US3960626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making high performance ablative tape
Assignee: Lockheed Martin Corp
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Filing: 1973-04-09
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Granted: 1976-06-01
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Expires: 1993-04-09
Abstract
Abstract A high temperature tape for use in protecting a structural item to be subjected to high temperature, and the method whereby this novel tape is made are set forth. The tape is principally constituted by a number of elongated carrier fibers disposed in an essentially aligned array, and a large number of comparatively short fibers disposed in a nonwoven manner essentially transversely to the elongated fibers. The short fibers typically extend beyond the confines of the carrier fibers, at least on one side, thus to create a pliable, fringed tape capable of being wrapped for a number of turns about an item to be protected. This wrapping may be done in such a manner that the fringe formed by the short orthogonally placed fibers is available to extend over and cover previous turns of the tape. The fibers are of temperature resistant material, and various means are provided for securing the short fibers to the elongated fibers, including the use of certain resins. If resin is used, it may be of a type that can be cured subsequent to the layup of a length of the tape into a desired configuration, such as a missile nose cone.
Inventors
- 👤 James L. Casadevall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:05
CPC Classifications
F; F42; F42B; F42B15/00; F42B15/34; B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/20; B29C70/202; B29C70/24; B29C70/28; B29C70/30; B64; B64G; B64G1/00; B64G1/22; B64G1/52; B64G1/58; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/10; B65H75/18; D; D04; D04D; D04D11/00; D04D3/00; D04H; D04H3/00; D04H3/02; D04H3/04; B29L; B29L2031/00; B29L2031/30; B29L2031/3097; B65H2701/00; B65H2701/30; B65H2701/31; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24091
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
136 words
A method for fabricating a nonwoven tape of high temperature fibers for use in high temperature applications comprising the steps of forming a plurality of elongate carrier fibers into an essentially aligned array, securing thereon in a nonwoven manner, a large plurality of cross fibers disposed essentially perpendicularly to said carrier fibers, with said cross fibers extending beyond said carrier fibers on at least one side to form a fringe, thus to create a pliable high temperature tape which can thereafter be wrapped for a number of turns about an item to be protected, with the fringe of cross fibers extending beyond the confines of the carrier fibers being available to provide a covering for one or more previous turns of such tape, and wrapping the tape, with the fringe intact, around a generally circular means.
Claim 2
Independent Claim
136 words
A method for fabricating a nonwoven tape of high temperature fibers for use in high temperature applications comprising the steps of forming a plurality of elongate carrier fibers into an essentially aligned array, securing thereon in a nonwoven manner, a large plurality of cross fibers disposed essentially perpendicularly to said carrier fibers, with said cross fibers extending beyond said carrier fibers on at least one side to form a fringe, thus to create a pliable high temperature tape which can thereafter be wrapped for a number of turns about an item to be protected, with the fringe of cross fibers extending beyond the confines of the carrier fibers being available to provide a covering for one or more previous turns of such tape, and wrapping the tape, with the fringe intact, around a generally circular means.
Claim 3
Dependent Claim
26 words
The method for fabricating a nonwoven tape as recited in claim 1 in which stitching is employed for securing the cross fibers and carrier fibers together.
Claim 4
Dependent Claim
37 words
The method for fabricating a nonwoven tape of high temperature fibers as defined in claim 1 in which an adhesive means are used for securing the cross fibers in a nonwoven manner to the elongate carrier fibers.
Claim 5
Dependent Claim
14 words
The method as defined in claim 3 in which said adhesive is a resin.
Claim 6
Dependent Claim
15 words
The method as defined in claim 4 in which said resin is a phenolic resin.
Claim 7
Dependent Claim
15 words
The method as defined in claim 4 in which said resin is an epoxy resin.
Claim 8
Dependent Claim
13 words
The method as defined in claim 4 in which said resin is polyurethane.
Claim 9
Dependent Claim
16 words
The method as defined in claim 4 in which said resin is a polymerizing phenolic resin.
Claim 10
Dependent Claim
14 words
The method as defined in claim 1 in which said fibers are graphite fibers.
Claim 11
Dependent Claim
13 words
The method as defined in claim 1 in which said fibers are quartz.
Claim 12
Dependent Claim
13 words
The method as defined in claim 1 in which said fibers are carbon.
Claim 13
Dependent Claim
20 words
The method as defined in claim 1 in which said cross fibers extend beyond the elongate fibers on both sides.
Claim 14
Independent Claim
119 words
A method for producing a nonwoven tape of high temperature fibers comprising the steps of forming an array of elongate, essentially parallel securing fibers, secufing a large number of cross fibers in a substantially even distribution along the length of said carrier fibers, with said cross fibers being in essentially orthogonal relationship to said carrier fibers, said cross fibers being longer than the width of said carrier fiber array and being disposed so as to extend for a significant distance beyond at least one side edge of said carrier fiber array, such overhanging fibers being available to lend strength to a layup involving the tape being wrapped for a number of overlapping turns about an item to be protected.
Claim 15
Independent Claim
119 words
A method for producing a nonwoven tape of high temperature fibers comprising the steps of forming an array of elongate, essentially parallel securing fibers, secufing a large number of cross fibers in a substantially even distribution along the length of said carrier fibers, with said cross fibers being in essentially orthogonal relationship to said carrier fibers, said cross fibers being longer than the width of said carrier fiber array and being disposed so as to extend for a significant distance beyond at least one side edge of said carrier fiber array, such overhanging fibers being available to lend strength to a layup involving the tape being wrapped for a number of overlapping turns about an item to be protected.
Claim 16
Dependent Claim
25 words
The method as defined in claim 13 in which said cross fibers extend beyond the edge of said carrier fiber array on only one side.
Claim 17
Dependent Claim
24 words
The method as defined in claim 13 in which said cross fibers extend beyond the edge of said carrier fiber array on both sides.
Claim 18
Dependent Claim
26 words
The method for fabricating a nonwoven tape as recited in claim 13 in which stitching is employed for securing the cross fibers and carrier fibers together.
Claim 19
Dependent Claim
36 words
The method for fabricating a nonwoven tape of high temperature fibers as defined in claim 13 in which adhesive means are used for securing the cross fibers in a nonwoven manner to the elongate carrier fibers.
Claim 20
Dependent Claim
14 words
The method as defined in claim 17 in which said adhesive is a resin.
Claim 21
Dependent Claim
15 words
The method as defined in claim 18 in which said resin is a phenolic resin.
Claim 22
Dependent Claim
15 words
The method as defined in claim 18 in which said resin is an epoxy resin.
Claim 23
Dependent Claim
13 words
The method as defined in claim 18 in which said resin is polyurethane.
Claim 24
Dependent Claim
16 words
The method as defined in claim 18 in which said resin is a polymerizing phenolic resin.
Claim 25
Dependent Claim
14 words
The method as defined in claim 13 in which said fibers are graphite fibers.
Claim 26
Dependent Claim
13 words
The method as defined in claim 13 in which said fibers are quartz.
Claim 27
Dependent Claim
13 words
The method as defined in claim 13 in which said fibers are carbon.
Claim 28
Dependent Claim
25 words
The method as defined in claim 13, further comprising the step of wrapping the tape, with the overhanging fibers intact, around a generally circular means.
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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) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |