Patent US4416509A successfully refreshed from Google Patents.
US4416509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal reflector of electromagnetic waves mounted on a float
Assignee: Individual
•
Filing: 1981-05-20
•
Granted: 1983-11-22
•
Expires: 2001-05-20
Abstract
Abstract The subject of the invention is the universal reflector of electromagnetic waves mounted on the float which in any position reflects electromagnetic waves back to the source of the emission, that is, to the receiver. The reflected electromagnetic wave has a direction parallel to the direction of incoming emitted electromagnetic beam.
Inventors
- 👤 Drndarski Milan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:10
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/12; G02B5/122; G02B5/124
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
152 words
A reflector for electromagnetic radiation which reflects radiation from any arbitrary angle in three dimensions in parallel to incoming radiation to within approximately ±20°, said reflector comprising: (a) a reflector body in the shape of a modified icosahedron having twenty regular hexagonal surfaces and twelve regular pentagonal surfaces; (b) six regular trilateral pyramids formed on each of the twenty regular hexagonal surfaces, one edge of each of the trilateral pyramids being one edge of the associated hexagonal surface and the vertex of the trilateral pyramid opposite said one edge thereof being the center of the associated hexagonal surface; and (c) six regular trilateral pyramids formed on each of the twelve regular pentagonal surfaces, one edge of one of the trilateral pyramid being a part of one edge of the associated pentagonal surface and the vertex of the trilateral pyramid opposite said one edge thereof being the center of the associated pentagonal surface.
Claim 2
Dependent Claim
152 words
A reflector for electromagnetic radiation which reflects radiation from any arbitrary angle in three dimensions in parallel to incoming radiation to within approximately ±20°, said reflector comprising: (a) a reflector body in the shape of a modified icosahedron having twenty regular hexagonal surfaces and twelve regular pentagonal surfaces; (b) six regular trilateral pyramids formed on each of the twenty regular hexagonal surfaces, one edge of each of the trilateral pyramids being one edge of the associated hexagonal surface and the vertex of the trilateral pyramid opposite said one edge thereof being the center of the associated hexagonal surface; and (c) six regular trilateral pyramids formed on each of the twelve regular pentagonal surfaces, one edge of one of the trilateral pyramid being a part of one edge of the associated pentagonal surface and the vertex of the trilateral pyramid opposite said one edge thereof being the center of the associated pentagonal surface.
Claim 3
Dependent Claim
28 words
A reflector as recited in claim 1 and further comprising: (a) a float and (b) a sight-mark, said reflector body and said sight-mark being mounted on said float.
Claim 4
Dependent Claim
208 words
A reflector for electromagnetic radiation which reflects radiation from any arbitrary angle is a plane perpendicular to the axis of the reflector in parallel to incoming radiation to within approximately ±20°, said reflector comprising: (a) a reflector body generally in the shape of a cylinder the axis of which forms the axis of the reflector, the exterior surface of the reflector body being formed from a first wreath of six regular triangular surfaces the normals to which project from the axis of the reflector at a first uniform angle and a second wreath of six regular triangular surfaces the normals to which project from the axis of the reflector at a second uniform angle, the normals to the first and second wreaths both being very nearly perpendicular to the axis of the reflector and the difference between the first and second uniform angles being approximately 17° 50'; (b) a regular trilateral pyramid formed on each of the six regular triangular surfaces of the first wreath, each triangular surface forming the base of the associated regular trilateral pyramid; and (c) a regular trilateral pyramid formed on each of the six regular triangular surfaces of the second wreath, each triangular surface forming the base of the associated regular trilateral pyramid.
Claim 5
Dependent Claim
208 words
A reflector for electromagnetic radiation which reflects radiation from any arbitrary angle is a plane perpendicular to the axis of the reflector in parallel to incoming radiation to within approximately ±20°, said reflector comprising: (a) a reflector body generally in the shape of a cylinder the axis of which forms the axis of the reflector, the exterior surface of the reflector body being formed from a first wreath of six regular triangular surfaces the normals to which project from the axis of the reflector at a first uniform angle and a second wreath of six regular triangular surfaces the normals to which project from the axis of the reflector at a second uniform angle, the normals to the first and second wreaths both being very nearly perpendicular to the axis of the reflector and the difference between the first and second uniform angles being approximately 17° 50'; (b) a regular trilateral pyramid formed on each of the six regular triangular surfaces of the first wreath, each triangular surface forming the base of the associated regular trilateral pyramid; and (c) a regular trilateral pyramid formed on each of the six regular triangular surfaces of the second wreath, each triangular surface forming the base of the associated regular trilateral pyramid.
Claim 6
Dependent Claim
28 words
A reflector as recited in claim 3 and further comprising: (a) a float and (b) a sight-mark, said reflector body and said sight-mark being mounted on said float.
Claim 7
Dependent Claim
35 words
A reflector as recited in claim 4 and further comprising: (a) a bulb mounted on said float and (b) a battery operatively connected to said bulb and mounted in said float or said reflector body.
References Cited (Backward Citations)
US1813874A
Cited
US2604644A
Cited
US2534710A
Cited
US3039093A
Cited
US3365790A
Cited
US4053233A
Cited
US4208097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-21 | 1987-05-23 | 1987-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-21 | 1991-05-23 | 1991-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-21 | 1995-05-23 | 1995-11-22 | $7700.00 | Window Closed / Lapsed |