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US3769445A Expired / Lapsed US ⏱️ 0.0 years remaining

Ground conduit construction

Assignee: Individual
•
Filing: 1972-02-10
•
Granted: 1973-10-30
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Expires: 1992-02-10
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Abstract

Abstract An apparatus for carrying electrical cables or pipes and electrical connection devices in buildings, comprising a longitudinally elongated continuous duct adapted to be positioned in the ground or foundation and having a generally rectangular Ushaped transverse cross section and an opened top and a removable cover closing said top. The duct has a plurality of longitudinally extending walls dividing the duct into at least one cable compartment extending over the entire length of said duct, and at least one electrical component assembly compartment adjacent to and co-extensive in length with said cable compartment and including connection assembly components detachably fixed at selected points along the length of the electrical component compartment. In the preferred arrangement four longitudinally extending compartments are provided which are bounded by walls which extend substantially the complete height or depth of the duct. One of the two adjacent cable compartments, however, is advantageously provided with a wall separating the two adjacent cable compartments which does not extend into the complete height of the duct and which is closed by a separate cover arranged within the duct.

Inventors

  • 👤 O Bregenzer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 22:45
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/28; H02G3/283

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 243 words
An apparatus for accommodating electrical cables and connecting components in a ground installation for a building, comprising a ground duct having a substantially rectangular Ushaped transverse cross section, at least three laterally spaced longitudinal partition walls extending upwardly from the bottom interior of said duct and extending along the complete length of said duct and dividing the interior of said duct into at least one cable compartment on each side and an intermediate electrical connection component compartment, a plurality of electrical components arranged at selected lengths along the length of said electrical connection component compartment, a partition wall bounding at least one side of said electrical connection compartment having openings arranged at regular spaced intervals for the passage of cables therethrough into an adjacent compartment, at least onE of said partition walls being of a height less than the height of said duct, said duct having a wall on each side with an upwardly extending hook-shaped recess, a top cover having a flange on each side engaged into the upwardly extending hook-shaped recess of said duct, said top cover including a plurality of portions of selected longitudinal length which are removable and having means for the passage of a cable therethrough, each of the outer side walls of said duct including an outwardly and downwardly extending hook-shaped top portion, and a vertical support having its top engaged in the underside of said outwardly and downwardly extending hook-shaped top portion to support said duct.
Claim 2
Independent Claim 243 words
An apparatus for accommodating electrical cables and connecting components in a ground installation for a building, comprising a ground duct having a substantially rectangular Ushaped transverse cross section, at least three laterally spaced longitudinal partition walls extending upwardly from the bottom interior of said duct and extending along the complete length of said duct and dividing the interior of said duct into at least one cable compartment on each side and an intermediate electrical connection component compartment, a plurality of electrical components arranged at selected lengths along the length of said electrical connection component compartment, a partition wall bounding at least one side of said electrical connection compartment having openings arranged at regular spaced intervals for the passage of cables therethrough into an adjacent compartment, at least onE of said partition walls being of a height less than the height of said duct, said duct having a wall on each side with an upwardly extending hook-shaped recess, a top cover having a flange on each side engaged into the upwardly extending hook-shaped recess of said duct, said top cover including a plurality of portions of selected longitudinal length which are removable and having means for the passage of a cable therethrough, each of the outer side walls of said duct including an outwardly and downwardly extending hook-shaped top portion, and a vertical support having its top engaged in the underside of said outwardly and downwardly extending hook-shaped top portion to support said duct.
Claim 3
Dependent Claim 46 words
An apparatus, according to claim 1, wherein said duct comprises a plurality of individual profile members arranged in side by side juxtaposition and having vertical walls defining respective said partition walls, each profile member defining at least one wall of a separate compartment within the duct.
Claim 4
Dependent Claim 18 words
An apparatus, according to claim 1, wherein said duct comprises a single member with integrally formed partition walls.
Claim 5
Dependent Claim 24 words
An apparatus, according to claim 1, including adjustable means engaged with the underside of said duct for supporting said duct at a selected height.

References Cited (Backward Citations)

US1611325A Cited
GB583424A Cited
GB961933A Cited
US3471629A Cited
CH435396A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-10-29 1977-04-30 1977-10-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-10-29 1981-04-30 1981-10-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-10-29 1985-04-30 1985-10-30 $7700.00 Window Closed / Lapsed

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