Patent US3578840A successfully refreshed from Google Patents.
US3578840A
Expired / Lapsed
US
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Revolving reflector
Assignee: Individual
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Filing: 1970-01-26
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Granted: 1971-05-18
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Expires: 1990-01-26
Abstract
Abstract A revolving reflector having three prismatic-shaped blades attached to a bushing through which a central shaft is inserted. The device, due to the position and shape of the prismatic blades, will rotate regardless of the wind direction or its position on a moving object. The various blade surfaces are coated with different reflecting and nonreflecting materials and provide a flashing effect by reflecting light when revolving. The device can be utilized in various ways, as a safety device, on a child''s bicycle, or as an indicating marker for a driveway, etc. The revolving reflector is of simple design and can be produced inexpensively, yet is sturdy and durable.
Inventors
- 👤 John O Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:30
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/12; G08; G08B; G08B5/00; G08B5/004
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
133 words
A revolving light reflector having a stationary center shaft, a concentric bushing journaled on the stationary shaft, three similar prismatic-shaped blades mounted on and extending radially from the bushing at equally spaced intervals, the blades having reflecting surfaces, top cap means mounted on the top of the shaft, a lower bearing member having a curved surface mounted below the bushing on the shaft, and lower retaining means mounted on the shaft below the bearing member, said prismatic blade being triangular in cross section and including a plurality of radially extending rectangular sides, in which two of the sides have equal areas, in which said two sides intersect at a front edge, and in which the front edges of the three blades lie in a plane perpendicular to the axis of the center shaft.
Claim 2
Dependent Claim
133 words
A revolving light reflector having a stationary center shaft, a concentric bushing journaled on the stationary shaft, three similar prismatic-shaped blades mounted on and extending radially from the bushing at equally spaced intervals, the blades having reflecting surfaces, top cap means mounted on the top of the shaft, a lower bearing member having a curved surface mounted below the bushing on the shaft, and lower retaining means mounted on the shaft below the bearing member, said prismatic blade being triangular in cross section and including a plurality of radially extending rectangular sides, in which two of the sides have equal areas, in which said two sides intersect at a front edge, and in which the front edges of the three blades lie in a plane perpendicular to the axis of the center shaft.
Claim 3
Dependent Claim
21 words
The revolving light reflector as defined in claim 1 in which the lower retaining means includes a ring of resilient material.
Claim 4
Dependent Claim
63 words
The revolving light reflector as defined in claim 1 in which each prismatic blade is triangular in cross section and includes three radially extending rectangular sides, in which two of the sides have equal areas, in which a backside joins the two sides, and in which the backsides of the three blades lie in planes parallel to the axis of the center shaft.
Claim 5
Dependent Claim
50 words
The revolving light reflector defined in claim 1 in which each prismatic blade is V-shaped in cross section, in which each blade has two sides of equal area which intersect at a front edge, and in which the two sides form a concave pocket opening rearwardly from said front 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) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |