US3727644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lay-in cable ducting assemblies
Assignee: Individual
•
Filing: 1971-12-20
•
Granted: 1973-04-17
•
Expires: 1991-12-20
Abstract
Abstract A lay-in cable channel section has a gate as one of its lateral walls which is hinged along the bottom edge, the novel hinge providing the gate with enough strength to act as a supporting platform for materials alongside the cableway. The hinge is also designed so as to permit the gate to stay vertically closed when raised. The cable channel sections are united by coupling sections of similar cross-section but these have suspended gates so seal off any static gap. Above the interior cableway is an open cableway. Novel hangers permit the channel sections to be suspended in side-by-side pairs. A section can be simply lifted out of the hanger and by a reverse movement returned to be positively held by way of upper and lower flanges.
Inventors
- 👤 D Kagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:10
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/04; H02G3/0406; H02G3/0418
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
130 words
In combination, a lay-in cable channel section of generally rectangular transverse cross-section and a coupling channel of substantially complementary transverse cross-section for uniting two such channel sections, said channel section having an elongated gate means for closing one lateral side of said channel section, hinge means connected to said channel section along its lower edge and means for restricting the opening of the panel of said gate means to an arc of between not substantially less than 45* and not substantially more than 90* from the approximate vertical for the purpose of supporting materials upon said gate panel during the laying-in of cable, an open-topped cableway overlying said cable section, said cable section and cable-way being integral, said gate means being removable from said channel section by endwise sliding movement.
Claim 2
Dependent Claim
130 words
In combination, a lay-in cable channel section of generally rectangular transverse cross-section and a coupling channel of substantially complementary transverse cross-section for uniting two such channel sections, said channel section having an elongated gate means for closing one lateral side of said channel section, hinge means connected to said channel section along its lower edge and means for restricting the opening of the panel of said gate means to an arc of between not substantially less than 45* and not substantially more than 90* from the approximate vertical for the purpose of supporting materials upon said gate panel during the laying-in of cable, an open-topped cableway overlying said cable section, said cable section and cable-way being integral, said gate means being removable from said channel section by endwise sliding movement.
Claim 3
Dependent Claim
106 words
The invention according to claim 1 in which said gate means at least include an elongated cylindrical hinge-pin integral with said gate panel, said means for restricting the opening of said gate panel at least including an elongated hinge roll of semi-cylindrical transverse cross-sectional configuration for said hinge-pin, said pin residing in said roll, said roll having an opening parallel with said roll extending for the length of said roll through which said gate panel extends, the width of said opening being contained in an arc of not substantially less than 45* or substantially more than 90* next below the horizontal axial plane of said roll.
Claim 4
Dependent Claim
43 words
The invention according to claim 1 in which said hinge means are so related to said gate means as to cause said gate panel to remain in substantially vertical closed position against said channel section upon being raised into such substantially vertical position.
Claim 5
Dependent Claim
57 words
The invention according to claim 2 in which said pin is secured integrally to the lower edge of said gate panel offset from the axial planes of said pin so as to import a tendency to said gate panel of remaining in closed position when raised into the substantially vertical with said panel contacting said channel section.
Claim 6
Dependent Claim
22 words
The invention according to claim 2 which includes an open-topped cable-way overlying said cable section, said cable section and cable-way being integral.
Claim 7
Dependent Claim
116 words
The invention according to claim 1 in which said channel section includes upwardly and downwardly projecting flanges on the upper and lower portions respectively Of the lateral wall thereof opposite said gate panel, and hanger means, said hanger means at least including a suspension bar and downwardly and upwardly opening hook means fixed on said bar engageable with said upper and lower flanges respectively, the distance between the entrances to said hooks being slightly less than the distance between the distal edges of said flanges whereby said channel section can be lifted out of said hook means for disengagement therewith and yet be held between both said upwardly and downwardly opening hook means while in situ.
Claim 8
Dependent Claim
78 words
The invention according to claim 1 in which said coupling channel includes gate means including a gate panel in underlapping relationship with said channel section gate means, hinge means for said coupling channel gate means at the upper horizontal edge of said coupling channel gate panel, said hinge means at least including a continuous semi-cylindrical roll integral with the roof of said coupling channel and hinge pin means integral with said gate panel receivable into said hinge roll.
Claim 9
Dependent Claim
107 words
The invention according to claim 2 in which said coupling channel includes gate means including a gate panel in underlapping relationship with said channel section gate means, hinge means for said coupling channel gate means at the upper horizontal edge of said coupling channel gate panel, said hinge means at least including a continuous semi-cylindrical roll integral with the roof of said coupling channel and hinge pin means integral with said gate panel receivable into said hinge roll, an open-topped cable-way overlying said cable section, said cable section and cable-way being integral, said channel section gate means being removable from said channel section by endwise sliding movement.
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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) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |