EP0213874A2 - Appareil de protection contre la corrosion - Google Patents

Appareil de protection contre la corrosion Download PDF

Info

Publication number
EP0213874A2
EP0213874A2 EP86306401A EP86306401A EP0213874A2 EP 0213874 A2 EP0213874 A2 EP 0213874A2 EP 86306401 A EP86306401 A EP 86306401A EP 86306401 A EP86306401 A EP 86306401A EP 0213874 A2 EP0213874 A2 EP 0213874A2
Authority
EP
European Patent Office
Prior art keywords
reservoirs
reservoir
gel
open
substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86306401A
Other languages
German (de)
English (en)
Other versions
EP0213874B1 (fr
EP0213874A3 (en
Inventor
Martha F. Story
William H. Humphries
Glen W. Ragland
Lowell I. Koht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raychem Corp
Original Assignee
Raychem Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Raychem Corp filed Critical Raychem Corp
Priority to AT86306401T priority Critical patent/ATE82648T1/de
Publication of EP0213874A2 publication Critical patent/EP0213874A2/fr
Publication of EP0213874A3 publication Critical patent/EP0213874A3/en
Application granted granted Critical
Publication of EP0213874B1 publication Critical patent/EP0213874B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/70—Insulation of connections

Definitions

  • the present invention relates to apparatuses for protecting substrates against corrosion, electrical currents, and other adverse environmental effects.
  • a typical method used in the prior art is to dispose a viscous grease around the substrate in an attempt to keep adverse environmental contaminants, such as water, from corroding the substrate being pro­tected or providing an electrical path thereto.
  • Another common method used in the prior art has been to apply paint to the substrate. Both of these methods are disadvantageous in that insufficient corrosion pro­tection is afforded, re-entry is difficult, the protec­tion lasts for a relatively short period of time, they are labor intensive, and relatively expensive.
  • an appara­tus which includes a reservoir filled with a gel, the gel comprising a three dimensional open cell network, the gel being elastic, and having finite elongation characteristics, preferably in excess of 200%, and having a cone penetration between l00 and 350 (l0 -l mm), more preferably between 200 and 300 (l0 -l mm), and most preferably between 250 and 280 (l0 -l mm).
  • the reservoir is collapsible and has an open face through which gel can be disposed outward therefrom when a portion of the reservoir is collapsed such that upon collapsing the reservoir, the gel is dispensed through the open side of the reservoir and into a recess of a substrate to be protected such that the gel can completely fill the recess.
  • a plurality of reservoirs are interconnected by flexible bridging members which allows the use of rela­tively small reservoirs to be incorporated in an apparatus for protecting a plurality of contact areas on a substrate such that a major portion of the appara­tus does not contain gel so as to allow the apparatus to be disposed in installations where very little room is available for protecting the substrate.
  • Figures l-4 illustrate various embodiments of a collapsible reservoir 2 constructed in accordance with the teachings of the present invention.
  • Each of the reservoirs 2 includes a gel 3 therein.
  • the gel is preferably one of the types described in Debbaut, U.S. Serial Nos. 434,0ll, filed November l2, l982; 504,000, filed June l3, l983; 507,433, filed June 23, l983; and Chang, U.S. Serial No. 646,555, filed October 3l, l984; all assigned to the assignee of the present invention.
  • the gel can comprise a urethane, a silicone, or a non-silicone liquid rubber with low or no unsaturation which has been cross-­linked, with urethanes and silicones being preferred embodiments.
  • the gel is a material having an open loop three-dimensional network such that it is elastic and has a finite amount of elongation, and is relatively soft.
  • a preferred embodiment is to use a gel having a cone penetration between l00 and 350 (l0 -l mm), and an ultimate elongation of at least l00%, as measured in accordance with American National Standard Designation ASTM-D2l7 and ASTM-D638, respectively.
  • the cone penetration is between 200 and 300 (l0 -l mm), and more preferably between 250 and 280 (l0 -l mm).
  • the ultimate elongation is also more pre­ferably in excess of 200%, and more preferably in excess of 500%.
  • the gel is also pre­ferably elastic such that it tends to resist defor­mation and generates a restoration force upon being deformed.
  • the reservoir 2 is collapsible such that when sub­jected to a force indicated by arrow l0, the gel 3 within the reservoir 2 is displaced out of the reser­voir through an open side 4 thereof as illustrated in Figures l-4.
  • an open side 7 having a tun­nel cross-sectional configuration is formed on a side of the collapsible reservoir 2, this embodiment allowing a substrate to be protected to be inserted and/or removed from the reservoir from its side.
  • the gel have an ulti­mate elongation sufficiently large such that the gel does not tear when the reservoir collapses.
  • the collapsible container 2 is made of a material, or has an internal construction such that, the gel 3 has an adhesion strength thereto greater than the gels cohesive strength, with the adhesive strength of the gel to the substrate contact area it is intended to protect being preferably less than its cohesive strength and its adhesive strength to the substrate member, to facilitate re-entry.
  • the open side 4 is substantially circular in configuration, though ellip­tical, rectangular, or other shapes can be used where the substrate contact area to be protected is similarly shaped.
  • the open side 4 has a tapered skirt construction which has the advan­tage of enlarging a substrate contact area which can be surrounded and protected while minimizing a volume of the gel 3 required to fill the collapsible reservoir 2.
  • Each of the embodiments of Figures l-4 utilizes a collapsible reservoir 2 which collapses downward, with the embodiment of Figure l having a telescopic profile having a largest cross-sectional area thereof forming the open side through which the gel is dispensed, with a next smaller cross-sectional area 7 being adjacent thereto, with the smallest cross-sectional area l5 being on an opposite end of the reservoir than is the open side 4, as illustrated. Accordingly, if subjected to a force l0, the reservoir collapses such that the section l5 can be received within the section 7 which can be received within the section l7, if total collap­sibility is a design criterion.
  • the reservoir can be constructed such that only the section 5 collapses within the section 7.
  • this section l5 acts substantially like a piston, this being the mode of collapsing in the embodiments of Figures 2 and 3 wherein piston section 8 collapses within larger section l7 formed so as to define the open side 4, 7.
  • the collapsible reservoir 2 has a corrugated outer surface 24 which allows an accordian-type compression to occur when subjected to a force l0 so as to dispense gel out of the open side 4.
  • Each of the embodiments of Figures l-4 functionally allows a gel to be dispensed from the reservoir 2 upon being subjected to a force l0 such that the gel is available for filling a recess on a substrate having a contact area incorporating a recess to be protected.
  • Figure 5 illustrating a plurality of collapsible reservoirs 2 disposed in line on a strip ll, with the strip ll having a pressure sen­sitive adhesive l2 on a surface thereof.
  • the strip ll is disposed in contact with a substrate having a plurality of contact areas thereon to be protected such that the collapsible reservoirs 2 respectively line up with respective contact areas to be protected, and then the collapsible reservoir is subjected to a force causing the reservoirs to at least partially collapse so as to partially dispense gel therefrom so as to totally incapsulate the contact areas to be protected.
  • the apparatus l includes first and second collapsible reservoirs 2 and third and fourth reservoirs l4, the reservoirs l4 being either collapsible or non-­collapsible, though in the embodiment shown the reser­voirs l4 do not need to be collapsible.
  • the reservoirs 2 each have a substantially rectangular cross-sectional profile l3, since a recess 40 on a back side 26 of the jack 5 also has a rectangular cross-sectional profile.
  • the recess on the back side 26 of the jack 5 corresponds to a cavity through which contact screws or bolts 28 extend, the screws 28 being held in place by a metallic mounting bracket 43, shown in Figure l6. To environmentally protect the contents of the jack 5, the screws 28 and brackets 43 must all be protected.
  • the apparatus l further includes flexible briding members l9 interconnecting each of the reservoirs 2, l4.
  • the jack is first loosened from its mounting surface, such as a wall, as illustrated in Figure ll.
  • the collapsible reservoirs 2 are slid behind the jack 5 as illustrated in Figure l2 such that the rectangular cross-sectional profiles l3 of the collapsible reservoirs 2 are disposed over recess contact areas 40 on the back side 26 of the jack 5, as illustrated in Figures l2 and l6, and sub­sequently the phone jack is re-secured to its mounting surface.
  • the additional reservoirs l4 are wrapped around the jack 5 as illustrated by arrow 30 in Figure l4 and disposed over ends of the contact screws or bolts 28.
  • the gel 3 is readily elastically displaced around ends of the screws or bolts 28 and maintained in close and conforming contact therewith so long as held under some force by some additional force means l0', this force means being provided by jack cover 22 which is screwed over the phone jack 5, as illustrated in Figure l5.
  • the gel has a tacky surface so as to facilitate adhesion of the gel to the contact area of the substrate to be protected while being held under compression.
  • Figures ll-l6 is further advan­tageous in that a plurality of the reservoirs 2, l4 are interconnected by flexible bridging members l9 which allows a plurality of substrate contact areas to be protected utilizing a minimum amount of gel with the apparatus l occupying a minimum amount of room, as com­pared to other prior art constructions wherein relati­vely large reservoirs 2 are provided for enclosing entire substrates so as to protect various contact areas thereon.
  • Figures 7-l0 illustrate further alternative embodi­ments of the invention.
  • the apparatus 3l includes flexible bridging mem­bers l9 arranged such that eight reservoirs in total are included with the apparatus.
  • the jack 5 is removed from its mounting surface rather than simply loosened as in the embodiment of Figures ll-l6, and the apparatus 3l is disposed on the mounting surface such that the reservoirs 2 are disposed at a location such that they will come in contact with substrate recess contact areas 40 to be protected when the jack 5 is replaced on the mounting surface, with holes l6 being provided on the flexible bridging member for providing a means of properly orienting the apparatus 3l, and in particular the rectangular shaped open sides l3 of the collapsible reservoirs 2.
  • the holes l6 will line up with attachment holes 2l ( Figure ll) through which screws extend for attaching the phone jack 5 to its mounting surface and providing a force means l0.
  • the force means l0 causes the reservoirs to collapse, as previously explained.
  • reservoirs l4 are pivoted about a l80° semicircle in a manner similar to that illustrated by arrow 30 in Figure l4 so as to cover all the exposed and protruding contact screws or bolts 28.
  • the embodiment of Figure 3l is particularly advantageous in that it comprises only a single article, is easily installable, and provides an indica­tion means l6 confirming proper orientation of the apparatus.
  • orien­tation indication means is provided by the shape of the rectangular shaped open sides l3 of the reservoirs 2 which corresponds to the rectangular shape of the con­tact areas 40.
  • the embodiment of Figures 9 and l0 comprises first and second pieces 32, 33, with the first piece 32 con­taining a plurality of collapsible reservoirs 2 having the gel 3 disposed therein, the piece 32 being adapted for being located on the back side 26 of the phone jack 5 after its removal such that upon re-attachment of the phone jack 5 each of the reservoirs 2 is collapsed so as to exert gel therefrom into contact area recesses 40 on the back side of the phone jack 5. Subsequently, the piece 33 is disposed over the front side of the phone jack so as to encapsulate each of the bolts or screws 28, with the force means to the piece 33 being preferably provided by pressure sensitive adhesive 45 located on a side of the piece 33 in contact with the jack 5. Additional force means can also be provided by re-attaching the cover 22, as illustrated in Figure l5.
  • Figures 9 and l0 is advantageous in that relatively few pieces are required to ade­ quately protect a phone jack, indication means is pro­vided to facilitate proper installation thereof, and a plurality of reservoirs are interconnected with flexible bridging members thus reducing the component parts required to adequately protect the phone jack 5.
  • the invention is particularly applicable to any appli­cation where a substrate has a contact area which has a recess which requires protection, or in any application where it is desired that gel be pumped into a location relatively remote from a surface of the substrate to which the reservoir is attached, the invention also being useful in any application where opposite sides of a substrate need to be protected in a fast and effi­cient manner. Accordingly, the invention is to be limited only by the appended claims.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Centrifugal Separators (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Telephone Set Structure (AREA)
  • Sealing Material Composition (AREA)
  • Coating Apparatus (AREA)
EP86306401A 1985-08-20 1986-08-19 Appareil de protection contre la corrosion Expired EP0213874B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86306401T ATE82648T1 (de) 1985-08-20 1986-08-19 Korrosionschutzapparat.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US76755585A 1985-08-20 1985-08-20
US767555 1985-08-20

Publications (3)

Publication Number Publication Date
EP0213874A2 true EP0213874A2 (fr) 1987-03-11
EP0213874A3 EP0213874A3 (en) 1988-03-02
EP0213874B1 EP0213874B1 (fr) 1992-11-19

Family

ID=25079839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86306401A Expired EP0213874B1 (fr) 1985-08-20 1986-08-19 Appareil de protection contre la corrosion

Country Status (5)

Country Link
EP (1) EP0213874B1 (fr)
JP (1) JPH07118347B2 (fr)
AT (1) ATE82648T1 (fr)
CA (1) CA1280723C (fr)
DE (1) DE3687137T2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0457453A2 (fr) * 1990-05-18 1991-11-21 Dow Corning Corporation Procédé pour le transport d'un gel durci de matière organique ou de polysiloxane
US5195125A (en) * 1990-09-17 1993-03-16 Raychem Corporation Gel filled RJ11 connector
US5246383A (en) * 1990-09-17 1993-09-21 Raychem Corporation Gel filled electrical connector
US5376019A (en) * 1990-09-17 1994-12-27 Raychem Corporation Gel filled modular electrical connecting block
EP0771052A2 (fr) * 1990-09-04 1997-05-02 Raychem Corporation Connecteur de ligne téléphonique
US5952612A (en) * 1994-07-11 1999-09-14 Raychem Limited Electrical interconnections
US6971897B1 (en) 2003-10-29 2005-12-06 Tyco Electronics Corporation Gel-filled telephone jack

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186986A (en) * 1978-11-16 1980-02-05 Amp Incorporated Sealed splice
EP0108518A2 (fr) * 1982-10-12 1984-05-16 RAYCHEM CORPORATION (a Delaware corporation) Appareil de protection d'un substrat
EP0174165A1 (fr) * 1984-08-31 1986-03-12 RAYCHEM CORPORATION (a Delaware corporation) Composition gélatineuse

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098435A (en) * 1976-08-16 1978-07-04 Colgate-Palmolive Company Stabilized dentrifice containing initially physically separated normally reactive components
US4423918A (en) * 1981-08-18 1984-01-03 Minnesota Mining & Manufacturing Company Re-enterable service wire splice closure
US4504699A (en) * 1982-02-08 1985-03-12 Raychem Pontoise S.A. Sealable recoverable articles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186986A (en) * 1978-11-16 1980-02-05 Amp Incorporated Sealed splice
EP0108518A2 (fr) * 1982-10-12 1984-05-16 RAYCHEM CORPORATION (a Delaware corporation) Appareil de protection d'un substrat
EP0174165A1 (fr) * 1984-08-31 1986-03-12 RAYCHEM CORPORATION (a Delaware corporation) Composition gélatineuse

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0457453A3 (en) * 1990-05-18 1992-08-26 Dow Corning Corporation Method for transporting a cured organic or organosiloxane gel
EP0457453A2 (fr) * 1990-05-18 1991-11-21 Dow Corning Corporation Procédé pour le transport d'un gel durci de matière organique ou de polysiloxane
EP0771052A2 (fr) * 1990-09-04 1997-05-02 Raychem Corporation Connecteur de ligne téléphonique
EP0771052A3 (fr) * 1990-09-04 1997-07-02 Raychem Corp Connecteur de ligne téléphonique
US5246383A (en) * 1990-09-17 1993-09-21 Raychem Corporation Gel filled electrical connector
US5427547A (en) * 1990-09-17 1995-06-27 Raychem Corporation Gel filled modular electrical connecting block
US5562491A (en) * 1990-09-17 1996-10-08 Raychem Corporation Gel filled electrical connector
US5598455A (en) * 1990-09-17 1997-01-28 Raychem Corporation Alarm and test system for a digital added main line
US5601460A (en) * 1990-09-17 1997-02-11 Raychem Corporation Gel filled modular electrical connecting block
US5376019A (en) * 1990-09-17 1994-12-27 Raychem Corporation Gel filled modular electrical connecting block
US5195125A (en) * 1990-09-17 1993-03-16 Raychem Corporation Gel filled RJ11 connector
US5952612A (en) * 1994-07-11 1999-09-14 Raychem Limited Electrical interconnections
US6971897B1 (en) 2003-10-29 2005-12-06 Tyco Electronics Corporation Gel-filled telephone jack

Also Published As

Publication number Publication date
DE3687137D1 (de) 1992-12-24
DE3687137T2 (de) 1993-04-29
EP0213874B1 (fr) 1992-11-19
EP0213874A3 (en) 1988-03-02
ATE82648T1 (de) 1992-12-15
JPH07118347B2 (ja) 1995-12-18
JPS6244963A (ja) 1987-02-26
CA1280723C (fr) 1991-02-26

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