US3272850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deodorization of lanolin and lanolin derivatives
Assignee: Malmstrom Chemical Corp
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Filing: 1963-06-14
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Granted: 1966-09-13
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Expires: 1983-06-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas B Richey
- 👤 Conrad J Sunde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:45
CPC Classifications
C; C11; C11B; C11B11/00; C11B11/005; A; A61; A61K; A61K8/00; A61K8/18; A61K8/92; A61K8/925; A61Q; A61Q19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A PROCESS FOR DEODORIZING A LANOLIN MATERIAL SELECTED FROM THE GROUP CONSISTING OF LANOLIN, LANOLIN OIL, WOOL WAX ALCOHOLS, LANOLIN WAX FRACTIONS, ETHOXYLATES OF EACH OF THE FOREGOING, AND ESTERIFIED LANOLINS, WHICH COMPRISES CONTINUOUSLY FEEDING SAID LANOLIN MATERIAL INTO CONTACT WITH THE INNER WALL OF A HEATED JACKET, CAUSING THE FEED MATERIAL TO FLOW DOWNWARDLY ALONG THE SURFACE OF SAID WALL TO BE HEATED THEREBY WHILE IN THE FORM OF A WIPED FILM OF RELATIVELY MINUTE THICKNESS, SAID FILM BEING FORMED BY A WIPING ACTION WHICH IMPARTS TURBULENCE TO SAID FILM AND CAUSES IT TO SPIRAL AS ITS FLOWS DOWNWARDLY ALONG SAID SURFACE, SUBJECTING SAID FILM TO A VACUUM IN THE RANGE OF FROM 0.5 TO 100 MM. MERCURY ABSOLUTE WHILE THUS HEATED, AND SIMULTANEOUSLY SUBJECTING THE THUS HEATED FILM TO THE ACTION OF A COUNTERCURRENT FLOW OF STEAM.
Claim 2
Dependent Claim
139 words
A PROCESS FOR DEODORIZING A LANOLIN MATERIAL SELECTED FROM THE GROUP CONSISTING OF LANOLIN, LANOLIN OIL, WOOL WAX ALCOHOLS, LANOLIN WAX FRACTIONS, ETHOXYLATES OF EACH OF THE FOREGOING, AND ESTERIFIED LANOLINS, WHICH COMPRISES CONTINUOUSLY FEEDING SAID LANOLIN MATERIAL INTO CONTACT WITH THE INNER WALL OF A HEATED JACKET, CAUSING THE FEED MATERIAL TO FLOW DOWNWARDLY ALONG THE SURFACE OF SAID WALL TO BE HEATED THEREBY WHILE IN THE FORM OF A WIPED FILM OF RELATIVELY MINUTE THICKNESS, SAID FILM BEING FORMED BY A WIPING ACTION WHICH IMPARTS TURBULENCE TO SAID FILM AND CAUSES IT TO SPIRAL AS ITS FLOWS DOWNWARDLY ALONG SAID SURFACE, SUBJECTING SAID FILM TO A VACUUM IN THE RANGE OF FROM 0.5 TO 100 MM. MERCURY ABSOLUTE WHILE THUS HEATED, AND SIMULTANEOUSLY SUBJECTING THE THUS HEATED FILM TO THE ACTION OF A COUNTERCURRENT FLOW OF STEAM.
References Cited (Backward Citations)
US1498389A
Cited
US1622126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |