US3905679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflector plate
Assignee: ERWINSICK OPTIK ELEKTRONIK
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Filing: 1974-01-10
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Granted: 1975-09-16
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Expires: 1994-01-10
Abstract
Abstract A reflector plate of transparent thermoplastic material having a planar surface designed to face the reflecting light source and a second surface having triple reflectors uniformly distributed and closely juxtaposed with the surface having the triple reflectors, characterized by the presence of a plurality of feet projecting above the tips of the triple reflectors.
Inventors
- 👤 Erwin Langenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:25
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/12; G02B5/122; G02B5/124
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
66 words
Reflector plate of thermoplastic transparent material whose surface facing the reflecting light is planar and whose other surface has triple reflectors uniformly distributed and closely juxtaposed according to a regular pattern wherein the improvement comprises providing in at least part of the triple reflectors a plurality of feet arranged at spaced points of the triple pattern and projecting above the tips of the triple reflector thereof.
Claim 2
Dependent Claim
66 words
Reflector plate of thermoplastic transparent material whose surface facing the reflecting light is planar and whose other surface has triple reflectors uniformly distributed and closely juxtaposed according to a regular pattern wherein the improvement comprises providing in at least part of the triple reflectors a plurality of feet arranged at spaced points of the triple pattern and projecting above the tips of the triple reflector thereof.
Claim 3
Dependent Claim
18 words
Reflector plate as claimed in claim 1, wherein the feet are provided on the sides of the pattern.
Claim 4
Dependent Claim
22 words
Reflector plate as claimed in claim 2, wherein the feet are arranged with a uniform spacing on the sides of the pattern.
Claim 5
Dependent Claim
25 words
Reflector plate as claimed in claim 1, wherein the feet are provided on the sides where there are smooth edges protruding above the triple area.
Claim 6
Dependent Claim
15 words
Reflector plate as claimed in claim 1, wherein the feet are also extruded during manufacture.
Claim 7
Dependent Claim
29 words
Reflector plate as claimed in claim 1, wherein the in plan view hexagonal triple reflectors with two facing sides are located parallel to the sides of the overall pattern.
Claim 8
Dependent Claim
33 words
Reflector plate as claimed in claim 6, wherein the sides of the overall pattern coincide alternately with one hexagonal side of one triple reflector and the central axis of the next triple reflector.
Claim 9
Dependent Claim
32 words
Reflector plate as claimed in claim 7, wherein the feet have the cross-section of an equilateral triangle being located in each case in one of the triangular zones on the pattern sides.
Claim 10
Dependent Claim
15 words
Reflector plate as claimed in claim 1, wherein the ends of the feet are flat.
Claim 11
Dependent Claim
18 words
Reflector plate as claimed in claim 1, wherein the feet protrude more than 0.5 mm above the tips.
Claim 12
Dependent Claim
43 words
Reflector plate as claimed in claim 1, wherein it comprises hexagonal partial plates, whereby the edges of the partial plates run along the sides of the hexagonal triple reflector and the feet are provided exclusively in the bisected hexagon formed by the cut.
Claim 13
Dependent Claim
60 words
Reflector plate as claimed in claim 1, wherein it comprises rectangular partial plates, whereby one edge of the partial plates runs along the sides of the hexagonal triple reflectors and the other which is at right angles thereto runs along the tips of the hexagons and the feet are provided only in the bisected hexagons present on the first edge.
Claim 14
Dependent Claim
21 words
Reflector plate as claimed in claim 12, wherein in section the triple reflectors have a sawtooth shape along the first edge.
Claim 15
Dependent Claim
20 words
Reflector plate as claimed in claim 12, wherein the flat isosceles triangles remaining at the second edge are cut out.
Claim 16
Dependent Claim
20 words
Reflector plate as claimed in 12, wherein the partial plates and the feet are mounted on a common support plate.
Claim 17
Dependent Claim
29 words
Reflector plate as claimed in claim 15, wherein from the opposite side a glass plate is placed against the partial plates and the overall arrangement is secured in place.
Claim 18
Dependent Claim
21 words
Reflector plate as claimed in claim 16, wherein the aluminium support plate is placed in a housing on a rubber buffer.
Claim 19
Dependent Claim
44 words
Reflector plate as claimed in claim 16, wherein all the partial plates are positioned level with a step which passes round the inside of the housing and which is covered by a shapable casting compound up to the outer edge of the partial plates.
Claim 20
Dependent Claim
30 words
Reflector plate as claimed in claim 18, wherein the casting compound projects slightly above the planar surface of the partial plates and therefore rests tightly against the glass plate. Pg,16
Claim 21
Dependent Claim
71 words
Hexagonal partial reflector plate of thermoplastic transparent material whose surface facing the reflecting light is planar and whose other surface has hexagonal triple reflectors uniformly distributed and closely juxtaposed according to a regular pattern wherein the improvement comprises cutting the edges of the partial plate along the side of the hexagonal triple reflector, said improvement further comprising a plurality of feet spaced exclusively in the bisected hexagon formed by the cut.
Claim 22
Dependent Claim
71 words
Hexagonal partial reflector plate of thermoplastic transparent material whose surface facing the reflecting light is planar and whose other surface has hexagonal triple reflectors uniformly distributed and closely juxtaposed according to a regular pattern wherein the improvement comprises cutting the edges of the partial plate along the side of the hexagonal triple reflector, said improvement further comprising a plurality of feet spaced exclusively in the bisected hexagon formed by the cut.
Claim 23
Dependent Claim
91 words
Rectangular partial plate of thermoplastic transparent material whose surface facing the reflecting light is planar and whose other surface has hexagonal triple reflectors uniformly distributed and closely juxtaposed according to a regular pattern wherein the improvement comprises having a first edge of the partial plate running along the side of the hexagonal triple reflector, and the other edge, which is at right angles thereto, running along a tip of the hexagon, said improvement further comprising a plurality of feet spaced exclusively in the bisected hexagon and present on said first edge.
Claim 24
Dependent Claim
91 words
Rectangular partial plate of thermoplastic transparent material whose surface facing the reflecting light is planar and whose other surface has hexagonal triple reflectors uniformly distributed and closely juxtaposed according to a regular pattern wherein the improvement comprises having a first edge of the partial plate running along the side of the hexagonal triple reflector, and the other edge, which is at right angles thereto, running along a tip of the hexagon, said improvement further comprising a plurality of feet spaced exclusively in the bisected hexagon and present on said first edge.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |