US4846709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced connection for a chemical connector and method of constructing therefor
Assignee: Furukawa Electric Co Ltd
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Filing: 1987-10-22
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Granted: 1989-07-11
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Expires: 2007-10-22
Abstract
Abstract A reinforcing fastener for fastening a chemical connector and an electronic circuit includes a substantially cylindrical section shaped element having edges defining an axial slit, wherein the element is formed of an alloy having both superelastic and shape memory properties. The slit is of such a size at a temperature below the Martensite transformation temperature of the alloy that the alloy is superelastically deformed when the slit is maintained at the same size while the alloy is above the Martensite transformation temperature. This results in the chemical connector being fastened to the electronic circuit with a substantially constant force over time.
Inventors
- 👤 Kenzo Kobayashi
- 👤 Hideto Tachibana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:20
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/36; H05K3/361; H05K3/365; H01; H01R; H01R4/00; H01R4/01; H01R12/00; H01R12/50; H01R12/59; H01R12/62
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
122 words
A reinforcing fastener for fastening a chemical connector and an electronic circuit, comprising a substantially cylindrical section shaped element having edges defining an axial slit, wherein said element is formed of an alloy having both superelastic and shape memory characteristics at a temperature above the Martensite transformation temperature of the alloy, said alloy being brought to a temperature above the Martensite transformation temperature after said slit is opened at a temperature below the Martensite temperature of the alloy and a connection part of the electronic circuit members is attached to said slit portion, whereby the chemical connector can be fastened to the electronic circuit with a substantially constant force over time due to the superelastic and shape memory characteristics of the alloy.
Claim 2
Dependent Claim
122 words
A reinforcing fastener for fastening a chemical connector and an electronic circuit, comprising a substantially cylindrical section shaped element having edges defining an axial slit, wherein said element is formed of an alloy having both superelastic and shape memory characteristics at a temperature above the Martensite transformation temperature of the alloy, said alloy being brought to a temperature above the Martensite transformation temperature after said slit is opened at a temperature below the Martensite temperature of the alloy and a connection part of the electronic circuit members is attached to said slit portion, whereby the chemical connector can be fastened to the electronic circuit with a substantially constant force over time due to the superelastic and shape memory characteristics of the alloy.
Claim 3
Dependent Claim
13 words
The fastener of claim 1 wherein said substantially cylindrical section is horseshoe shaped.
Claim 4
Dependent Claim
25 words
The fastener of claim 1 wherein said substantially cylindrical section is one from the group consisting of circular shaped, elliptical shaped and flattened elliptical shaped.
Claim 5
Dependent Claim
32 words
The fastener of claim 1 or 2 or 3 wherein the size of said slit at a temperature below the Martensite transformation temperature is substantially equal to a thickness of said connector.
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) | 1992-07-10 | 1993-01-09 | 1993-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-10 | 1997-01-09 | 1997-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-10 | 2001-01-09 | 2001-07-11 | $7700.00 | Window Closed / Lapsed |