US4392344A — Chain-link cable carrier

Claim 1

Independent Claim 291 words

A chain-link type of cable carrier suitable for holding electrical cables, wires, hoses or the like, comprising: a plurality of links pivotally connected to each other end-to-end in a series chain; each of said links being of integral tubular plastic construction, having a substantially rectangular cross-section at least adjacent its opposite ends to form a box having open ends, and comprising pivot means adjacent each of said opposite ends thereof for providing pivotal connection of each link to immediately adjacent links in said chain; one end of each of said links being narrower than its other wider end and the top and bottom of each link having recesses therein adjacent said other end for receiving between its side walls said narrower end of the adjacent link; said pivot means of each said link being positioned adjacent but inboard of said opposite end thereof, the pivot axes of said pivot means extending at right angles to said side walls so that when said each link is pivoted about one of its pivot axes in one sense with respect to the immediately adjacent link into which it extends, its pivoting is limited by abutment of the top of said narrower end of each said link against the recessed top of the adjacent link, with the top surfaces of said each link and said adjacent link aligned with each other; said pivot means comprising stop means for limiting pivoting of said each link with respect to said immediately adjacent link in the opposite sense at a predetermined angular position to define the minumum permitted radius of curvature of said carrier along its longitudinal axis; and said links when pivoted toward said predetermined angular position producing an opening between the top surfaces of adjacent links.

Claim 2

Dependent Claim 291 words

A chain-link type of cable carrier suitable for holding electrical cables, wires, hoses or the like, comprising: a plurality of links pivotally connected to each other end-to-end in a series chain; each of said links being of integral tubular plastic construction, having a substantially rectangular cross-section at least adjacent its opposite ends to form a box having open ends, and comprising pivot means adjacent each of said opposite ends thereof for providing pivotal connection of each link to immediately adjacent links in said chain; one end of each of said links being narrower than its other wider end and the top and bottom of each link having recesses therein adjacent said other end for receiving between its side walls said narrower end of the adjacent link; said pivot means of each said link being positioned adjacent but inboard of said opposite end thereof, the pivot axes of said pivot means extending at right angles to said side walls so that when said each link is pivoted about one of its pivot axes in one sense with respect to the immediately adjacent link into which it extends, its pivoting is limited by abutment of the top of said narrower end of each said link against the recessed top of the adjacent link, with the top surfaces of said each link and said adjacent link aligned with each other; said pivot means comprising stop means for limiting pivoting of said each link with respect to said immediately adjacent link in the opposite sense at a predetermined angular position to define the minumum permitted radius of curvature of said carrier along its longitudinal axis; and said links when pivoted toward said predetermined angular position producing an opening between the top surfaces of adjacent links.

Claim 3

Dependent Claim 53 words

The cable carrier of claim 1, comprising a plurality of closure sheets extending between said links near the tops thereof for closing said openings between links, said links comprising slot means each having an open side at each end of each link for receiving and slideably sheathing opposite ends of said closure sheets.

Claim 4

Dependent Claim 61 words

The cable carrier of claim 1, wherein: each said pivot means comprising two part-circular bosses extending outwardly from the sides of said each link adjacent said narrower end thereof, and aligned with each other, and two parti-circular openings through opposite sidewalls of said each link adjacent said wider end thereof for pivotally receiving the parti-circular bosses of the next adjacent link.

Claim 5

Dependent Claim 52 words

The cable carrier of claim 1, wherein: each of said part-circular openings is slightly more than semi-circular at its lower end and extends divergingly to the top of said sidewalls of said each link, whereby the corresponding bosses of the next adjacent link can be snapped into and out of said openings.

Claim 6

Dependent Claim 160 words

A chain-link type of cable carrier suitable for holding electrical cables, wires, hoses or the like, comprising a plurality of hollow links pivotally connected to each other in a series chain; each link of said chain being in the form of an open-ended box having a pair of pockets each adjacent one end of said link near its top, each of said pockets having an open end facing toward the adjacent end of its associated link and having a closed bottom opposite from said open end; and joint closure means extending between the adjacent ends of adjacent links in said chain, with its opposite ends extending into the adjacent confronting pockets of said adjacent links, whereby upon pivoting of one of said links with respect to an adjacent link about an axis such as to separate the bottom of said adjacent links from each other, said joint closure means covers the spacing between the tops of said adjacent pvioted links.

Claim 7

Dependent Claim 160 words

A chain-link type of cable carrier suitable for holding electrical cables, wires, hoses or the like, comprising a plurality of hollow links pivotally connected to each other in a series chain; each link of said chain being in the form of an open-ended box having a pair of pockets each adjacent one end of said link near its top, each of said pockets having an open end facing toward the adjacent end of its associated link and having a closed bottom opposite from said open end; and joint closure means extending between the adjacent ends of adjacent links in said chain, with its opposite ends extending into the adjacent confronting pockets of said adjacent links, whereby upon pivoting of one of said links with respect to an adjacent link about an axis such as to separate the bottom of said adjacent links from each other, said joint closure means covers the spacing between the tops of said adjacent pvioted links.

Claim 8

Dependent Claim 25 words

The carrier of claim 5, wherein said joint closure means is a thin sheet of flexible material loosely captured in adjacent pockets of adjacent links.

Claim 9

Dependent Claim 13 words

The carrier of claim 6, wherein said sheet is of tempered stainless steel.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1986-07-11	1987-01-10	1987-07-12	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1990-07-11	1991-01-10	1991-07-12	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1994-07-11	1995-01-10	1995-07-12	$7700.00	Window Closed / Lapsed

Chain-link cable carrier

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