US4406045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warning reflector
Assignee: D Swarovski KG
•
Filing: 1980-07-03
•
Granted: 1983-09-27
•
Expires: 2000-07-03
Abstract
Abstract A warning reflector construction is provided comprising a transparent plate having a rear surface opposite a light-entrance surface. The rear surface comprises torus surfaces arranged side-by-side and supporting an outermost reflective layer. The optical axes of the torus surfaces can be arranged at an angle to the perpendicular to the light-entrance surface. The warning reflector can be produced by injection moulding or stamping.
Inventors
- 👤 Kurt Schwab
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:42
CPC Classifications
A; A01; A01M; A01M29/00; A01M29/06; A01M29/08; A01M29/10; G; G02; G02B; G02B5/00; G02B5/12; G02B5/136; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49982; Y10T29/49984
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
81 words
An injection molding method for the manufacture of a warning reflector from a metal sheet having a surface coated with transparent plastic, comprising the steps of introducing such sheet into a forming mold and injecting additional transparent plastic at an elevated temperature into said mold against the plastic coated surface of said metal sheet for forming said metal sheet relative to a surface of said mold and for fusing such additional plastic with the transparent plastic coating of said metal sheet.
Claim 2
Dependent Claim
81 words
An injection molding method for the manufacture of a warning reflector from a metal sheet having a surface coated with transparent plastic, comprising the steps of introducing such sheet into a forming mold and injecting additional transparent plastic at an elevated temperature into said mold against the plastic coated surface of said metal sheet for forming said metal sheet relative to a surface of said mold and for fusing such additional plastic with the transparent plastic coating of said metal sheet.
Claim 3
Independent Claim
67 words
A method for the manufacture of a warning reflector comprising the steps of introducing a metal sheet coated with transparent plastic into a forming zone; introducing additional transparent plastic at an elevated temperature into said forming zone so as to fuse such additional transparent plastic with the transparent plastic coating of such metal sheet, and simultaneously form said metal sheet and transparent plastic into a desired configuration.
Claim 4
Independent Claim
67 words
A method for the manufacture of a warning reflector comprising the steps of introducing a metal sheet coated with transparent plastic into a forming zone; introducing additional transparent plastic at an elevated temperature into said forming zone so as to fuse such additional transparent plastic with the transparent plastic coating of such metal sheet, and simultaneously form said metal sheet and transparent plastic into a desired configuration.
Claim 5
Independent Claim
122 words
A method for manufacturing a warning reflector having a molded surface of desired configuration and including a deformable metal sheet the steps comprising coating such deformable sheet in an injection mold in opposed relation with a mold surface of such desired configuration, and with a plastic coated surface of such metal sheet facing away from said much surface of desired configuration; injecting flowable, hardenable, plastic fusible with such plastic coated surface of said metal sheet into said mold; deforming said deformable metal sheet against such mold surface of desired configuration in a surface-to-surface engagement in the absence of any injected fusible plastic therebetween; and allowing such flowable plastic to harden and fuse with such plastic coating surface of the deformed metal sheet.
Claim 6
Independent Claim
122 words
A method for manufacturing a warning reflector having a molded surface of desired configuration and including a deformable metal sheet the steps comprising coating such deformable sheet in an injection mold in opposed relation with a mold surface of such desired configuration, and with a plastic coated surface of such metal sheet facing away from said much surface of desired configuration; injecting flowable, hardenable, plastic fusible with such plastic coated surface of said metal sheet into said mold; deforming said deformable metal sheet against such mold surface of desired configuration in a surface-to-surface engagement in the absence of any injected fusible plastic therebetween; and allowing such flowable plastic to harden and fuse with such plastic coating surface of the deformed metal sheet.
Claim 7
Dependent Claim
21 words
The method of claim 1, 2 or 3 in which the transparent plastic coating covers all surfaces of said metal sheet.
Claim 8
Dependent Claim
35 words
The method of claim 1, 2 or 3 in which the transparent plastic coating is disposed on one side only of said metal sheet; such one side being that which engages the additional transparent plastic.
References Cited (Backward Citations)
US2587325A
Cited
US2036146A
Cited
US2555191A
Cited
FR1020520A
Cited
GB869416A
Cited
US3011383A
Cited
US3246066A
Cited
GB1075796A
Cited
FR1407876A
Cited
US3963309A
Cited
US4150478A
Cited
US3992080A
Cited
US4252409A
Cited
US4292827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-26 | 1987-03-28 | 1987-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-26 | 1991-03-28 | 1991-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-26 | 1995-03-28 | 1995-09-27 | $7700.00 | Window Closed / Lapsed |