Patent US4425017A successfully refreshed from Google Patents.
US4425017A
Expired / Lapsed
US
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Electrical connector including hydrophobic gel composition
Assignee: International Standard Electric Corp
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Filing: 1981-05-19
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Granted: 1984-01-10
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Expires: 2001-05-19
Abstract
Abstract A hydrophobic gel composition comprises an aluminium stearate, liquid paraffin and polyisobutylene. The gels are prepared by first blending together aluminium stearate and liquid paraffin. The mix is then heated to 180°-200° C. and a quantity of polybutylene preheated to 150° C. is added, after which the composition is allowed to cool slowly to ambient temperature. The compositions are particularly useful in electrical connectors.
Inventors
- 👤 Howard K. C. Chan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:06
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/52; H01R13/523; C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08L; C08L23/00; C08L23/02; C08L23/18; C08L23/20; C08L23/22
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
56 words
An electrical connector having a first connection element located in a chamber closed by a diaphragm which is permeable by a further connection element to mate in the chamber with a first connection element, the chamber containing an electrically insulating hydrophobic gel composition consisting of gel forming proportions of an aluminium stearate, liquid paraffin and polyisobutylene.
Claim 2
Dependent Claim
56 words
An electrical connector having a first connection element located in a chamber closed by a diaphragm which is permeable by a further connection element to mate in the chamber with a first connection element, the chamber containing an electrically insulating hydrophobic gel composition consisting of gel forming proportions of an aluminium stearate, liquid paraffin and polyisobutylene.
Claim 3
Dependent Claim
39 words
The connector of claim 1 wherein the gel composition consists of aluminium distearate, liquid paraffin and polyisobutylene, and wherein the gel composition lies within the shaded region of the phase composition diagram of FIG. 1 of the accompanying drawing.
Claim 4
Dependent Claim
26 words
The connector of claim 2 wherein the gel composition consists of 70 grams of aluminium distearate, 1 liter of liquid paraffin and 1 liter of polyisobutylene.
Claim 5
Dependent Claim
66 words
An electrical connector having first and second connector members each having one or more contacts and wherein one said connector member has a gel chamber disposed such that mating of the connector contacts is effected within the chamber, the chamber being filled, when the connector is in use, with a hydrophobic gel composition consisting of gel forming proportions of an aluminium stearate, liquid paraffin and polyisobutylene.
Claim 6
Dependent Claim
66 words
An electrical connector having first and second connector members each having one or more contacts and wherein one said connector member has a gel chamber disposed such that mating of the connector contacts is effected within the chamber, the chamber being filled, when the connector is in use, with a hydrophobic gel composition consisting of gel forming proportions of an aluminium stearate, liquid paraffin and polyisobutylene.
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) | 1987-01-09 | 1987-07-11 | 1988-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-09 | 1991-07-11 | 1992-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-09 | 1995-07-11 | 1996-01-10 | $7700.00 | Window Closed / Lapsed |