US3779676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making composite product
Assignee: Individual
•
Filing: 1971-10-14
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Granted: 1973-12-18
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Expires: 1991-10-14
Abstract
Abstract An extruding machine and process is provided for making composite products, such as soap, that comprise two separate materials joined without mixing. The extruder is comprised of a pair of circular plates and annular plates. The circular plates are joined together by a plurality of tubular members. The annular plates have conduits and radial fins for directing the two separate materials along an axial direction. A cutter and mold are provided for producing the finished product such as striped soap.
Inventors
- 👤 A Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:04
CPC Classifications
C; C11; C11D; C11D13/00; C11D13/14; C11D13/18; A; A23; A23G; A23G3/00; A23G3/02; A23G3/20; A23G3/2007; A23G3/2015; B; B29; B29C; B29C48/00; B29C48/16; B29C48/17; B29C48/18; B29C48/19; B29C48/20; B29C48/03; B29C48/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
39 words
An apparatus as defined in claim 1, further including between the first annular plate and the sleeve, a second annular plate having internal open channels corresponding alternately to the radial apertures and the radial recesses of the first plate.
Claim 2
Dependent Claim
42 words
An apparatus as defined in claim 2, wherein two of the open channels carrying the first material and positioned opposite one another are widened for preventing adjacent stripes of the two materials from coming together when the composite material is subsequently molded.
Claim 3
Dependent Claim
95 words
An apparatus as defined in claim 2, wherein said chamber comprises two circular discs fitted together in a cylindrical housing, one of the discs being the end plate, spaced apart from each other by the tubular members which act as cross-pieces and are arranged in a circle around the extrusion axis, the cylindrical housing having a supply inlet for the second material located between the discs, the second group of holes in the end plate disc being arranged in a circle around the extrusion axis and positioned radially in intermediate locations between the tubular members.
Claim 4
Dependent Claim
43 words
An apparatus as defined in claim 4, wherein the holes of the first and second hole groups are of different diameters to prevent the soap material from becoming sleeky or glazed and to compensate for the pressure differences between the various extruded materials.
Claim 5
Dependent Claim
140 words
An apparatus as defined in claim 5, wherein the sleeve comprises two parts in the shape of a truncated grooved cone which are assembled together, the first part having a large internal diameter at its inlet end adjacent the annular plate and having longitudinal grooves with low depth and parallel edges positioned in register with the recesses and apertures of the annular plate, the width at the bottom of such grooves corresponding substantially to the width at the bottom of the recesses and apertures, the large diameter inlet end of the second part being secured to the outlet end of the first part, the second part having a conicity which is greater than that of the first part and having longitudinal grooves with converging edges, the position and the depth of which correspond to the grooves in the first part.
Claim 6
Dependent Claim
55 words
An apparatus as defined in claim 4, wherein each of the discs has a cylindrical-conical shaped member at its center axially aligned with the extrusion axis, the member held by the end plate disc passing through the first annular plate with its cylindrical portion and passing through the second annular plate with its conical portion.
Claim 7
Dependent Claim
35 words
An apparatus as defined in claim 2, wherein the chamber, the two annular plates and the sleeve have on their associated faces circular slots for o-rings and are compressively joined together in a detachable manner.
Claim 8
Dependent Claim
54 words
An apparatus as defined in claim 1, further comprising a cutting device operatively positioned adjacent the outlet of the sleeve for separating the composite bar into discrete increments, and a molding device operatively positioned after the cutting device and having an upper part and a lower part oriented with respect to the extrusion axis.
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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |