Patent US3673294A successfully refreshed from Google Patents.
US3673294A
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US
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Method for the manufacture of marbleized soap bars
Assignee: Lever Brothers Co
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Filing: 1969-10-02
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Granted: 1972-06-27
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Expires: 1989-10-02
Abstract
Abstract The manufacture of marbleized toilet bars is accomplished by preparing two or more differently colored batches of soap or detergent particles, the soap or detergent compositions used all having approximately the same viscosity and plasticity. The particles range from three-sixteenths to three inches in diameter and from three-sixteenths to seven inches long. Approprirate proportions of pellets are subsequently charged into a vacuum chamber and extruded in the form of a continuous log which is cut and stamped into individual soap bars.
Inventors
- 👤 Raymond George Matthaei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:52
CPC Classifications
C; C11; C11D; C11D13/00; C11D13/14; C11D13/18; B; B29; B29C; B29C48/00; B29C48/16; B29C48/17; B29C48/175; C11D13/08; B29C48/03; B29C48/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
206 words
An extrusion process for the manufacture of marbleized soap comprising the steps of providing at least two batches of different colored soap compositions with no more than 98 percent by weight of any one respective composition, each composition having essentially the same viscosity, the water content in each respective composition being no greater than 26 percent by weight wherein said water content in the respective batches of soap does not differ by more than 4 percent, each composition having essentially the same plasticity as measured by penetrometer readings of the respective compositions which do not differ by more than 10 millimeters at the extrusion temperature, extruding each of said compositions through a first plodder having a discharge plate, thereby forming pellets of soap of the said respective colors having a diameter in the range of three-sixteenths inch to 3 inches, combining said different colored pellets in a chamber wherein the temperature of the pellets should range between 50* to 130* F., extruding said combined pellets of soap from said chamber through a second plodder having a nozzle with an orifice of suitable shape for forming a log having a marbleized pattern of at least two different colors, and thereafter cutting said log to form soap bars.
Claim 2
Dependent Claim
36 words
An extrusion process for the manufacture of soap as in claim 2 wherein the temperature of said extruded bar of marbleized soap after passing through the second plodder does not increase by more than 65* F.
Claim 3
Dependent Claim
31 words
An extrusion process for the manufacture of soap as in claim 2 wherein said pellets of soap have a length in the range of three-sixteenths of an inch to 7 inches.
Claim 4
Dependent Claim
29 words
An extrusion process for the manufacture of soap as in claim 2 wherein said chamber and said second plodder are evacuated with said discharge plate forming a vacuum seal.
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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |