US3616141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formable honeycomb core and method of making the same
Assignee: Hexcel Corp
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Filing: 1969-12-15
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Granted: 1971-10-26
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Expires: 1989-12-15
Abstract
Abstract A pack of honeycomb core material which is expandable to a nonplaner contour, the pack including a plurality of ribbons having undulating corrugations providing alternate zenith and nadir points, selected areas intermediate the zenith and nadir points being bonded to each other whereby the pack may be expanded to form a plurality of multiangular hollow cells.
Inventors
- 👤 Donald C Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:27
CPC Classifications
B; B31; B31D; B31D3/00; B31D3/02; B31D3/0207; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1003; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
34 words
The combination as set forth in claim 1 wherein corresponding segments of alternate ribbons are bonded to the adjacent ribbon on opposite sides of the mating zenith and nadir points of the adjacent ribbon.
Claim 2
Dependent Claim
46 words
The combination as set forth in claim 1 wherein each ribbon is bonded to an adjacent ribbon intermediate the zenith and nadir points thereon with alternate ribbons being bonded on oppositely angularly disposed segments of the portions of the ribbons between the zenith and nadir points.
Claim 3
Dependent Claim
55 words
The combination as set forth in claim 1 wherein each ribbon is bonded to an adjacent ribbon intermediate alternate zenith and nadir points with alternate ribbons being staggered and bonded whereby corresponding and staggered angularly disposed segments of the portions of the alternate ribbons between the zenith and nadir points are bonded to each other.
Claim 4
Dependent Claim
26 words
The combination as set forth in claim 1 wherein each cell is defined by eight major wall areas disposed at angles generally normal to each other.
Claim 5
Dependent Claim
26 words
The combination as set forth in claim 1 wherein each cell is defined by twelve major wall areas disposed at angles generally normal to each other.
Claim 6
Dependent Claim
129 words
In the art of honeycomb, a material readily formable to a nonplanar contour without exhibiting substantial anticlastic properties comprising, in combination, a stack of corrugated ribbons each defining alternate zenith and nadir points, said ribbons in stacked relationship being aligned one within the other, bonding areas bonding each ribbon to an adjacent ribbon intermediate the zenith and nadir points with alternate ribbons being bonded on different segments of the portions of the ribbons between the zenith and nadir points, said stack of ribbons defining an open cellular honeycomb structure comprising a plurality of multiwall cells each defined by at least eight major wall areas, the major wall areas of each cell between the bonding points defining pairs of adjacent wall sections disposed at angles generally perpendicular to each other.
Claim 7
Dependent Claim
21 words
The combination as set forth in claim 7 wherein said bonding areas are disposed midway between the zenith and nadir points.
Claim 8
Independent Claim
102 words
A method of making honeycomb core material which can be controllably contoured to nonplanar surfaces comprising the steps of corrugating a plurality of ribbons with mating undulations having alternate zenith and nadir points, stacking said plurality of ribbons with their corrugations in mating relationship with respect to each other to form a pack, bonding each said ribbon to an adjacent ribbon intermediate the zenith and nadir points with alternate ribbons being bonded on spaced angularly disposed segments of the portions of the ribbons between the zenith and nadir points, and expanding said ribbon pack to form a plurality of multiangular hollow cells.
Claim 9
Independent Claim
91 words
A method of making honeycomb material which can be controllably contoured to nonplanar surfaces comprising the steps of corrugating a plurality of ribbons with a series of evenly spaced alternating zenith and nadir points along their entire length, bonding each of said ribbons to an adjacent ribbon intermediate the zenith and nadir points with the bonding areas of alternate ribbons being staggered on angularly disposed segments of the portions of the ribbons between the zenith and nadir points, and expanding said ribbon pack to form a plurality of multiangular hollow cells.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |