Patent US3771748A successfully refreshed from Google Patents.
US3771748A
Expired / Lapsed
US
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Structures
Assignee: I M IND KYNOCK Ltd
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Filing: 1972-10-10
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Granted: 1973-11-13
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Expires: 1992-10-10
Abstract
Abstract A multi-cell structure, for example an aircraft wing, comprising polygonal support members or spines and panel members bonded to the spines so that a median plane of a panel member intersects one side of a spine and the panel member is bonded to two other sides of the spine.
Inventors
- 👤 M Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:36
CPC Classifications
B; B64; B64C; B64C3/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
178 words
A stress bearing structure for flight vehicles, the structure comprising at least one elongated beam-like support member of polygonal lateral cross-section such that the outer surface has a plurality of planar sides each of which is intermediate other planar sides, a plurality of shell members, each shell member being of unitary construction and having, with respect to the longitudinal axis of said at least one support member, a radially inner flat wall and a radially outer wall, and a flat wall connecting each longitudinally extending edge of the radially inner wall with a respective longitudinally extending edge of a radially outer wall to form a closed quadrilateral figure, the radially inner flat wall of each shell member being bonded to a respective one of said other planar sides of the support member, the arrangement being such that the opposed connecting flat walls of adjoining shell members are parallel one to the other and are bonded together to form corresponding panel members each of which extends from a respective one of said intermediate planar sides of the support member.
Claim 2
Dependent Claim
178 words
A stress bearing structure for flight vehicles, the structure comprising at least one elongated beam-like support member of polygonal lateral cross-section such that the outer surface has a plurality of planar sides each of which is intermediate other planar sides, a plurality of shell members, each shell member being of unitary construction and having, with respect to the longitudinal axis of said at least one support member, a radially inner flat wall and a radially outer wall, and a flat wall connecting each longitudinally extending edge of the radially inner wall with a respective longitudinally extending edge of a radially outer wall to form a closed quadrilateral figure, the radially inner flat wall of each shell member being bonded to a respective one of said other planar sides of the support member, the arrangement being such that the opposed connecting flat walls of adjoining shell members are parallel one to the other and are bonded together to form corresponding panel members each of which extends from a respective one of said intermediate planar sides of the support member.
Claim 3
Dependent Claim
29 words
A structure according to claim 1 wherein each panel member formed by adjoining shell members is normal to its respective said intermediate planar side of an associated support member.
Claim 4
Dependent Claim
21 words
A structure according to claim 1 wherein the support members and the shell members are made from glass reinforced plastics material.
Claim 5
Dependent Claim
22 words
A structure according to claim 1 wherein the support members and the shell members are made from carbon fibre reinforced plastics material.
References Cited (Backward Citations)
US2316622A
Cited
US2540482A
Cited
US2720949A
Cited
US3145000A
Cited
US3416750A
Cited
US3667984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |