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US3894901A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of making hoses and profiled belts in a continuous process

Assignee: BRECO KUNSTSTOFF
•
Filing: 1973-04-09
•
Granted: 1975-07-15
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Expires: 1993-04-09
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Abstract

Abstract Method of and device for making hoses in a continuous process by means of a hollow mold, especially for producing reinforced endless profiled belts of extrudable material with a layer containing reinforcing pull-resistant wires extending in the circumferential direction of the hose being made, according to which a longitudinal support for the reinforcing wire is passed through the hollow mold and while the support is passing through the mold extrudable material is continuously injected into the mold. At the same time the reinforcing wire is wound upon the support in the circumferential direction thereof and the reinforcing wire is embedded in the injected extrudable material. After solidification of the extrudable material and after the hose has left the mold, the support is removed from the hose.

Inventors

  • 👤 Rudolf Breher

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 22:29
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/15; B29C48/151; B29C48/152; B29C48/153; B29C48/03; B29C48/09

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 196 words
A METHOD OF MAKING HOSES IN A CONTINUOUS PROCESS BY MEANS OF A HOLLOW MOLD, ESPECIALLY FOR PRODUCING REINFORCED ENDLESS PROFILED BELTS OF EXTRUDABLE MATERIAL WITH A LAYER CONTAINING REINFORCING PULL-RESISTANT WIRE MEANS XTENDING IN THE CIRCUMFERENTIAL DIRECTION OF THE HOSE BEING MADE, WHICH INCLUDES THE STEPS OF: PASSING THROUGH SAID HOLLOW MOLD AND IN A CONTINUOUS MANNER A LONGITUDINAL SUPPORT FOR REINFORCING WIRE MEANS, WHILE SAID SUPPORT IS PASSING THROUGH SAID MOLD CONTINUOUSLY INJECTING EXTRUDABLE MATERIAL INTO AN ANNULAR SPACE BETWEEN SAID HOLLOW MOLD AND A STATIONARY MOLD CORE WITHIN SAID HOLLOW MOLD AND WINDING REINFORCING WIRE MEANS UPON SAID SUPPORT IN CIRCUMFERENTIAL DIRECTION THEREOF AND EMBEDDING SAID REINFORCING WIRE MEANS IN THE INJECTED EXTRUDABLE MATERIAL, FOLLOWING THE SOLIDIFICATION OF SAID EXTRUDABLE MATERIAL AND AFTER THE HOSE THUS FORMED HAS LEFT SAID MOLD REMOVING SAID SUPPORT FROM SAID HOSE, EMPLOYING AS SUPPORT A PLURALITY OF LONGITUDINALLY EXTENDING WIRES AND ARRANGING THE SAME ON AND DISTRIBUTING THEM AROUND THE STATIONARY MOLD CORE IN SUBSTANTIALLY PARALLEL ARRANGEMENT TO THE AXIS OF SAID CORE, AND PULLING SAID LONGITUDINALY EXTENDING WIRES WITH SAID WIRE MEANS THEREON THROUGH BETWEEN SAID MOLD CORE AND THE MOLD PORTION SURROUNDING SAID WIRE MEANS.
Claim 2
Independent Claim 196 words
A METHOD OF MAKING HOSES IN A CONTINUOUS PROCESS BY MEANS OF A HOLLOW MOLD, ESPECIALLY FOR PRODUCING REINFORCED ENDLESS PROFILED BELTS OF EXTRUDABLE MATERIAL WITH A LAYER CONTAINING REINFORCING PULL-RESISTANT WIRE MEANS XTENDING IN THE CIRCUMFERENTIAL DIRECTION OF THE HOSE BEING MADE, WHICH INCLUDES THE STEPS OF: PASSING THROUGH SAID HOLLOW MOLD AND IN A CONTINUOUS MANNER A LONGITUDINAL SUPPORT FOR REINFORCING WIRE MEANS, WHILE SAID SUPPORT IS PASSING THROUGH SAID MOLD CONTINUOUSLY INJECTING EXTRUDABLE MATERIAL INTO AN ANNULAR SPACE BETWEEN SAID HOLLOW MOLD AND A STATIONARY MOLD CORE WITHIN SAID HOLLOW MOLD AND WINDING REINFORCING WIRE MEANS UPON SAID SUPPORT IN CIRCUMFERENTIAL DIRECTION THEREOF AND EMBEDDING SAID REINFORCING WIRE MEANS IN THE INJECTED EXTRUDABLE MATERIAL, FOLLOWING THE SOLIDIFICATION OF SAID EXTRUDABLE MATERIAL AND AFTER THE HOSE THUS FORMED HAS LEFT SAID MOLD REMOVING SAID SUPPORT FROM SAID HOSE, EMPLOYING AS SUPPORT A PLURALITY OF LONGITUDINALLY EXTENDING WIRES AND ARRANGING THE SAME ON AND DISTRIBUTING THEM AROUND THE STATIONARY MOLD CORE IN SUBSTANTIALLY PARALLEL ARRANGEMENT TO THE AXIS OF SAID CORE, AND PULLING SAID LONGITUDINALY EXTENDING WIRES WITH SAID WIRE MEANS THEREON THROUGH BETWEEN SAID MOLD CORE AND THE MOLD PORTION SURROUNDING SAID WIRE MEANS.
Claim 3
Dependent Claim 43 words
A method according to claim 1, which includes the step of employing as support for the reinforcing wire means a movable rod-shaped mold core and pulling the same with the wire means thereon through the mold in axial direction of said mold core.
Claim 4
Independent Claim 216 words
A method of making hoses in a continuous process by means of a hollow mold, especially for producing reinforced endless profiled belts of extrudable material with a layer containing reinforcing pull-resistant wire means extending in the circumferential direction of the hose being made, which includes the steps of: passing through said hollow mold and in a continuous manner a longitudinal support for reinforcing wire means, employing as said support a movable rod with longitudinally extending supporting ribs around the outer surface of said rod and introducing said ribbed rod in a sealing manner into said hollow mold, and while said rod is passing through said hollow mold continuously injecting extrudable material into the annular space between said hollow mold and said rod, said annular space being closed at that end where the rod is introduced into the hollow mold, and also while said rod is passing through said hollow mold introducing reinforcing wire means into said annular space and winding said wire means upon said supporting ribs of said rod and embedding said wire means in the injected extrudable material, and following the solidification of said extrudable material and after said rod together with the solidified material and with the embedded wire means has left said hollow mold removing said rod from the hose thus formed.
Claim 5
Independent Claim 216 words
A method of making hoses in a continuous process by means of a hollow mold, especially for producing reinforced endless profiled belts of extrudable material with a layer containing reinforcing pull-resistant wire means extending in the circumferential direction of the hose being made, which includes the steps of: passing through said hollow mold and in a continuous manner a longitudinal support for reinforcing wire means, employing as said support a movable rod with longitudinally extending supporting ribs around the outer surface of said rod and introducing said ribbed rod in a sealing manner into said hollow mold, and while said rod is passing through said hollow mold continuously injecting extrudable material into the annular space between said hollow mold and said rod, said annular space being closed at that end where the rod is introduced into the hollow mold, and also while said rod is passing through said hollow mold introducing reinforcing wire means into said annular space and winding said wire means upon said supporting ribs of said rod and embedding said wire means in the injected extrudable material, and following the solidification of said extrudable material and after said rod together with the solidified material and with the embedded wire means has left said hollow mold removing said rod from the hose thus formed.

References Cited (Backward Citations)

US2730761A Cited
US2995176A Cited
US3138511A Cited
US3287194A Cited
US3274316A Cited
US3776794A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-07-14 1979-01-13 1979-07-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-07-14 1983-01-13 1983-07-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-07-14 1987-01-13 1987-07-15 $7700.00 Window Closed / Lapsed

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