Patent US4155617A successfully refreshed from Google Patents.
US4155617A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric plugs
Assignee: Individual
•
Filing: 1977-08-03
•
Granted: 1979-05-22
•
Expires: 1997-08-03
Abstract
Abstract The plug comprises a plug base having an assembly cavity which has inserted therein two pole contacts through the top portion of the plug base. A squeezing arm is formed on the pole plate for holding the wire in the pre-formed recessed hole. A fixing latch is further provided to fasten the pole contact and wire from the top of the plate. By this squeezing means, the electric wire is fixed sturdily and the plug can be easily assembled.
Inventors
- 👤 Jui-Jung Hung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:41
CPC Classifications
H; H01; H01R; H01R24/00; H01R24/28; H01R2103/00; H01R4/00; H01R4/28; H01R4/50
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
130 words
An electrical plug comprising a plug base, two fixing latches and two contact plates: said plug base having two assembly cavities therein, two contact slots perpendicular to said assembly cavities, two latch tunnels and two wire holes; each said contact plate being substantially L-shaped with one arm extending through one of said contact slots and the other arm positioned in one of said assembly cavities; said wire holes extending from one side of the plug base into the assembly cavities, whereby when wires are inserted into said wire holes and said contact plates are inserted through said assembly cavities into said contact slots, the said other arm engages the wire and when said fixing latches are inserted into said latch tunnels, said latches fix the wire against said other arm.
Claim 2
Dependent Claim
130 words
An electrical plug comprising a plug base, two fixing latches and two contact plates: said plug base having two assembly cavities therein, two contact slots perpendicular to said assembly cavities, two latch tunnels and two wire holes; each said contact plate being substantially L-shaped with one arm extending through one of said contact slots and the other arm positioned in one of said assembly cavities; said wire holes extending from one side of the plug base into the assembly cavities, whereby when wires are inserted into said wire holes and said contact plates are inserted through said assembly cavities into said contact slots, the said other arm engages the wire and when said fixing latches are inserted into said latch tunnels, said latches fix the wire against said other arm.
Claim 3
Dependent Claim
22 words
The electric plug of claim 1 wherein said latch tunnels are aligned parallel to each other and perpendicular to said contact slots.
Claim 4
Dependent Claim
38 words
The electric plug of claim 1 wherein said fixing latches each comprise a head portion, a center portion and a tail portion, said head portion having a curvingly reduced cross-section and said tail portion has a transverse groove.
Claim 5
Dependent Claim
14 words
The electric plug of claim 1 wherein said contact plates are made of copper.
Claim 6
Dependent Claim
19 words
The electric plug of claim 1 wherein said plug base and said fixing latches are made of a plastic.
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) | 1982-05-21 | 1982-11-20 | 1983-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-21 | 1986-11-20 | 1987-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-21 | 1990-11-20 | 1991-05-22 | $7700.00 | Window Closed / Lapsed |