US3887739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Honeycomb structures
Assignee: Aerojet Rocketdyne Inc
•
Filing: 1971-06-21
•
Granted: 1975-06-03
•
Expires: 1991-06-21
Abstract
Abstract A honeycomb structure in accordance with the present disclosure comprises a matrix having a plurality of filament rovings arranged in overlapping relationship to form cellular walls. The overlapping rovings are bonded together by a bonding means. A plurality of dies are formed in a configuration to form a grid of slots corresponding to the walls of the honeycomb structure. The filament rovings are wound into the slots in overlapping relationship to assume the desired configuration. Preferably, the rovings are wrapped so that at the intersection of crossing and overlapping filament rovings, the rovings are flattened into chamfered areas of the cells so as to increase the area of the bond between overlapping and intersecting rovings, thereby increasing the strength of the honeycomb wall structure in a Z or radial direction.
Inventors
- 👤 Robert V Kromrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:13
CPC Classifications
B; B31; B31B; B31B50/00; B31D; B31D5/00; B31D5/0086; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1003; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24116; Y10T428/24149; Y10T428/24157
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
93 words
A honeycomb structure comprising: a body having a plurality of open cells and means defining a number of walls surrounding said cells to provide a honeycomb configuration therefor, said means including a plurality of rovings high modulus fibrous arranged in stacked, intersecting relationship to Each other, the portion of each roving at its intersections with adjacent rovings being flattened into chamfered areas so as to have a greater area then the portions of the roving between the intersections; and resin impregnated in said rovings throughout their lengths for bonding the overlapped rovings together.
Claim 2
Dependent Claim
93 words
A honeycomb structure comprising: a body having a plurality of open cells and means defining a number of walls surrounding said cells to provide a honeycomb configuration therefor, said means including a plurality of rovings high modulus fibrous arranged in stacked, intersecting relationship to Each other, the portion of each roving at its intersections with adjacent rovings being flattened into chamfered areas so as to have a greater area then the portions of the roving between the intersections; and resin impregnated in said rovings throughout their lengths for bonding the overlapped rovings together.
Claim 3
Dependent Claim
93 words
A honeycomb structure comprising: a body having a plurality of open cells and means defining a number of walls surrounding said cells to provide a honeycomb configuration therefor, said means including a plurality of rovings high modulus fibrous arranged in stacked, intersecting relationship to Each other, the portion of each roving at its intersections with adjacent rovings being flattened into chamfered areas so as to have a greater area then the portions of the roving between the intersections; and resin impregnated in said rovings throughout their lengths for bonding the overlapped rovings together.
Claim 4
Dependent Claim
93 words
A honeycomb structure comprising: a body having a plurality of open cells and means defining a number of walls surrounding said cells to provide a honeycomb configuration therefor, said means including a plurality of rovings high modulus fibrous arranged in stacked, intersecting relationship to Each other, the portion of each roving at its intersections with adjacent rovings being flattened into chamfered areas so as to have a greater area then the portions of the roving between the intersections; and resin impregnated in said rovings throughout their lengths for bonding the overlapped rovings together.
Claim 5
Dependent Claim
61 words
A structure as set forth in claim 1, wherein is included a cell filler member for each cell, respectively, the filler members comprising cellular high modulus resin-impregnated yarns and being disposed in respective, spaced positions forming an array and defining a plurality of intersecting channels, the rovings being disposed in respective channels, said bonding means interconnecting the fillers to adjacent rovings.
Claim 6
Dependent Claim
38 words
A structure as set forth in claim 2, wherein each filler has a first pair of opposed faces and a second pair of opposed faces, there being a chamfer at the junction of each pair of adjacent faces.
Claim 7
Dependent Claim
36 words
A structure as set forth in claim 3, wherein each filler has a tapered outer end for guiding the rovings into the spaces adjacent thereto as the rovings are moved into position to form said walls.
Claim 8
Dependent Claim
26 words
A structure as set forth in claim 2, wherein each cell and each filler are transversely diamond-shaped, the rovings being initially positioned in an orthogonal pattern.
Claim 9
Dependent Claim
22 words
A structure as set forth in claim 1, wherein said rovings are wrapped about frustoconical fillers and extend helically about the same.
Claim 10
Dependent Claim
28 words
A structure as set forth in claim 1, wherein each cell is diamond-shaped, the width of each cell decreasing as the apex end of the core is approached.
References Cited (Backward Citations)
US880784A
Cited
US2445290A
Cited
US2477852A
Cited
US2606133A
Cited
US2744042A
Cited
US3034938A
Cited
US2902395A
Cited
US3300354A
Cited
US3210233A
Cited
US3490983A
Cited
US3373480A
Cited
US3549468A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |