US3194705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making reinforced corrugated hose
Assignee: HK Porter Co Inc
•
Filing: 1957-03-08
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Granted: 1965-07-13
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Expires: 1977-03-08
Abstract
No abstract record available.
Inventors
- 👤 David M Caplan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:48
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/18; B31; B31F; B31F1/00; B31F1/20; B31F1/205; F; F16; F16L; F16L11/00; F16L11/04; F16L11/11; F16L11/112; B29K; B29K2021/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
A METHOD OF FABRICATING A HOSE OF THERMOSETTING PLASTIC MATERIAL WITH CIRCUMFERENTIAL TURNS OF WIRE REINFORCEMENT MEANS EMBEDDED THEREIN, CHARACTERIZED BY THE USE OF A HOLLOW MOLD WITH A HELICALLY CORRUGATED INTERIOR CIRCUMFERENTIAL WALL AND INCLUDING THE STEPS OF: PLACING A TUBE OF THERMOSETTING PLASTIC MATERIAL IN SAID MOLD WITH SAID WIRE REINFORCEMENT MEANS SURROUNDING THE TUBE IN THE MOLD AND FREE OF ENGAGEMENT WITH SAID TUBE AT PORTIONS CORRESPONDING TO THE HELICALLY CORRUGATED INTERIOR WALL OF SAID MOLD; SEALING OFF THE INTERIOR OF THE TUBE FROM THE INTERIOR OF THE MOLD; INTRODUCING FLUID UNDER PRESSURE INTO SAID TUBE FOR THE PURPOSES OF PROVIDING PRESSURE TO EXPAND THE TUBE RADIALLY; SUPPLYING HEAT TO SAID TUBE TO CAUSE MATERIAL OF THE EXPANDED TUBE TO FLOW AROUND THE TURNS OF SAID REINFORCEMENT MEANS INTO CONTACT WITH THE SURROUNDING MOLD WALLS TO ASSUME THE CONFIGURATION OF THE MOLD; AND SUPPLYING HEAT TO CURE THE PLASTIC MATERIAL OF THE EXPANDED TUBE.
Claim 2
Independent Claim
157 words
A METHOD OF FABRICATING A HOSE OF THERMOSETTING PLASTIC MATERIAL WITH CIRCUMFERENTIAL TURNS OF WIRE REINFORCEMENT MEANS EMBEDDED THEREIN, CHARACTERIZED BY THE USE OF A HOLLOW MOLD WITH A HELICALLY CORRUGATED INTERIOR CIRCUMFERENTIAL WALL AND INCLUDING THE STEPS OF: PLACING A TUBE OF THERMOSETTING PLASTIC MATERIAL IN SAID MOLD WITH SAID WIRE REINFORCEMENT MEANS SURROUNDING THE TUBE IN THE MOLD AND FREE OF ENGAGEMENT WITH SAID TUBE AT PORTIONS CORRESPONDING TO THE HELICALLY CORRUGATED INTERIOR WALL OF SAID MOLD; SEALING OFF THE INTERIOR OF THE TUBE FROM THE INTERIOR OF THE MOLD; INTRODUCING FLUID UNDER PRESSURE INTO SAID TUBE FOR THE PURPOSES OF PROVIDING PRESSURE TO EXPAND THE TUBE RADIALLY; SUPPLYING HEAT TO SAID TUBE TO CAUSE MATERIAL OF THE EXPANDED TUBE TO FLOW AROUND THE TURNS OF SAID REINFORCEMENT MEANS INTO CONTACT WITH THE SURROUNDING MOLD WALLS TO ASSUME THE CONFIGURATION OF THE MOLD; AND SUPPLYING HEAT TO CURE THE PLASTIC MATERIAL OF THE EXPANDED TUBE.
Claim 3
Dependent Claim
224 words
IN APPARATUS OF THE CHARACTER DESCRIBED FOR PROCESSING A TUBE OF UNCURED THERMOSETTING PLASTIC MATERIAL TO FORM A TUBULAR BODY, THE COMBINATION OF: A LONGITUDINALLY SPLIT MOLD WITH AN INTERIOR CIRCUMFERENTIAL WALL OF THE SHAPE OF THE FINISHED TUBULAR BODY; AND A MANDREL TO EXTEND THROUGH THE TUBE AND INTIALLY SUPPORT THE TUBE IN THE MOLD, SAID MANDREL HAVING A CENTRAL PORTION OF A FIRST DIAMETER AND HAVING ENDS OF A SECOND DIAMETER LARGER THAN SAID FIRST DIAMETER BUT LESS THAN THE DIAMETER OF THE COOPERATING PORTIONS OF THE MOLD, AT LEAST ONE OF SAID ENDS BEING SEPARABLE FROM THE CENTRAL PORTION TO PERMIT INSERTION OF SAID MANDREL INTO SAID TUBE, SAID MANDREL HAVING AN OPENING EXTENDING EXTERIORLY OF SAID MOLD FOR THE ADMISSION OF FLUID UNDER PRESSURE INTO THE INTERIOR OF SAID TUBE TO EXPAND THE TUBE RADIALLY TO THE CONFIGURATION OF THE MOLD, THE ENDS OF SAID MANDREL BEING DIMENSIONED TO COOPERATE WITH THE MOLD TO CLAMP THE ENDS OF THE TUBE IN A FLUID-TIGHT MANNER TO SEAL OFF THE INTERIOR OF THE TUBE FROM THE INTERIOR OF THE MOLD AROUND THE TUBE, SAID MANDREL HAVING A SECOND OPENING SPACED FROM SAID FIRST MENTIONED OPENING AND EXTENDING EXTERIORLY OF SAID MOLD FOR THE DISCHARGE OF FLUID FROM THE INTERIOR OF THE TUBE THEREBY TO CAUSE CIRCULATION OF THE FLUID THROUGH THE TUBE.
Claim 4
Dependent Claim
224 words
IN APPARATUS OF THE CHARACTER DESCRIBED FOR PROCESSING A TUBE OF UNCURED THERMOSETTING PLASTIC MATERIAL TO FORM A TUBULAR BODY, THE COMBINATION OF: A LONGITUDINALLY SPLIT MOLD WITH AN INTERIOR CIRCUMFERENTIAL WALL OF THE SHAPE OF THE FINISHED TUBULAR BODY; AND A MANDREL TO EXTEND THROUGH THE TUBE AND INTIALLY SUPPORT THE TUBE IN THE MOLD, SAID MANDREL HAVING A CENTRAL PORTION OF A FIRST DIAMETER AND HAVING ENDS OF A SECOND DIAMETER LARGER THAN SAID FIRST DIAMETER BUT LESS THAN THE DIAMETER OF THE COOPERATING PORTIONS OF THE MOLD, AT LEAST ONE OF SAID ENDS BEING SEPARABLE FROM THE CENTRAL PORTION TO PERMIT INSERTION OF SAID MANDREL INTO SAID TUBE, SAID MANDREL HAVING AN OPENING EXTENDING EXTERIORLY OF SAID MOLD FOR THE ADMISSION OF FLUID UNDER PRESSURE INTO THE INTERIOR OF SAID TUBE TO EXPAND THE TUBE RADIALLY TO THE CONFIGURATION OF THE MOLD, THE ENDS OF SAID MANDREL BEING DIMENSIONED TO COOPERATE WITH THE MOLD TO CLAMP THE ENDS OF THE TUBE IN A FLUID-TIGHT MANNER TO SEAL OFF THE INTERIOR OF THE TUBE FROM THE INTERIOR OF THE MOLD AROUND THE TUBE, SAID MANDREL HAVING A SECOND OPENING SPACED FROM SAID FIRST MENTIONED OPENING AND EXTENDING EXTERIORLY OF SAID MOLD FOR THE DISCHARGE OF FLUID FROM THE INTERIOR OF THE TUBE THEREBY TO CAUSE CIRCULATION OF THE FLUID THROUGH THE TUBE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |