US4219252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric plug connection
Assignee: Individual
•
Filing: 1978-11-14
•
Granted: 1980-08-26
•
Expires: 1998-11-14
Abstract
Abstract An electric plug connection comprises a jaw-type connecting member in whose opening a conductor can be introduced and clamped. A hoop of sprung material is pushed over the connecting member, the two arms of the hoop pressing together the two arms of the connecting member. The hoop is formed as a sprung sheet metal member which is bent together along a back running parallel to its two arms.
Inventors
- 👤 Karl Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:42
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/02; H05B3/04; H01; H01R; H01R4/00; H01R4/28; H01R4/48
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
172 words
An electric plug connection, comprising: a jaw-type connecting member, having an opening into which a conductor can be inserted and clamped, the connecting member having two arms and comprising a connecting section and an adjacent conductor section, being formed from a single sheet metal blank which is bent together, lying doubled over in the connecting section; and, a hoop of sprung material, pushed over the connecting member and having two arms pressing the connector member arms together, and a back, the hoop being formed from a sprung sheet metal member which is bent together along the back, parallel to its arms, the back of the hoop being shaped to form an arched cross member, lying in a region of the connecting section remote from the opening, the two connecting member arms lying parallel to each other and being steadily pressed together by direct contact with the cross member in the region, remaining together even during the insertion, the hoop arms further providing an initial tension pressing the connecting arms toward each other.
Claim 2
Dependent Claim
172 words
An electric plug connection, comprising: a jaw-type connecting member, having an opening into which a conductor can be inserted and clamped, the connecting member having two arms and comprising a connecting section and an adjacent conductor section, being formed from a single sheet metal blank which is bent together, lying doubled over in the connecting section; and, a hoop of sprung material, pushed over the connecting member and having two arms pressing the connector member arms together, and a back, the hoop being formed from a sprung sheet metal member which is bent together along the back, parallel to its arms, the back of the hoop being shaped to form an arched cross member, lying in a region of the connecting section remote from the opening, the two connecting member arms lying parallel to each other and being steadily pressed together by direct contact with the cross member in the region, remaining together even during the insertion, the hoop arms further providing an initial tension pressing the connecting arms toward each other.
Claim 3
Dependent Claim
30 words
A plug connecting according to claim 1, wherein the hoop is of the same basic shape as the connecting member in the region of its arms and substantially covers them.
Claim 4
Dependent Claim
31 words
A plug connection according to claim 1, wherein the arch cross-member forming the back of the hoop projects beyond a longitudinal edge of the arms of the hoop and connecting member.
Claim 5
Dependent Claim
21 words
A plug connection according to claim 1, wherein the sheet metal blank for the connecting member is of a ladder-shaped configuration.
Claim 6
Dependent Claim
21 words
A plug connection according to claim 1, wherein the hoop is formed of a sheet metal blank having a U-shaped configuration.
Claim 7
Dependent Claim
24 words
A plug connection according to claim 1, wherein the connecting member and the hoop have intermeshing stamped projections and recesses for reciprocal positional security.
Claim 8
Dependent Claim
22 words
A plug connection according to claim 1, wherein the connecting member has intermeshing teeth on the longitudinal edges of its two arms.
Claim 9
Dependent Claim
36 words
A plug connection according to claim 1, wherein lateral members are provided adjacent sides of the opening in the connecting member, the lateral members each being integral with, and bent back from one of the arms.
Claim 10
Dependent Claim
18 words
A plug connection according to claim 1, wherein the connecting member arms have roughened or corrugated inner surfaces.
Claim 11
Dependent Claim
29 words
A plug connection according to claim 1, wherein the pressed together portions of the connecting member and hoop in the conductor section are joined together by respective arched cross-members.
Claim 12
Dependent Claim
18 words
A plug connection according to claim 10, wherein the cross-members project beyond a longitudinal edge of the strips.
Claim 13
Dependent Claim
20 words
A plug connection according to claim 1, wherein the connecting member has a guide groove merging into its inlet opening.
Claim 14
Dependent Claim
22 words
A plug connection according to claim 12, wherein the hoop has a configuration adapted to the said guide groove for positional security.
References Cited (Backward Citations)
US1969991A
Cited
GB402474A
Cited
GB472945A
Cited
US2295266A
Cited
US2574608A
Cited
US2654076A
Cited
GB759534A
Cited
FR1431890A
Cited
US3914008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-08-26 | 1984-02-25 | 1984-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-26 | 1988-02-25 | 1988-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-26 | 1992-02-25 | 1992-08-26 | $7700.00 | Window Closed / Lapsed |