US3782420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable installation conduit with l and t joints
Assignee: Tehalit Kunststoffwerk GmbH
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Filing: 1972-04-14
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Granted: 1974-01-01
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Expires: 1992-04-14
Abstract
Abstract Cable conduit installation equipped with L-and T-connecting members which are provided with releasable means for sliding on and interengagement with the installation conduit and/or means for sliding on and underlapping or overlapping with the conduit covering.
Inventors
- 👤 R Sternjakob
- 👤 P Kolb
- 👤 G Pollak
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; H02G3/06; H02G3/0608
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
142 words
Cable conduit installation comprising a cable conduit presenting upper and lower walls, at least one said wall having a latch engagement configuration, a connecting member intermediate said upper and lower walls, said connecting member being a cover plate closing the open space between said upper and lower walls and having portions extending over said upper and lower walls, at least one said portion having a latch member slidable into engagement with said latch engagement configuration, said upper and lower walls presenting grooves defining said latch engagement configuration, a side wall of an L-connecting member that serves as a connecting member for an outer corner is provided with a slot prolonging one inner edge of said side wall and forms a wall portion that is separated from the remaining wall portion and is provided with a bulge adapted to engage one said groove.
Claim 2
Dependent Claim
142 words
Cable conduit installation comprising a cable conduit presenting upper and lower walls, at least one said wall having a latch engagement configuration, a connecting member intermediate said upper and lower walls, said connecting member being a cover plate closing the open space between said upper and lower walls and having portions extending over said upper and lower walls, at least one said portion having a latch member slidable into engagement with said latch engagement configuration, said upper and lower walls presenting grooves defining said latch engagement configuration, a side wall of an L-connecting member that serves as a connecting member for an outer corner is provided with a slot prolonging one inner edge of said side wall and forms a wall portion that is separated from the remaining wall portion and is provided with a bulge adapted to engage one said groove.
Claim 3
Dependent Claim
34 words
Cable conduit installation in accordance with claim 1, where one wall of the connecting member is provided with a plurality of break-out locations defined by grooves extending at right angles relative to one another.
Claim 4
Dependent Claim
39 words
Cable conduit installation in accordance with claim 2, where said connecting member has side walls that completely cover the side walls of the cable conduit walls up to the ends thereof at the back wall of said cable conduits.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |