Patent US3926708A successfully refreshed from Google Patents.
US3926708A
Expired / Lapsed
US
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Method of manufacturing high strength fiber reinforced thermo plastic parts
Assignee: Teledyne Ryan Aeronautical Corp
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Filing: 1972-10-25
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Granted: 1975-12-16
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Expires: 1992-10-25
Abstract
Abstract The method includes a shaping step utilizing the good shaping characteristics of thermoplastic material prior to the application of local fiber reinforcement. After shaping high strength fiber reinforcement is applied in the form of tapes. Both adhesive and base material matrix bonding methods of securing the reinforcing tapes are contemplated. For finished parts, that require a smooth surface, it is possible to mold a recess into the surface of the thermoplastic material to accommodate the tape and produce a substantially continuous smooth outer surface.
Inventors
- 👤 Roger A Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:36
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/0009; B64U; B64U20/00; B64U20/60; B64U20/65; B64C2001/0045; Y; Y10; Y10S; Y10S428/00; Y10S428/902
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
114 words
A METHOD OF FORMING HIGH-STRENGTH FIBER-REINFORCED THERMO PLASTIC PARTS COMPRISING THE STEPS OF, HEATING THERMO PLASTIC MATERIAL TO A TEMPERATURE AT WHICH IT IS READILY FORMABLE, FORMING SAID MATERIAL TO THE DESIRED FINAL CONFIGURATION BY DRAWING SAID MATERIAL BY A VACUUM ONTO A MOLD, PERMITTING SAID PLASTIC MATERIAL TO COOL AND HARDEN, APPLYING AN ELONGATED FIBER REINFORCING TO SELECTIVE LOCATIONS ON AT LEAST ONE OF SAID SURFACES OF SAID MATERIAL BY PLACING TAPES OF ELONGATED HIGH STRENGTH, AND HIGH MODULUS FIBERS IN A MATRIX OF THERMO PLASTIC MATERIAL ONTO THE SURFACE OF THE FORMED THERMO PLASTIC PART, BONDING SAID TAPES AT SAID SELECTIVE LOCATIONS BY HEATING SAID THERMO PLASTIC MATRIX MATERIAL IN SAID TAPES.
Claim 2
Independent Claim
114 words
A METHOD OF FORMING HIGH-STRENGTH FIBER-REINFORCED THERMO PLASTIC PARTS COMPRISING THE STEPS OF, HEATING THERMO PLASTIC MATERIAL TO A TEMPERATURE AT WHICH IT IS READILY FORMABLE, FORMING SAID MATERIAL TO THE DESIRED FINAL CONFIGURATION BY DRAWING SAID MATERIAL BY A VACUUM ONTO A MOLD, PERMITTING SAID PLASTIC MATERIAL TO COOL AND HARDEN, APPLYING AN ELONGATED FIBER REINFORCING TO SELECTIVE LOCATIONS ON AT LEAST ONE OF SAID SURFACES OF SAID MATERIAL BY PLACING TAPES OF ELONGATED HIGH STRENGTH, AND HIGH MODULUS FIBERS IN A MATRIX OF THERMO PLASTIC MATERIAL ONTO THE SURFACE OF THE FORMED THERMO PLASTIC PART, BONDING SAID TAPES AT SAID SELECTIVE LOCATIONS BY HEATING SAID THERMO PLASTIC MATRIX MATERIAL IN SAID TAPES.
Claim 3
Dependent Claim
31 words
The method of claim 1 wherein said step of forming is further characterized by relieving the surface of the plastic material to provide recesses for receiving tapes of elongated fiber-matrix material.
Claim 4
Independent Claim
81 words
A method of forming high strength fiber reinforced thermo plastic parts comprising the steps of, heating thermo plastic material to a temperature at which it is readily formable, forming said material to the desired final configuration by drawing said material by a vacuum onto a mold, permitting said plastic material to cool and harden, adhesively bonding tapes of elongated high strength and high modulus fibers in a matrix material onto the surface of the formed thermo plastic part at selected locations.
Claim 5
Independent Claim
81 words
A method of forming high strength fiber reinforced thermo plastic parts comprising the steps of, heating thermo plastic material to a temperature at which it is readily formable, forming said material to the desired final configuration by drawing said material by a vacuum onto a mold, permitting said plastic material to cool and harden, adhesively bonding tapes of elongated high strength and high modulus fibers in a matrix material onto the surface of the formed thermo plastic part at selected locations.
Claim 6
Dependent Claim
34 words
The method as claimed in claim 3 wherein, said step of forming is further characterized by relieving the surface of the plastic material to provide recesses for receiving tapes of elongated fiber matrix material.
Claim 7
Independent Claim
98 words
A method of forming high strength fiber reinforced thermo plastic parts comprising the steps of, heating thermo plastic material to a temperature at which it is readily formable, forming said material to the desired final configuration, permitting said plastic material to cool and harDen, placing tapes of elongated high strength and high modulus fibers in a matrix of thermo plastic material onto the surface of said thermo plastic material, bonding said tapes in position on the formed thermo plastic part by heating the matrix material to a temperature at which it bonds to said formed thermo plastic part.
Claim 8
Independent Claim
98 words
A method of forming high strength fiber reinforced thermo plastic parts comprising the steps of, heating thermo plastic material to a temperature at which it is readily formable, forming said material to the desired final configuration, permitting said plastic material to cool and harDen, placing tapes of elongated high strength and high modulus fibers in a matrix of thermo plastic material onto the surface of said thermo plastic material, bonding said tapes in position on the formed thermo plastic part by heating the matrix material to a temperature at which it bonds to said formed thermo plastic part.
Claim 9
Dependent Claim
34 words
The method as claimed in claim 5 wherein, said step of forming is further characterized by relieving the surface of said plastic material to provide recesses for receiving tapes of elongated fiber matrix material.
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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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |