank along each side of the dip tank, and means to rotate each mixing paddle.
Claim 7
Dependent Claim
19 words
The device of claim 5 in which the paddles are rotated at from about 150 to about 275 r.p.m.
Claim 8
Dependent Claim
25 words
The device of claim 5 in which the first passage means comprises a plurality of passages with walls therebetween each tapered to a narrow top.
Claim 9
Dependent Claim
29 words
The device of claim 5 in which the dip pot has sloping guide strips on each outer end to direct overflowing gelatin to the center of the reservoir tank.
References Cited (Backward Citations)
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Cited
US1916885A
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US1977052A
Cited
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Cited
US2504337A
Cited
US2584225A
Cited
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Cited
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Cited
GB741532A
Cited
US2991870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |