Laminated lightweight refelctor structures
Abstract
Abstract A method for forming a complex curved structure and the structure itself which is essentially directed towards making lightweight reflectors for use as mirrors or radar antennae. Essentially the process involves capturing a complex geometric shape with a thin layer of cured high density resin, depositing a lightweight resin foam on the back of the thin resin layer, and curing the foam to retain the desired geometric shape to the resin layer and provide an extremely lightweight structure. The foam can be in one or more laminated layers to give greater structural rigidity properties, or dent-resistance. A resin impregnated fiberglass material covers the back of the laminated structure to provide structural integrity. The composite product is up to 10 times lighter than similar metallic or glass structures, and has extremely good optical qualities when formed for mirror surfaces. A thin reflective metallic coating can be deposited after the entire laminate is formed, or it can be deposited onto a thin plastic sheet which in turn is laminated to the formed resin layer.
Inventors
- 👤 Cletus A Becht
Bibliographic Details
Claims Analysis
Total Claims: 2References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |