Patent US5669917A successfully refreshed from Google Patents.
US3747632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid conduits
Assignee: IPP Industrial Polymer Processing SA
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Filing: 1971-03-10
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Granted: 1973-07-24
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Expires: 1991-03-10
Abstract
Abstract The invention provides firstly a multi-tube conduit sheathed in synthetic resin foam, the surface of the foam providing the outer surface of the conduit; secondly a method of making the conduit involving the use of two coupling plates, with which the conduit ends are preferably provided, to define the ends of a forming head into which a molten mixture of synthetic resin and foaming agent is extruded to form the sheath, the tubes being secured at one end in holes formed in one plate and extending slidably through holes in the other plate; and thirdly a connecting device which includes one of the plates and further includes fittings which are partly inserted in the tube ends and pushed into enlarged cavities at the front or outside ends of the plate holes.
Inventors
- 👤 A Kok
- 👤 A Bronnimann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:48
CPC Classifications
F; F16; F16L; F16L39/00; B; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/18; F16L37/00; F16L37/08; F16L37/10; F16L37/113; F16L37/24; F16L37/244; F16L37/252; F16L37/56; F16L59/00; F16L59/04; F16L59/14; F16L59/153; F16L59/16; F16L59/18; F16L59/188; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7036
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
123 words
Apparatus for transport of fluids comprising, in combination: a plurality of substantially parallel fluid tubes of substantially uniform length; first and second end plate means positioned respectively at the opposite ends of said tubes, each plate means having an outer planar surface, each of said plate means also including a plurality of openings, each opening being for receipt of one of said tubes; and fittings for engaging said tubes in said plate means, said fittings projecting beyond the outer planar surface of said first plate means and said fittings extending to a position short of the outer planar surface of said second plate means so as to be recessed to thereby receive projecting fittings of plate means positioned adjacent said second plate means.
Claim 2
Dependent Claim
123 words
Apparatus for transport of fluids comprising, in combination: a plurality of substantially parallel fluid tubes of substantially uniform length; first and second end plate means positioned respectively at the opposite ends of said tubes, each plate means having an outer planar surface, each of said plate means also including a plurality of openings, each opening being for receipt of one of said tubes; and fittings for engaging said tubes in said plate means, said fittings projecting beyond the outer planar surface of said first plate means and said fittings extending to a position short of the outer planar surface of said second plate means so as to be recessed to thereby receive projecting fittings of plate means positioned adjacent said second plate means.
Claim 3
Dependent Claim
45 words
Apparatus according to claim 1, wherein said plate openings include enlarged diameter portions forming cavities which open in the front face of the plates, the tubes being secured in these cavities by said fittings at least partly inserted in the corresponding ends of the tubes.
Claim 4
Dependent Claim
84 words
Apparatus according to claim 2, wherein the cavities each include in the vicinity of the said front face a smooth cylindrical portion followed by a frusto-conical portion, and the fittings each include, firstly, a frusto-conical portion which is formed with retaining ridges and which is inserted into one of the said corresponding ends of the tubes and is driven together with this tube end into the said frusto-conical cavity portion and, secondly, a cylindrical portion occupying at least in part the cylindrical cavity portion.
Claim 5
Dependent Claim
17 words
A conduit according to claim 3, wherein the said frusto-conical cavity portion is also includes retaining ridges.
Claim 6
Dependent Claim
21 words
Apparatus according to claim 2, which further include sealing means which are inserted in the recessed portions of said second plate.
Claim 7
Dependent Claim
30 words
Apparatus according to claim 2 including teeth gripping means about the periphery of the plates for cooperation with locking ring means capable of securing a pair of adjacent plates together.
Claim 8
Dependent Claim
31 words
Apparatus according to claim 2 including a circular groove formed in the periphery of the plates for cooperation with locking ring means capable of securing a pair of adjacent plates together.
Claim 9
Dependent Claim
108 words
An end structure for at least one end of a conduit having a plurality of flexible tubes which comprises a plate formed with a plurality of holes through which the tubes can pass and a plurality of fittings for securing the tubes in the holes, the said holes including enlarged diameter portions forming cavities opening in the front face of the plate, said fittings being inserted at least partly, at the front side of the plate, into the corresponding ends of the tubes after the said tubes have been passed through the holes, the said fittings being accommodated in the said cavities to secure therein the said ends.
Claim 10
Dependent Claim
108 words
An end structure for at least one end of a conduit having a plurality of flexible tubes which comprises a plate formed with a plurality of holes through which the tubes can pass and a plurality of fittings for securing the tubes in the holes, the said holes including enlarged diameter portions forming cavities opening in the front face of the plate, said fittings being inserted at least partly, at the front side of the plate, into the corresponding ends of the tubes after the said tubes have been passed through the holes, the said fittings being accommodated in the said cavities to secure therein the said ends.
Claim 11
Dependent Claim
81 words
Apparatus according to claim 8, wherein the cavities each include in the vicinity of the said front face a smooth cylindrical portion adjacent a frusto-conical portion, and the fittings each include, firstly, a frusto-conical portion which is formed with retaining edges for insertion into one of the said corresponding ends of the tubes and to be driven together with this tube end into the said frusto-conical portion and, secondly, a cylindrical portion at least partly occupying the said cylindrical cavity portion.
Claim 12
Dependent Claim
14 words
Apparatus according to claim 9, wherein the said frusto-conical cavity portion includes retaining ridges.
Claim 13
Dependent Claim
34 words
Apparatus according to claim 9 wherein the said cylindrical fitting portion is longer than the said cylindrical cavity portion thereby to project from said plate anD impart to the said plate a male characteristic.
Claim 14
Dependent Claim
29 words
Apparatus according to claim 9 wherein the said cylindrical fitting portion is shorter than the said cylindrical cavity portion thereby to impart to the said plate a female characteristic.
Claim 15
Dependent Claim
18 words
Apparatus according to claim 12 including additional means for sealing inserted into the cylindrical portions of the cavities.
Claim 16
Dependent Claim
34 words
Apparatus according to claim 8 including teeth at the periphery of the plate for cooperation with a fixing ring capable of securing the said plate to an analogous plate comprising part of distinct apparatus.
Claim 17
Dependent Claim
35 words
Apparatus according to claim 8 including circular groove means in the periphery of the plate for cooperation with locking ring means for securing the plate to an analogous plate comprising part of a distinct apparatus.
Claim 18
Dependent Claim
80 words
Apparatus for the transport of fluids comprising, in combination: a plurality of substantially parallel flexible fluid tubes of substantially uniform length; end plate means engaged with at least one end of said tubes for separating said tubes from one another; and a synthetic resin, foam material surrounding each of said tubes, said tubes being embedded in said foam material, said combination forming a pliable conduit with the outer surface of the foam material forming the outer surface of said conduit.
Claim 19
Dependent Claim
80 words
Apparatus for the transport of fluids comprising, in combination: a plurality of substantially parallel flexible fluid tubes of substantially uniform length; end plate means engaged with at least one end of said tubes for separating said tubes from one another; and a synthetic resin, foam material surrounding each of said tubes, said tubes being embedded in said foam material, said combination forming a pliable conduit with the outer surface of the foam material forming the outer surface of said conduit.
Claim 20
Dependent Claim
24 words
The apparatus of claim 16 wherein said end plate means are cooperable with means for connecting said tubes individually to separate fluid transport means.
Claim 21
Dependent Claim
29 words
The apparatus of claim 16 wherein said end plate means includes means for engaging and connecting with end plate means of a connected apparatus for the transport of fluids.
Claim 22
Dependent Claim
16 words
The apparatus of claim 16 including end plate means at the opposite ends of said tubes.
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) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |