US3889918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moulding of shells
Assignee: Individual
•
Filing: 1973-01-09
•
Granted: 1975-06-17
•
Expires: 1993-01-09
Abstract
Abstract The opposed molded plastics shells of a shell covered foamfilled structural member suitable for boat hulls and decks are connected by a strip of material extending between the shells and anchored in the foam-filling. Flaps are provided on the connector strip overlying the periphery of the plastics shells in sealing relation therewith. The flaps can be provided on a separate strip with a tongue seated in a recess of the strip anchored in the foam. The connector strip has an outer edge portion secured in the parting line of molds carrying the shells and providing a cavity for the foam which is severed from the connector strip after removal from the molds.
Inventors
- 👤 Helmut Stoeberl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:16
CPC Classifications
B; B63; B63B; B63B5/00; B63B5/24; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/1271; B29C65/00; B29C65/56; B29C65/562; B29C65/564; B29C66/00; B29C66/70; B29C66/72; B29C66/723; B29C67/00; B29C67/0044; E; E04; E04C; E04C2/00; E04C2/30; E04C2/38; E04C2/388; B29C44/14; B29C66/71; B29C66/73; B29C66/731; B29C66/7316; B29C66/73161
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A connector for the opposed molded plastics shells of a plastics foam-filled structural member which comprises a strip of material having a first edge portion shaped to be anchored in the parting line between mold halves for the shells, a second edge portion opposite said first edge portion shaped to be anchored in plastics foam filling the shells, and an intermediate portion connecting said edge portions fitted to close the gap between the opposed shells, said first portion being severable from said intermediate portion, said intermediate portion carrying flaps for overlying adjoining edges of the shells in sealing relation therewith and said intermediate portion being hollow and providing a recess with an open outer periphery when said first portion is severed therefrom and said flaps being anchored in said recesses.
Claim 2
Dependent Claim
130 words
A connector for the opposed molded plastics shells of a plastics foam-filled structural member which comprises a strip of material having a first edge portion shaped to be anchored in the parting line between mold halves for the shells, a second edge portion opposite said first edge portion shaped to be anchored in plastics foam filling the shells, and an intermediate portion connecting said edge portions fitted to close the gap between the opposed shells, said first portion being severable from said intermediate portion, said intermediate portion carrying flaps for overlying adjoining edges of the shells in sealing relation therewith and said intermediate portion being hollow and providing a recess with an open outer periphery when said first portion is severed therefrom and said flaps being anchored in said recesses.
References Cited (Backward Citations)
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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) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |