Patent US4249975A successfully refreshed from Google Patents.
US4249975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of manufacturing artificial breasts
Assignee: AMOENA Corp (1987) A CORP OF GEORGIA
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Filing: 1979-05-21
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Granted: 1981-02-10
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Expires: 1999-05-21
Abstract
Abstract A process for manufacturing artificial breasts uses a two-component silicone rubber composition capable of a cross linking addition reaction, has cups sheathed by plastic sheeting layers initially joined by welding except for one opening through which the silicone composition is introduced under pressure and then the composition is vulcanized and the opening closed by welding.
Inventors
- 👤 Cornelius Rechenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:06
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/02; B29C43/20; B29C43/203; B29C43/206; A; A61; A61F; A61F2/00; A61F2/50; A61F2/52; B29C43/003; A61F2/5044; B29L; B29L2031/00; B29L2031/753; B29L2031/7532
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
204 words
A process of manufacturing an artificial breast consisting of a shell-like body which is similar in shape to the breast and consists of an addition cross-linking two-component silicone rubber composition and is enclosed in plastic material sheeting layers joined by welding, in which process a sheath of the artificial breast is formed by welding two flat layers of plastic material sheeting, except for a filling opening, along an edge which is to form the edge of the artificial breast, said layers are releasably fixed adjacent to the welded edge to the edge of the cavity in an open lower mold part of a two-part mold, of a breast which has an internal cavity that conforms to the contour of the artificial breast, the two-component silicone rubber composition is charged in a predetermined quantity which corresponds to the volume of the mold cavity through the charging opening left in the welded edge into the sheath formed by the layers of plastic material sheeting while the lower mold part is at least partially open to provide to the charged sheath and thereafter the lower mold part is finally closed by the upper mold part and the composition is subjected to the vulcanizing treatment in the mold.
Claim 2
Dependent Claim
204 words
A process of manufacturing an artificial breast consisting of a shell-like body which is similar in shape to the breast and consists of an addition cross-linking two-component silicone rubber composition and is enclosed in plastic material sheeting layers joined by welding, in which process a sheath of the artificial breast is formed by welding two flat layers of plastic material sheeting, except for a filling opening, along an edge which is to form the edge of the artificial breast, said layers are releasably fixed adjacent to the welded edge to the edge of the cavity in an open lower mold part of a two-part mold, of a breast which has an internal cavity that conforms to the contour of the artificial breast, the two-component silicone rubber composition is charged in a predetermined quantity which corresponds to the volume of the mold cavity through the charging opening left in the welded edge into the sheath formed by the layers of plastic material sheeting while the lower mold part is at least partially open to provide to the charged sheath and thereafter the lower mold part is finally closed by the upper mold part and the composition is subjected to the vulcanizing treatment in the mold.
Claim 3
Dependent Claim
52 words
A process according to claim 1, characterized in that the charging of the two-component silicone rubber composition in a quantity which corresponds to the volume of the mold cavity into the sheath formed by the welded sheeting layers is effected by two separately controlled pumps, which supply respective components of the composition.
Claim 4
Dependent Claim
23 words
A process according to claim 1, characterized in that the charging opening left in the welded edge is welded by the vulcanizing heat.
Claim 5
Dependent Claim
30 words
A process according to claim 1, characterized in that the air for heating the mold is circulated in the oven in which the mold is placed to cure the composition.
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) | 1984-02-10 | 1984-08-11 | 1985-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-10 | 1988-08-11 | 1989-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-10 | 1992-08-11 | 1993-02-10 | $7700.00 | Window Closed / Lapsed |