Patent EP0202865A2 successfully refreshed from Google Patents.
Patent US4565900A successfully refreshed from Google Patents.
US4565900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightning rod construction
Assignee: Individual
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Filing: 1984-09-14
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Granted: 1986-01-21
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Expires: 2004-09-14
Abstract
Abstract A lightning rod structure comprises a steel rod for connection to the ground, the rod extending upwardly from a central hub, and the structure further including an accelerator associated with the hub. The accelerator includes upper metal deflector arms radiating from the hub and each formed with a series of holes, and further arms of dielectric material radiating from the hub below the deflector arms. The further arms carry upwardly extending exciter needles centered on the holes in the upper arms. In use, a potential difference is created between the rod which is positively charged and the needles which become negatively charged.
Inventors
- 👤 Angel I. Arnau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:45
CPC Classifications
H; H02; H02G; H02G13/00; H02G13/80
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
85 words
A lightning rod structure comprising a steel rod for electrical connection to the ground, the rod extending upwardly from a central hub, the structure further including an accelerator comprising plural metallic deflector arms extending radially from the hub, each arm having a series of holes therethrough and being electrically connected to the rod, further arms of dielectric material radially extending from the hub below the respective deflector arms, the further arms supporting upright exciter needles centered substantially on the respective holes in the deflector arms.
Claim 2
Dependent Claim
85 words
A lightning rod structure comprising a steel rod for electrical connection to the ground, the rod extending upwardly from a central hub, the structure further including an accelerator comprising plural metallic deflector arms extending radially from the hub, each arm having a series of holes therethrough and being electrically connected to the rod, further arms of dielectric material radially extending from the hub below the respective deflector arms, the further arms supporting upright exciter needles centered substantially on the respective holes in the deflector arms.
Claim 3
Dependent Claim
40 words
The invention of claim 1 wherein the exciter needles are interconnected by metal plates carried by the respective further arms and wherein the height of the needles corresponds substantially to the spacing between the deflector arms and the further arms.
Claim 4
Dependent Claim
38 words
The invention of claim 1 wherein the central hub comprises upper and lower plates surrounded by a protective cylinder, the deflector arms being connected to the upper plate and the further arms being connected to the lower plate.
Claim 5
Dependent Claim
14 words
The invention of claim 3 wherein the upper and lower plates have protective covers.
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) | 1989-01-20 | 1989-07-22 | 1990-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-20 | 1993-07-22 | 1994-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-20 | 1997-07-22 | 1998-01-21 | $7700.00 | Window Closed / Lapsed |