Patent US341669A successfully refreshed from Google Patents.
Patent US4600261A successfully refreshed from Google Patents.
US4600261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for protection of electrical contacts
Assignee: Tyco International Ltd Bermuda
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Filing: 1982-10-12
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Granted: 1986-07-15
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Expires: 2002-10-12
Abstract
Abstract An apparatus and method for protection of electrical contacts. The protection apparatus ensures that the electrical contacts are protected when they are otherwise located in an adverse environment. To this end, the protection apparatus includes an insulating gel that is characterized by a cone penetration value from approximately 150 to 350 (10 -1 mm); an ultimate elongation of at least approximately 200%; a maximum tensile strength of approximately 20 psi; and a cohesive strength greater than its adhesive strength. The protection apparatus further includes a first means to contain the gel, a second means to retain the gel within the first means and a force means which acts on the first means so that the gel is maintained in compressive contact with the electrical contacts and substantially encapsulates a conductive portion of the electrical contacts.
Inventors
- 👤 Christian A. M. Debbaut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:29
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/08; H02G15/10; H01; H01B; H01B17/00; H01B17/56; H01B17/60; H01R; H01R4/00; H01R4/70; H02G15/003; H02G15/02; H02G15/04; H02G15/043; H02G15/18; H01R4/22; H01R4/72; H05; H05K; H05K3/00; H05K3/22; H05K3/28; H05K3/284; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204; Y10T29/49208; Y10T29/4921
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
132 words
A protection apparatus for an electrical contact, comprising: (a) an insulating gel characterized by: (1) a cone penetration value from approximately 150 to 350 (10 -1 mm); (2) an ultimate elongation of at least approximately 200%; (3) a maximum tensile strength of approximately 20 psi; (4) a cohesive strength greater than its adhesive strength; (b) first means to contain said gel; and (c) second means to retain said gel within said first means; and (d) force means which acts on said first means so that said gel is maintained in compressive contact with said electrical contact and substantially encapsulates a conductive portion of said electrical contact, whereby upon release of said force means and a disengagement of said first means from said electrical contact, said gel remains substantially with said first means.
Claim 2
Dependent Claim
132 words
A protection apparatus for an electrical contact, comprising: (a) an insulating gel characterized by: (1) a cone penetration value from approximately 150 to 350 (10 -1 mm); (2) an ultimate elongation of at least approximately 200%; (3) a maximum tensile strength of approximately 20 psi; (4) a cohesive strength greater than its adhesive strength; (b) first means to contain said gel; and (c) second means to retain said gel within said first means; and (d) force means which acts on said first means so that said gel is maintained in compressive contact with said electrical contact and substantially encapsulates a conductive portion of said electrical contact, whereby upon release of said force means and a disengagement of said first means from said electrical contact, said gel remains substantially with said first means.
Claim 3
Independent Claim
113 words
A method for protecting an electrical contact, comprising the steps: (a) providing an insulating gel characterized by: (1) a cone penetration value from approximately 150 to 350 (10 -1 mm); (2) an ultimate elongation of at least approximately 200%; (3) a maximum tensile strength of approximately 20 psi; (4) a cohesive strength greater than its adhesive strength; and (b) providing first means of containing said gel; (c) providing second means for retaining said gel within said first means; and (d) applying a force means for acting on said first means so that said gel is maintained in compressive contact with said electrical contact and substantially encapsulates a conductive portion of said electrical contact.
Claim 4
Independent Claim
113 words
A method for protecting an electrical contact, comprising the steps: (a) providing an insulating gel characterized by: (1) a cone penetration value from approximately 150 to 350 (10 -1 mm); (2) an ultimate elongation of at least approximately 200%; (3) a maximum tensile strength of approximately 20 psi; (4) a cohesive strength greater than its adhesive strength; and (b) providing first means of containing said gel; (c) providing second means for retaining said gel within said first means; and (d) applying a force means for acting on said first means so that said gel is maintained in compressive contact with said electrical contact and substantially encapsulates a conductive portion of said electrical contact.
Claim 5
Dependent Claim
121 words
A protection apparatus for a termination block of the type that includes a substrate that supports a plurality of environmentally unprotected terminal binding posts, comprising: (a) an isolating gel characterized by: (1) a cone penetration value from approximately 150 to 350 (10 -1 mm); (2) an ultimate elongation of approximately 200%; (3) a maximum tensile strength of approximately 20 psi; (4) a cohesive strength greater than its adhesive strength; (b) first means to contain said gel; (c) second means to retain said gel within said first means; and (d) force means which acts on said first means so that said gel is maintained in compressive contact with said binding posts and substantially encapsulates an electrically conductive portion of said binding posts.
