US4258515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conduit trunking
Assignee: Individual
•
Filing: 1978-09-13
•
Granted: 1981-03-31
•
Expires: 1998-09-13
Abstract
Abstract Extruded plastic trunking to cover, conceal, and protect cables or conduits on the surfaces of building walls, comprising a base strip with a channel groove to accommodate the conduit or cable and an overlying resilient curved cover strip arranged to make a snap fit with the base, having sloping flanks which extend close to the wall. The cover strip may be transparent and provided with a lining strip of the same pattern and color as the wall surface.
Inventors
- 👤 William J. Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:56
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/04; H02G3/30; H02G3/34
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
95 words
Trunking to receive and conceal elongated members on an exposed surface, comprising an elongated base provided with means for attachment to said exposed surface, the base having means for retaining said members temporarily in position thereon, and a transparent cover provided with means for securing a strip of material within said cover to be visible externally, and means for securing said cover as a releasable snap fit to said base so as to form an enclosed elongated duct, the outer flank surfaces of said cover being inclined towards and substantially meeting said exposed mounting surface.
Claim 2
Dependent Claim
95 words
Trunking to receive and conceal elongated members on an exposed surface, comprising an elongated base provided with means for attachment to said exposed surface, the base having means for retaining said members temporarily in position thereon, and a transparent cover provided with means for securing a strip of material within said cover to be visible externally, and means for securing said cover as a releasable snap fit to said base so as to form an enclosed elongated duct, the outer flank surfaces of said cover being inclined towards and substantially meeting said exposed mounting surface.
Claim 3
Dependent Claim
31 words
Trunking according to claim 1, mounted on and attached to an exposed wall surface, in combination with electric cables mounted and concealed within said duct formed by said base and cover.
Claim 4
Dependent Claim
20 words
Trunking according to claim 1, in combination with a plurality of strips of material of different colours, patterns or textures.
Claim 5
Dependent Claim
30 words
Trunking according to claim 1 in which the width of the cover is equal to the developed arcuate length of the locating formation to receive a strip of the material.
Claim 6
Dependent Claim
20 words
Trunking according to claim 1, in which the cover and/or the base are formed of a resilient synthetic plastics material.
Claim 7
Dependent Claim
31 words
Trunking according to claim 1, in which the base has a prepared back surface provided with a layer of adhesive and is also preformed with apertures, as an alternative mounting means.
Claim 8
Dependent Claim
24 words
Trunking according to claim 1, in which the base is formed with apertures and markings to facilitate alignment with features on the mounting surface.
Claim 9
Dependent Claim
35 words
Trunking according to claim 1, in which the base is an extruded plastics part of channel cross-section formed with means to locate cables or conduits at least temporarily in position, until the cover is fitted.
References Cited (Backward Citations)
FR1317930A
Cited
US1714174A
Cited
GB323832A
Cited
US2297887A
Cited
US3173826A
Cited
US3321878A
Cited
US3903626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |