Patent US4313148A successfully refreshed from Google Patents.
US4313148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grounding apparatus
Assignee: Individual
•
Filing: 1980-04-21
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Granted: 1982-01-26
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Expires: 2000-04-21
Abstract
Abstract A grounding apparatus including an electric plug for engaging with a conventional electric receptacle having conventional energized and grounding contacts, the plug including a grounding lug for engaging the grounding contact and one or more dummy lugs for engaging the energized contacts of the receptacle; conductor means for connection at one end with a device to be grounded; and means in the plug for interconnecting the other end of the conductor means with the grounding lug.
Inventors
- 👤 Robert B. Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:05
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/44; H01R13/443; H01R4/00; H01R4/58; H01R4/64; H01R13/648; H01R13/652
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
77 words
A grounding apparatus comprising: an electric plug for engaging with a conventional electrical receptacle having a conventional grounding contact and two energized contacts, said plug including a grounding lug for engaging said grounding contact and two dummy lugs for engaging the energized contacts of the receptacle; conductor means for connection at one end with a device to be grounded; and means in said plug for interconnecting the other end of said conductor means with said grounding lug.
Claim 2
Dependent Claim
77 words
A grounding apparatus comprising: an electric plug for engaging with a conventional electrical receptacle having a conventional grounding contact and two energized contacts, said plug including a grounding lug for engaging said grounding contact and two dummy lugs for engaging the energized contacts of the receptacle; conductor means for connection at one end with a device to be grounded; and means in said plug for interconnecting the other end of said conductor means with said grounding lug.
Claim 3
Dependent Claim
15 words
The grounding apparatus of claim 1 in which said conductor means includes a series resistance.
Claim 4
Dependent Claim
17 words
The grounding apparatus of claim 1 in which said plug includes a terminal on said grounding lug.
Claim 5
Dependent Claim
26 words
The grounding apparatus of claim 1 including a terminal in said plug isolated from said grounding lug and a resistor interconnecting said terminal and grounding plug.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-01-25 | 1985-07-27 | 1986-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-25 | 1989-07-27 | 1990-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-25 | 1993-07-27 | 1994-01-26 | $7700.00 | Window Closed / Lapsed |