US3341387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for filament winding and curing on a plurality of mandrels
Assignee: Universal Moulded Fiber Glass Corp
•
Filing: 1964-01-29
•
Granted: 1967-09-12
•
Expires: 1984-01-29
Abstract
No abstract record available.
Inventors
- 👤 Le Roy R Boggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:24
CPC Classifications
B; B65; B65H; B65H81/00; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN THE PRODUCTION OF FILAMENT REINFORCED RESIN ARTICLES, THE METHOD WHICH COMPRISES ROTATING A PLURALITY OF HOLLOW CYLINDRICAL MANDRELS IN AXIALLY ALIGNED HORIZONTAL POSITION IN A FILAMENT WINDING MACHINE, APPLYING FILAMENTS REINFORCEMENTS AND LIQUID HEAT HARDENABLE RESIN MATERIAL TO THE OUTSIDE SURFACES OF THE MANDRELS, THE FILAMENTS REINFORECEMENTS BEING FED TO THE MANDRELS TO EFFECT FILAMENT WINDING THEREON, WHILE THE MANDRELS ARE ROTATING PASSING A HEAT TRANSFER MEDIUM AXIALLY SEQUENTIALLY THROUGH THE ALIGNED MANDRELS TO INITIATE HARDENING OF THE RESIN MATERIAL, AFTER THE ARTICLES ARE SOLIDIFIED BUT BEFORE THE RESIN MATERIAL IS FULLY HARDENED, TERMINATING ROTATION OF THE MANDRELS AND REMOVING THEM FROM THE WINDING MACHINE, AND THEREAFTER SEPARATELY PASSING HEATING MEDIUM THROUGH EACH OF THE MANDRELS TO FURTHER HARDEN THE RESIN MATERIAL.
Claim 2
Dependent Claim
123 words
IN THE PRODUCTION OF FILAMENT REINFORCED RESIN ARTICLES, THE METHOD WHICH COMPRISES ROTATING A PLURALITY OF HOLLOW CYLINDRICAL MANDRELS IN AXIALLY ALIGNED HORIZONTAL POSITION IN A FILAMENT WINDING MACHINE, APPLYING FILAMENTS REINFORCEMENTS AND LIQUID HEAT HARDENABLE RESIN MATERIAL TO THE OUTSIDE SURFACES OF THE MANDRELS, THE FILAMENTS REINFORECEMENTS BEING FED TO THE MANDRELS TO EFFECT FILAMENT WINDING THEREON, WHILE THE MANDRELS ARE ROTATING PASSING A HEAT TRANSFER MEDIUM AXIALLY SEQUENTIALLY THROUGH THE ALIGNED MANDRELS TO INITIATE HARDENING OF THE RESIN MATERIAL, AFTER THE ARTICLES ARE SOLIDIFIED BUT BEFORE THE RESIN MATERIAL IS FULLY HARDENED, TERMINATING ROTATION OF THE MANDRELS AND REMOVING THEM FROM THE WINDING MACHINE, AND THEREAFTER SEPARATELY PASSING HEATING MEDIUM THROUGH EACH OF THE MANDRELS TO FURTHER HARDEN THE RESIN MATERIAL.
References Cited (Backward Citations)
US1033010A
Cited
US2386203A
Cited
US2563642A
Cited
US2731067A
Cited
US2837456A
Cited
US2731376A
Cited
US2794481A
Cited
US2810931A
Cited
US3112530A
Cited
US3114173A
Cited
US3159515A
Cited
US3112897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |