US3622944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical connector
Assignee: TOKAI DENKI KK
•
Filing: 1969-12-05
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Granted: 1971-11-23
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Expires: 1989-12-05
Abstract
Abstract In this electrical connector, an electrical connection is made through a low melting point alloy consisting essentially of gallium and indium which is liquid at room temperature. In order to retain the low melting point alloy, contact points may be made of a porous solid material impregnated with the low melting point alloy, or may be made of cadmium, bismuth or lead having interfaces between which the low melting alloy is precipitated. In any case, gallium may be provided at one contact point and indium at the other contact point, so that when the two points are brought together the low melting point alloy is formed.
Inventors
- 👤 Takane Tsuchiya
- 👤 Tetsuya Ohtani
- 👤 Akira Sato
- 👤 Syoichi Ito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:54
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/22; H01R13/00; H01R13/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
65 words
An electrical connector comprising two members which are adapted to be assembled to form an electrical connection, each member having an electrically conducting element which extends adjacent to an electrically conducting element of the other member, and a body of a low melting point alloy consisting essentially of gallium and indium which is a liquid at room temperature, forming a junction between the two elements.
Claim 2
Dependent Claim
65 words
An electrical connector comprising two members which are adapted to be assembled to form an electrical connection, each member having an electrically conducting element which extends adjacent to an electrically conducting element of the other member, and a body of a low melting point alloy consisting essentially of gallium and indium which is a liquid at room temperature, forming a junction between the two elements.
Claim 3
Dependent Claim
33 words
An electrical connector according to claim 1 comprising, in contact with the low melting point alloy, a metal which diffuses thereinto and thereby converts the low melting point alloy into a solid alloy.
Claim 4
Dependent Claim
80 words
An electrical connector according to claim 1 wherein each member has an electrically conducting contact which is directly engageable by an electrically conducting contact of the other member to form a temporary connection, and an electrically conducting element which is adapted to be interposed between the two contacts to form a permanent electrical connection between the two contacts through a body of a low melting point alloy consisting essentially of gallium and indium which is a liquid at room temperature.
Claim 5
Dependent Claim
25 words
An electrical connector according to claim 1 wherein an electrical connection is made through a porous solid material impregnated with the low melting point alloy.
Claim 6
Dependent Claim
40 words
An electrical connector accordIng to claim 1 comprising a connecting member having a surface comprising indium, and a second connecting member having a surface which comprises gallium and is engageable with the surface comprising indium to form an alloy therewith.
Claim 7
Dependent Claim
34 words
An electrical connector according to claim 5 wherein the second connecting member has a surface comprising a material of the class consisting of cadmium, bismuth and lead having interfaces between which gallium is precipitated.
References Cited (Backward Citations)
US3023393A
Cited
US3184303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |