US4201743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making soap bars
Assignee: Colgate Palmolive Co
•
Filing: 1977-08-04
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Granted: 1980-05-06
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Expires: 1997-08-04
Abstract
Abstract Soap bars having indicia extending between, and visible on opposing major faces, and process and apparatus for producing same, is disclosed. The indicia forming material is preferably a soap material having physical and chemical characteristics, except for coloration, similar to those of the base soap material making up the soap bar. The indicia material is extruded through indicia forming dies into the base soap mass immediately prior to the plodder nozzle which rough forms the final soap bar.
Inventors
- 👤 Guilio Perla
- 👤 Alessandro D'Arcangeli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:11
CPC Classifications
C; C11; C11D; C11D13/00; C11D13/14; C11D13/18
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
228 words
A method of producing soap bars having indicia incorporated therein comprising; supplying a first flow of base soap material through the barrel of a plodder and towards a plodder nozzle; discharging a second flow of an insert soap material thru an indicia forming die within said barrel; said insert soap material having substantially the same physical. characteristics including beta phase content as said base soap material mechanically working said base soap material through a plurality of tubular members having a predetermined inside diameter and a plurality of orifices having a diameter substantially smaller than said predetermined diameter to resuit in a beta phase content in said base soap material greater than 50% by weight, mechanically working said insert soap material through a plodder and said indicia forming die to result in a beta phase content of greater than 50% by weight, said insert soap material being discharged into the body of said base soap material as said base soap material enters said plodder nozzle, said second flow being in the same direction and at substantially the same rate as said first flow; extruding said base soap material through said plodder nozzle to form a continuous log of soap, said extruding step imparting an extrusion grain to said log of soap, and cutting said continuous log of soap into segments equal to the desired thickness of said soap bars.
Claim 2
Independent Claim
228 words
A method of producing soap bars having indicia incorporated therein comprising; supplying a first flow of base soap material through the barrel of a plodder and towards a plodder nozzle; discharging a second flow of an insert soap material thru an indicia forming die within said barrel; said insert soap material having substantially the same physical. characteristics including beta phase content as said base soap material mechanically working said base soap material through a plurality of tubular members having a predetermined inside diameter and a plurality of orifices having a diameter substantially smaller than said predetermined diameter to resuit in a beta phase content in said base soap material greater than 50% by weight, mechanically working said insert soap material through a plodder and said indicia forming die to result in a beta phase content of greater than 50% by weight, said insert soap material being discharged into the body of said base soap material as said base soap material enters said plodder nozzle, said second flow being in the same direction and at substantially the same rate as said first flow; extruding said base soap material through said plodder nozzle to form a continuous log of soap, said extruding step imparting an extrusion grain to said log of soap, and cutting said continuous log of soap into segments equal to the desired thickness of said soap bars.
Claim 3
Dependent Claim
37 words
The method of claim 1 wherein said insert soap material is continuously discharged into the body of said base soap material whereby said indicia extends between and is visible on opposing major faces of said soap bars.
Claim 4
Dependent Claim
126 words
In the method of incorporating indicia into the body of a soap bar, including the steps of introducing an indicia forming soap material into a base soap material before the base soap material is extruded into said soap bar, the improvement comprising mechanically working the base soap material prior to said introduction of the indicia forming soap material and subsequent to plodding sufficiently to result in a beta phase greater than 50% by weight, and mechanically working the indicia forming soap material prior to introduction into said base soap material to result in a beta phase content in said indicia forming soap material of greater than 50% by weight, said indicia forming material being soap having substantially the same physical characteristics as said base soap material.
Claim 5
Dependent Claim
126 words
In the method of incorporating indicia into the body of a soap bar, including the steps of introducing an indicia forming soap material into a base soap material before the base soap material is extruded into said soap bar, the improvement comprising mechanically working the base soap material prior to said introduction of the indicia forming soap material and subsequent to plodding sufficiently to result in a beta phase greater than 50% by weight, and mechanically working the indicia forming soap material prior to introduction into said base soap material to result in a beta phase content in said indicia forming soap material of greater than 50% by weight, said indicia forming material being soap having substantially the same physical characteristics as said base soap material.
Claim 6
Dependent Claim
47 words
The improved method of claim 3 wherein said mechanical working of said base soap material includes successively forcing said base soap material through a plurality of tubular members having a predetermined inside diameter and a plurality of orifices having a diameter substantially smaller than said predetermined diameter.
Claim 7
Dependent Claim
31 words
The improved method of claim 3 wherein said indicia forming material is introduced into the body of soap material immediately before said base soap material is extruded into said soap bar.
Claim 8
Dependent Claim
35 words
The improved method of claim 3 wherein said indicia forming soap is mechanically worked through a plodder and an indicia forming die to result in a beta phase content of greater than 50% by weight.
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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) | 1983-05-06 | 1983-11-05 | 1984-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-06 | 1987-11-05 | 1988-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-06 | 1991-11-05 | 1992-05-06 | $7700.00 | Window Closed / Lapsed |