Patent US3676538A successfully refreshed from Google Patents.
US3676538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for soap bars having marble-like decoration
Assignee: Purex Corp Ltd
•
Filing: 1970-02-04
•
Granted: 1972-07-11
•
Expires: 1990-02-04
Abstract
Abstract Method of producing marble-like appearance in a soap bar in which a saponaceous dye solution having color contrast with the soap of the bar is injected through a screw end opening in a plodder screw and is distributed through a soap mass being extruded in a manner producing contrasting color streaks therethrough subdued at their boundaries for indistinct mergence with the extruded mass.
Inventors
- 👤 Charles B Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:27
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; Y; Y10; Y10S; Y10S159/00; Y10S159/14
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
19 words
Method according to claim 1 including injecting a saponaceous colorant solution into the soap mass as said colorant fluid.
Claim 2
Dependent Claim
30 words
Method according to claim 1 including displacing colorant fluid from its injection locus as a coherent stream in the soap mass moving between said injection opening and said pressure plate.
Claim 3
Dependent Claim
21 words
Method according to claim 1 including also arranging the pressure plate apertures in a manner to preferentially distribute colorant fluid therethrough.
Claim 4
Dependent Claim
25 words
Method according to claim 1 including also rotating said feed inlet with the screw in a locus less than 0.75 inch from said pressure plate.
Claim 5
Dependent Claim
38 words
Method according to claim 1 including also two sets of different diameter apertures in the pressure plate and passing successive portions said soap mass with dye solution therein alternately through apertures of one or another of said sets.
Claim 6
Dependent Claim
28 words
Method according to claim 1 including adding colorant fluid to the soap mass in an amount equal to between 0.1 and 10 percent of the soap mass weight.
Claim 7
Dependent Claim
30 words
Method according to claim 2 including also dissolving from 2 to 25 percent by weight of soap in said colorant solution prior to injecting the solution into said soap mass.
Claim 8
Dependent Claim
29 words
Method according to claim 1 in which said colorant fluid is introduced into the soap mass from said opening along a circular locus uniformly spaced from said pressure plate.
Claim 9
Dependent Claim
43 words
Method according to claim 9 including also injecting a saponaceous dye solution containing from 2 to 25 percent by weight of soap into said soap mass in an amount equal to between 0.1 and 10 percent of the weight of the soap mass.
Claim 10
Dependent Claim
45 words
Method according to claim 1 including also longitudinally distributing said colorant fluid through the soap mass downstream of said pressure plate generally parallel to the axis of said convergent outlet by the convergent movement of the soap mass containing said fluid passing through said outlet.
Claim 11
Dependent Claim
23 words
Method according to claim 1 including maintaining a series of apertures downstream from the locus of coloranT fluid injection into the soap mass.
Claim 12
Dependent Claim
42 words
Method according to claim 1 in which said inlet introduces said saponaceous dye solution into the soap mass along a circular locus concentric with the screw axis and having a radius equal to between 35 and 65 percent of the screw radius.
Claim 13
Dependent Claim
21 words
Method according to claim 1 in which said saponaceous dye solution is introduced intermittently into the soap mass from said inlet.
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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |