US3956549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat hull connector and method
Assignee: Individual
•
Filing: 1974-10-29
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Granted: 1976-05-11
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Expires: 1994-10-29
Abstract
Abstract The opposed moulded plastic shells of a shell covered foam filled structural member suitable for boat hulls and decks are connected together 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 plastic 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 moulds carrying the shells and providing a cavity for the foam which is severed from the connector strip after removal from the moulds.
Inventors
- 👤 Helmut Stoeberl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:16
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; B29C66/50; B29C66/51; B29C66/54; B29C66/70; B29C66/72; B29C66/723; B29C67/00; B29C67/0044; B63B73/00; B63B73/70; B63B73/72; E; E04; E04C; E04C2/00; E04C2/30; E04C2/38; E04C2/388; B29C44/14; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/114; B29C66/1142; B29C66/71; B29C66/73; B29C66/731; B29C66/7316; B29C66/73161; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/108; Y10T428/00; Y10T428/23; Y10T428/233; Y10T428/24; Y10T428/24777; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249991
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
122 words
A structural member comprising a pair of opposed molded plastics shells defining a cavity therebetween, plastics foam filling said cavity, peripheral edges of the opposed shells spaced from one another at a peripheral gap, a connector strip between the peripheral edges of said shells having a first edge portion exterior of the shell having at least one projection adapted to be anchored in the parting line of mold halves containing said shells, a second edge portion in said cavity between the shells anchored in said plastics foam and a connecting portion between said first and second edge portions closing the gap between the shells, and flaps carried by said connecting portion overlying the peripheries of the shells in tight sealing engagement therewith.
Claim 2
Dependent Claim
122 words
A structural member comprising a pair of opposed molded plastics shells defining a cavity therebetween, plastics foam filling said cavity, peripheral edges of the opposed shells spaced from one another at a peripheral gap, a connector strip between the peripheral edges of said shells having a first edge portion exterior of the shell having at least one projection adapted to be anchored in the parting line of mold halves containing said shells, a second edge portion in said cavity between the shells anchored in said plastics foam and a connecting portion between said first and second edge portions closing the gap between the shells, and flaps carried by said connecting portion overlying the peripheries of the shells in tight sealing engagement therewith.
Claim 3
Dependent Claim
24 words
The structural member of claim 1 wherein said flaps are provided by a second strip anchored to the connecting portion of the said connector.
Claim 4
Dependent Claim
31 words
The structural member of claim 1 wherein said first edge portion of the connector is severable from said connecting portion providing an anchor for and a second strip including said flaps.
Claim 5
Dependent Claim
52 words
The structural member of claim 1 wherein the connecting portion is hollow, the first edge portion is severed from the connecting portion to expose the interior of the hollow connecting portion and the flaps are provided by a second strip having a tongue anchored in the hollow interior of the connecting portion.
Claim 6
Dependent Claim
28 words
The structural member of claim 4 wherein the second strip has a tongue snap-fitted in the hollow interior of the connecting portion to secure the flaps in position.
Claim 7
Dependent Claim
31 words
The structural member of claim 1 wherein the second edge portion of the connector strip has means radiating therefrom into the plastics foam to firmly anchor the connector in the foam.
Claim 8
Dependent Claim
23 words
The structural member of claim 1 wherein a second strip is carried by the connector and has means mounting a second structural member.
Claim 9
Dependent Claim
13 words
The structural member of claim 7 wherein said means is a pivot support.
Claim 10
Independent Claim
114 words
The method of making plastics foam-filled structural members which comprises molding plastic shells in opposed mold halves, providing a connector strip clamping the connector strip between the mold halves around an outer edge portion of the strip while projecting an inner edge portion of the strip into the cavity between the shells in the molds, filling the cavity between the shells in the molds with plastics foam and simultaneously anchoring the portion of the strip in the cavity securely in the foam, removing the foam-filled unit from the mold halves, severing the portion of the strip projecting from the shells, and sealing the peripheral edges of the shells with flaps carried by the strip.
Claim 11
Independent Claim
114 words
The method of making plastics foam-filled structural members which comprises molding plastic shells in opposed mold halves, providing a connector strip clamping the connector strip between the mold halves around an outer edge portion of the strip while projecting an inner edge portion of the strip into the cavity between the shells in the molds, filling the cavity between the shells in the molds with plastics foam and simultaneously anchoring the portion of the strip in the cavity securely in the foam, removing the foam-filled unit from the mold halves, severing the portion of the strip projecting from the shells, and sealing the peripheral edges of the shells with flaps carried by the strip.
Claim 12
Dependent Claim
36 words
The method of claim 9 including the step of applying a separate strip around the first strip after the projecting portion has been severed therefrom to provide the flaps for sealing the peripheries of the shells.
Claim 13
Dependent Claim
18 words
The method of claim 10 wherein the second strip is snap-fitted into a recess of the first strip.
Claim 14
Dependent Claim
98 words
A structural member comprising a pair of opposed molded plastic shells defining a cavity therebetween, plastics foam filling said cavity, a connector strip extending between peripheral edges of said shells, the connector strip having a first portion adapted to be anchored in parting line of mold halves containing said shells, a second edge portion opposite said first edge portion located in said cavity between the shells anchored in said plastics foam and a connecting portion between said first and second edge portions projecting between the peripheral edges of said shells and closing a gap between the said shells.
Claim 15
Dependent Claim
98 words
A structural member comprising a pair of opposed molded plastic shells defining a cavity therebetween, plastics foam filling said cavity, a connector strip extending between peripheral edges of said shells, the connector strip having a first portion adapted to be anchored in parting line of mold halves containing said shells, a second edge portion opposite said first edge portion located in said cavity between the shells anchored in said plastics foam and a connecting portion between said first and second edge portions projecting between the peripheral edges of said shells and closing a gap between the said shells.
Claim 16
Dependent Claim
39 words
The member of claim 12 wherein said connecting portion includes means for facilitating severing of said first edge portion and a portion of said connecting portion from said second edge portion and a second portion of said connecting portion.
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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) | 1979-05-11 | 1979-11-10 | 1980-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-11 | 1983-11-10 | 1984-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-11 | 1987-11-10 | 1988-05-11 | $7700.00 | Window Closed / Lapsed |