Claim 6
Dependent Claim
121 words
A protection apparatus for a termination block of the type that includes a substrate that supports a plurality of environmentally unprotected terminal binding posts, comprising: (a) an isolating gel characterized by: (1) a cone penetration value from approximately 150 to 350 (10 -1 mm); (2) an ultimate elongation of approximately 200%; (3) a maximum tensile strength of approximately 20 psi; (4) a cohesive strength greater than its adhesive strength; (b) first means to contain said gel; (c) second means to retain said gel within said first means; and (d) force means which acts on said first means so that said gel is maintained in compressive contact with said binding posts and substantially encapsulates an electrically conductive portion of said binding posts.
Claim 7
Dependent Claim
91 words
A protection apparatus for an electrical contact, comprising: (a) an aliphatic polyurethane composition extended with an admixture of mineral oil and vegetable oil from approximately 70 to 80%, the ratio of mineral oil to vegetable oil being approximately 0.7 to 2.4; (b) first means to contain a composition; (c) second means to retain said composition within said first means; (d) force means which acts on said first means so that said composition is maintained in compresive contact with said electrical contact and substantially encapsulates a conductive portion of said electrical contact.
Claim 8
Dependent Claim
91 words
A protection apparatus for an electrical contact, comprising: (a) an aliphatic polyurethane composition extended with an admixture of mineral oil and vegetable oil from approximately 70 to 80%, the ratio of mineral oil to vegetable oil being approximately 0.7 to 2.4; (b) first means to contain a composition; (c) second means to retain said composition within said first means; (d) force means which acts on said first means so that said composition is maintained in compresive contact with said electrical contact and substantially encapsulates a conductive portion of said electrical contact.
Claim 9
Dependent Claim
31 words
A protection apparatus as recited in claims 1 or 3, wherein said first means to contain said gel comprises a housing that includes side walls, end walls and a bottom wall.
Claim 10
Dependent Claim
34 words
A protection apparatus as recited in claim 5, wherein said first means to contain said gel further comprises a plurality of partitions, wherein each partition included in said plurality encapsulates a terminal binding post.
Claim 11
Dependent Claim
13 words
A protection apparatus as recited in claim 5, wherein said housing is plastic.
Claim 12
Dependent Claim
38 words
A protection apparatus as recited in claims 1 or 3, wherein said second means to retain said gel includes means to provide a surface area of said first means greater than a surface area of said electrical contact.
Claim 13
Dependent Claim
21 words
A protection apparatus as recited in claim 8, wherein said second means includes a mechanical protrusion located within said first means.
Claim 14
Dependent Claim
27 words
A protection apparatus as recited in claim 3, wherein said force means is a directional force that acts along an axis defined by a terminal binding post.
Claim 15
Dependent Claim
30 words
A protection apparatus as recited in claim 3, wherein said force means is realized by a nut and bolt assembly which compresses said first means against said terminal binding post.
Claim 16
Dependent Claim
19 words
A protection apparatus as recited in claims 1 or 3, wherein said gel is substantially inert towards said substrate.
Claim 17
Dependent Claim
18 words
A protection apparatus as recited in claims 1 or 3 wherein said gel is hydrolytically stable and moisture-insensitive.
Claim 18
Dependent Claim
15 words
A protection apparatus as recited in claims 1 or 3, wherein said gel is tacky.
Claim 19
Dependent Claim
15 words
A protection apparatus as recited in claims 1 or 3, wherein said gel is non-tacky.
Claim 20
Dependent Claim
25 words
A protection apparatus as recited in claims 1 or 3, wherein said gel has a volume resistivity of at least approximately 10 9 ohm centimeters.
Claim 21
Dependent Claim
13 words
A telephone circuit wire connector environmentally protected per the process of claim 2.
Claim 22
Dependent Claim
12 words
A telephone termination block environmentally protected per the process of claim 2.
Claim 23
Dependent Claim
12 words
A telephone splice connector environmentally protected per the process of claim 2.
References Cited (Backward Citations)
US30321A
Cited
US31389A
Cited
US3228820A
Cited
US3187088A
Cited
US3485787A
Cited
US3427393A
Cited
US3619481A
Cited
US3649436A
Cited
US3678174A
Cited
US3718619A
Cited
US3731258A
Cited
US3928704A
Cited
US3801532A
Cited
US3897129A
Cited
US3827999A
Cited
US4171998A
Cited
USRE30321E
Cited
US3916082A
Cited
US3929949A
Cited
US4025717A
Cited
US3985951A
Cited
US4176239A
Cited
USRE31389E
Cited
US4369284A
Cited
US4297155A
Cited
US4168258A
Cited
US4281210A
Cited
US4231986A
Cited
GB2070658A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |