US3771103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for the installation of electrical cables
Assignee: OGOMAT NV RES
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Filing: 1972-01-24
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Granted: 1973-11-06
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Expires: 1992-01-24
Abstract
Abstract A system for installation of electrical conductors in buildings, comprising a flat cable having a base with open grooves in which bare conductors may be inserted, further comprising cable ducts or channels into which such cables may be introduced, which ducts may be attached to a wall or may be suspended on a ceiling in a building, and further comprising contact means which may be detachably clamped in a cable duct, said contact means having contact pins or strips which contact the conductors of such a cable when this contact means is clamped in the cable duct.
Inventors
- 👤 G Attema
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:22
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/064; E04B9/18; H; H01; H01B; H01B7/00; H01B7/08; H01B7/0823; H01R; H01R13/00; H01R13/44; H01R13/447; H01R13/453; H01R13/4538; H01R25/00; H01R25/14; H01R25/142; H02; H02G; H02G3/00; H02G3/02; H02G3/04; H02G3/0406; H02G3/0418
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
296 words
A system for installing plural, preferably round conductors for establishing a cable as well as connections to the said conductors of the cable, comprising: a flexible, elongated base element of rectangular cross section and made of electrically insulative material, the base having plural internal, parallel, longitudinal grooves individually receiving the conductors, further having narrow slots communicating with and for access to said grooves and through which the condcutors pass when being placed into the grooves, the slots being narrower than the conductors; a cable duct having U-shaped cross section receiving the base element in abutment with the base of the U, the inside of the legs of the U being provided with ribs behind which the base element rests when inserted into the duct, for retaining the base element in the duct, the said slots in the base element open to the open portion of the U, the legs of the U having additional ribs near or at the respective ends of the legs and facing each other; support means received in said duct, above the base element therein, and having outwardly extending resilient positioning members which engage behind said additional ribs to retain the support means in the duct in definite position relative to the base element therein; plural contact pins of rectangular cross section and having flat end faces held in the support means and extending therefrom, and having relative alignment with the conductors in the grooves of the base member; and resilient means in the support means for urging the individual contact pins through the slots in said member and into contact making engagement with the respective conductors therein, and for maintaining said contact making engagement, the sides of said slots resiliently gripping said contact pins as they are inserted through said slots.
Claim 2
Independent Claim
296 words
A system for installing plural, preferably round conductors for establishing a cable as well as connections to the said conductors of the cable, comprising: a flexible, elongated base element of rectangular cross section and made of electrically insulative material, the base having plural internal, parallel, longitudinal grooves individually receiving the conductors, further having narrow slots communicating with and for access to said grooves and through which the condcutors pass when being placed into the grooves, the slots being narrower than the conductors; a cable duct having U-shaped cross section receiving the base element in abutment with the base of the U, the inside of the legs of the U being provided with ribs behind which the base element rests when inserted into the duct, for retaining the base element in the duct, the said slots in the base element open to the open portion of the U, the legs of the U having additional ribs near or at the respective ends of the legs and facing each other; support means received in said duct, above the base element therein, and having outwardly extending resilient positioning members which engage behind said additional ribs to retain the support means in the duct in definite position relative to the base element therein; plural contact pins of rectangular cross section and having flat end faces held in the support means and extending therefrom, and having relative alignment with the conductors in the grooves of the base member; and resilient means in the support means for urging the individual contact pins through the slots in said member and into contact making engagement with the respective conductors therein, and for maintaining said contact making engagement, the sides of said slots resiliently gripping said contact pins as they are inserted through said slots.
Claim 3
Dependent Claim
21 words
A system according to claim 1, further comprising an elongate cover hingedlY connected to one longitudinal edge of the base element.
Claim 4
Dependent Claim
24 words
A casing according to claim 1 wherein at least one longitudinal edge of the base element has additional slots to augment the flexibility thereof.
Claim 5
Dependent Claim
37 words
A system according to claim 1, wherein the base element is provided with a cover, connected along one longitudianl edge thereof which can be held to the base adjacent the other longitudinal edge by snap connections means.
Claim 6
Dependent Claim
32 words
A system according to claim 2, wherein the cover is provided with a pulling lip which is arranged to rest against the side wall of the duct when the cover is closed.
Claim 7
Dependent Claim
15 words
A system according to claim 1 wherein the cable duct is an extruded plastics section.
Claim 8
Dependent Claim
33 words
A system according to claim 1 wherein the cable duct has at least one additional substantially C- or U-section portion of which the base is formed by one leg of the main section.
Claim 9
Dependent Claim
73 words
A system according to claim 7, comprising a fixing component fitting into the additional C-section portion, the length of which component is not smaller than the largest interior width of the C-section, whereas the width of said component is smaller than the width of the opening of this section, which component is or can be connected either to a suspension rod or to a fixing-screw for a cover plate for the cable duct.
Claim 10
Dependent Claim
27 words
A system according to claim 1, wherein said resilient positioning members comprise pairs of resilient claws which are movable inwardly to free the support from the duct.
Claim 11
Dependent Claim
31 words
A system according to claim 9, wherein the claws have an opening into which the noses of a pair of pliers can be inserted so as to move the claws inwardly.
Claim 12
Dependent Claim
58 words
A system as in claim 2, the support means including a box-like housing having slots through which the contact pins extend, and contact pin holders in said housing, each for holding one of said contact pins in position for traversing the respective slots in the housing and a respective aligned one of said slots in the base element.
Claim 13
Dependent Claim
32 words
A system according to claim 11, wherein the said base member is provided with a plastic material covering the face thereof at the side to which the longitudinal grooves and slots open.
Claim 14
Dependent Claim
38 words
A system according to claim 4, wherein said snap action means comprises a beaded longitudinal rib on the cover and arranged to engage in a complementary longitudinal additional groove in the base member when the cover is closed.
Claim 15
Dependent Claim
45 words
A system according to claim 1, and including individual holders for each contact pin, said resilient means including individual resilient elements, each contact pin being resiliently supported in the respective holder by the respective resilient element, each said holder being releasably connected to the support.
Claim 16
Dependent Claim
47 words
A system as in claim 1, said support means including a bar with a plurality of apertures, each receiving one of said electrical contact pins; said resilient means being springs on the bar for biasing the contact pins into engagement with the respective conductors in the grooves.
Claim 17
Dependent Claim
109 words
A system according to claim 1, wherein the said support means is of substantially rectangular contour of which the width is not larger than the width of the U- opening in the cable duct, said support means having a plurality of rectangular section slots distributed over the length of the support means, the longitudinal axis of each slot extending substantially parallel to the longitudinal dimension of the support means, and which slots are so staggered transversely that each one is located opposite a conductor of the base member when the support means as disposed in the duct, said contact pins being strips and resiliently supported in the respective slots.
Claim 18
Dependent Claim
17 words
A system according to claim 11, comprising a dove-tail connection between the first and the second components.
Claim 19
Dependent Claim
48 words
A system according to claim 16, wherein the support means comprises a first and second component, the first component carrying the resilient positioning members and the contact strips, the sEcond component being detachably secured to the first component and including oppositely directed support parts for the first component.
Claim 20
Dependent Claim
22 words
A system as in claim 11, the resilient means being plural springs, respectively held by and bearing against a contact pin holder.
Claim 21
Dependent Claim
25 words
A system as in claim 18, including partitions in the housing to subdivide the space therein and to separate the holders therein from each other.
Claim 22
Dependent Claim
43 words
A system according to claim 12, wherein the plastics material has such characteristics that it is being pierced by a contact pin without appreciably removing material of the layer, whereby the thus-formed opening will substantially close up after withdrawal of the contact pin.
Claim 23
Dependent Claim
47 words
A system according to claim 1, wherein said resilient positioning members include clamping claws and a longitudinally slidable rod by means of which the clamping claws as situated near longitudinal sides of the support means can be turned outward to engage the sides of the cable duct.
Claim 24
Dependent Claim
32 words
A system according to claim 13, wherein the rod is provided with cams by means of which the contact strips are biassed towards the support means when the claws are turned outwardly.
Claim 25
Dependent Claim
63 words
A system as in claim 14, wherein each holder consists of a substantially C-shaped or U-shaped frame and being provided with connection means, each contact pin being a strip protruding through a slot in a leg of the respective frame, and wherein said resilient elements are springs, respectively acting between the opposite leg of the frame and a cross-piece of the contact strip.
Claim 26
Dependent Claim
50 words
A system according to claim 14, wherein the cross-piece of said contact strip extends at right angles to the main part thereof and can slide along an adjacent connecting leg of the frame, the spring being a hairpin spring which exerts a bias on the cross-piece towards this connecting leg.
Claim 27
Dependent Claim
59 words
A system according to claim 22, wherein the contact pins are resilient strips and are so shaped that they extend substantially at right angles above the support means, and the parts extending above the support means are maintained in position under the rod and act as springs for biasing these parts of the strips as extending beyond the rod.
Claim 28
Dependent Claim
45 words
A system according to claim 1, wherein one of said contact pins is provided to establish a connection with a ground conductor of the cable, before the coupling operation of the contact device with a duct, and protrudes farther outward than the other contact pins.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |