Patent US4955822A successfully refreshed from Google Patents.
US4955822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two way extension cord
Assignee: Individual
•
Filing: 1990-01-08
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Granted: 1990-09-11
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Expires: 2010-01-08
Abstract
Abstract A two-way electrical extension cord that includes two cord sections connected to a single male plug. The free ends of the cord sections are attached to female plugs that are designed to electrically mate with electric appliances, such as lamps, coffee makers, power drills, etc. Conductor wires in the separate cord sections are in electrical parallelism with each other so that the single male plug feeds current to both sets of wires.
Inventors
- 👤 Robert O. Look
- 👤 Deborah M. Pittman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:06
CPC Classifications
H; H01; H01R; H01R25/00; H01R25/003
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
172 words
A two way electrical extension cord comprising: two flexible electrical cables, each having at least two insulated wires running internally therealong, the wires of one cable not being directly attached to the wires of the other cable; each cable having first and second ends; each wire having first and second ends located at the corresponding ends of the associated cable; a female electrical plug attached to the first end of each cable, each plug comprising two insulated electrical socket elements electrically connected to the first ends of the wires in the associated cable; a single male electrical plug comprising a dielectric housing and two insulated electrical prong elements extending therefrom; said electrical cables having their second ends extending into said dielectric housing; one wire in each cable having its second end electrically connected to one prong element, the other wire in each cable having its second end electrically connected to the other prong element, whereby the wires in one said cable are in electrical parallelism with the wires in the other cable.
Claim 2
Dependent Claim
172 words
A two way electrical extension cord comprising: two flexible electrical cables, each having at least two insulated wires running internally therealong, the wires of one cable not being directly attached to the wires of the other cable; each cable having first and second ends; each wire having first and second ends located at the corresponding ends of the associated cable; a female electrical plug attached to the first end of each cable, each plug comprising two insulated electrical socket elements electrically connected to the first ends of the wires in the associated cable; a single male electrical plug comprising a dielectric housing and two insulated electrical prong elements extending therefrom; said electrical cables having their second ends extending into said dielectric housing; one wire in each cable having its second end electrically connected to one prong element, the other wire in each cable having its second end electrically connected to the other prong element, whereby the wires in one said cable are in electrical parallelism with the wires in the other cable.
Claim 3
Dependent Claim
26 words
The two way extension cord of claim 1, wherein the prong elements and the second ends of the cables are permanently encapsulated within the male plug.
Claim 4
Dependent Claim
59 words
The two way extension cord of claim 2, and further comprising a dielectric mandrel having two hollow sections, each hollow section being adapted to receive therethrough the second ends of two associated wires, said prong elements having sleeve sections adapted to fit over the hollow sections of the mandrel to electrically connect with the second ends of the wires.
Claim 5
Dependent Claim
37 words
The two way extension cord of claim 2, wherein said male plug has an endless circumferential groove therearound, said groove being adapted to serve as a reel structure for storage of either cable in a coiled condition.
Claim 6
Dependent Claim
36 words
The two way extension cord of claim 2, wherein said male plug has an undersurface located directly below the prong elements; said electrical cables extending vertically downwardly from said prong elements through the plug housing undersurface.
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) | 1993-09-10 | 1994-03-12 | 1994-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-10 | 1998-03-12 | 1998-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-10 | 2002-03-12 | 2002-09-11 | $7700.00 | Window Closed / Lapsed |