US3978581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a pin plug
Assignee: YUKO SHINDOSHO CO Ltd
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Filing: 1975-02-12
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Granted: 1976-09-07
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Expires: 1995-02-12
Abstract
Abstract A pin plug comprises a plug cover made of a substantially cylindrical body of a metal and having a front end divided into several branches and a pin made of a substantially tubular body of a metal and arranged inside of said plug cover coaxially therewith, two conductors of an electric wire being connected to said plug cover and pin, respectively by soldering or clamping. The pin plug further comprises a molded body of electrically insulating synthetic resin which covers the rear ends of said plug cover and pin and that end of the electric wire which is connected to said plug cover and pin, so that the plug cover and pin are fixed in position without using an electrically insulating plate.
Inventors
- 👤 Yoshihiko Miura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:53
CPC Classifications
H; H01; H01R; H01R24/00; H01R24/38; H01R24/40; H01R24/56; H01R24/568; H01R43/00; H01R43/04; H01R2103/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49174; Y10T29/49176; Y10T29/49204; Y10T29/49208; Y10T29/4922
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
156 words
A method for manufacturing a pin plug having a plug cover and a pin arranged inside of the plug cover coaxially therewith, comprising: forming a pin of a substantially tubular metal body; forming a plug cover consisting of a substantially cylindrical metal body having a substantially C-shaped cross section which defines a slit which is wider than a diameter of the pin; connecting two conductors of an electrical wire to the pin and plug cover, respectively, while the pin is positioned outside of the plug cover; inserting the pin inside of the plug cover through the slit formed in the plug cover; thereafter inserting the pin and plug cover into a mold member, the pin being disposed coaxially with the plug cover within the mold member; and then injecting synthetic resin inside of the mold member so as to fix the pin and plug cover in position by means of the synthetic resin body thus molded.
Claim 2
Independent Claim
156 words
A method for manufacturing a pin plug having a plug cover and a pin arranged inside of the plug cover coaxially therewith, comprising: forming a pin of a substantially tubular metal body; forming a plug cover consisting of a substantially cylindrical metal body having a substantially C-shaped cross section which defines a slit which is wider than a diameter of the pin; connecting two conductors of an electrical wire to the pin and plug cover, respectively, while the pin is positioned outside of the plug cover; inserting the pin inside of the plug cover through the slit formed in the plug cover; thereafter inserting the pin and plug cover into a mold member, the pin being disposed coaxially with the plug cover within the mold member; and then injecting synthetic resin inside of the mold member so as to fix the pin and plug cover in position by means of the synthetic resin body thus molded.
Claim 3
Dependent Claim
138 words
A method according to claim 1 further comprising: forming from an elongated metal plate a pin array having a number of pins each of which has a tubular body with a hemispherical tip and a U-shaped clamping terminal and strips for interconnecting successive pins as an integral body; forming from an elongated metal plate a plug cover array having a number of plug covers each of which has a substantially cylindrical body having a substantially C-shaped cross section to define a slit which is wider than a diameter of the pin and a U-shaped clamping terminal and strips for interconnecting successive plug covers as an integral body; clamping the two conductors of an electrical wire to the clamping terminals of the pin and plug cover, respectively; and thereafter separating the pin and plug cover from their arrays, respectively.
Claim 4
Dependent Claim
169 words
A method according to claim 1, wherein said mold member comprises a lower mold part, an upper mold part and a nest mold part, the lower and upper mold parts having cavities for accommodating the nest mold part and the nest mold part having a circular projection with a center hole and a substantially rectangular projection, and wherein said step of inserting the pin and plug cover into the mold member includes: the step of inserting the pin into the center hole of the nest mold part; the step of fitting the plug cover into the circular projection of the nest mold part with its rectangular projection being inserted in the slit formed in the plug cover; the step of inserting a portion of the nest mold part into the recess of the lower mold part; and the step of placing the upper mold part on the lower mold part with the remaining portion of the nest mold part being disposed in the recess of the upper mold part.
Claim 5
Dependent Claim
52 words
A method according to claim 2, wherein the electrical wire is a shielding wire having an outer shielding conductor and a center conductor and the step of clamping the outer shielding conductor to the plug cover includes a step of clamping the whole wire to the clamping terminal of the plug cover.
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) | 1979-09-07 | 1980-03-08 | 1980-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-07 | 1984-03-08 | 1984-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-07 | 1988-03-08 | 1988-09-07 | $7700.00 | Window Closed / Lapsed |