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US3697667A Expired / Lapsed US ⏱️ 0.0 years remaining

Installation channel

Assignee: Tehalit Kunststoffwerk GmbH
•
Filing: 1971-06-29
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Granted: 1972-10-10
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Expires: 1991-06-29
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Abstract

Abstract Installation channel to be mounted on building walls which is of rectangular cross-section and has an open side opposite the mounting wall which can be closed by a cover, where spacing bars are provided for subdividing the channel into a plurality of electrically separated chambers. Means defining grooves are opposite the open side of the channel on the mounting wall for supporting the spacing bars, the side walls of the channel as well as the separating bars have free edges with elongated slots for cooperation clamps to be mounted therein. Clamps having ends to be introduced in the slots at the free edges of the channel side walls are provided with an angularly offset portion of rectangular cross-section and an angularly offset area portion of arrow-shaped cross-section on one side with an undercut, which portions are separated from one another by a longitudinal slot, the portion of rectangular cross-section has an inner edge which registers with the undercut portion of the area that is of arrowshaped cross-section on one side, and the portion of rectangular cross-section is of a width corresponding to the width of the slots in the free edges of the side walls of the channel and projects beyond the portion of arrow-shaped cross-section on one side by an amount corresponding to the depth of the undercut.

Inventors

  • 👤 Gottfried Pollak
  • 👤 Peter Kolb

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 03:23
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/04; H02G3/0431

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 252 words
Installation channel for mounting on building walls for supporting electric cables or the like said channel being of rectangular cross-section and having a mounting wall, side walls including means for receiving a cover, an open side opposite said mounting wall adapted to be closed by said cover, separating bars for subdividing said channel into a plurality of electrically separated chambers, means defining grooves opposite said open side of said channel on said mounting wall for supporting said spacing bars, said channel side walls as well as said separating bars having free edges provided with elongated slots for cooperation with clamps to be mounted therein, clamps having ends to be introduced in said slots at the free edges of said channel side walls provided with an angularly offset portion of rectangular cross-section and an angularly offset area portion of arrow-shaped cross-section on one side with an undercut, said portions being separated from one another by a longitudinal slot therebetween, where the portion of rectangular cross-section has an inner edge which registers with the undercut portion of the area that is of arrow-shaped cross-section on one side, and where Said portion of rectangular cross-section is of a width corresponding to the width of the slots in the free edges of the side walls of the channel and projects beyond the portion of arrow-shaped cross-section on one side by an amount corresponding to the depth of its undercut, said clamps further including means received within said slots in the free edges of said separating bars.
Claim 2
Dependent Claim 252 words
Installation channel for mounting on building walls for supporting electric cables or the like said channel being of rectangular cross-section and having a mounting wall, side walls including means for receiving a cover, an open side opposite said mounting wall adapted to be closed by said cover, separating bars for subdividing said channel into a plurality of electrically separated chambers, means defining grooves opposite said open side of said channel on said mounting wall for supporting said spacing bars, said channel side walls as well as said separating bars having free edges provided with elongated slots for cooperation with clamps to be mounted therein, clamps having ends to be introduced in said slots at the free edges of said channel side walls provided with an angularly offset portion of rectangular cross-section and an angularly offset area portion of arrow-shaped cross-section on one side with an undercut, said portions being separated from one another by a longitudinal slot therebetween, where the portion of rectangular cross-section has an inner edge which registers with the undercut portion of the area that is of arrow-shaped cross-section on one side, and where Said portion of rectangular cross-section is of a width corresponding to the width of the slots in the free edges of the side walls of the channel and projects beyond the portion of arrow-shaped cross-section on one side by an amount corresponding to the depth of its undercut, said clamps further including means received within said slots in the free edges of said separating bars.
Claim 3
Dependent Claim 71 words
Installation channel in accordance with claim 1, where said slots in the free edges of said separating bars comprise a narrow portion and a wider portion and said means on said clamps present inwardly projecting ribs having arrow-shaped cross-section at the level of the slots in the separating bars cooperating with said slots, and a groove separating said ribs into portions of arrow-shaped cross-section of mirror image likeness on one side.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-10-10 1976-04-10 1976-10-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-10-10 1980-04-10 1980-10-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-10-10 1984-04-10 1984-10-10 $7700.00 Window Closed / Lapsed

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