Patent US2135303A successfully refreshed from Google Patents.
US2736897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of covering rod-like material
Assignee: American Plastics Corp
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Filing: 1953-09-02
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Granted: 1956-02-28
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Expires: 1973-09-02
Abstract
No abstract record available.
Inventors
- 👤 John A Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:14
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/34; B29C48/03; B29C48/06; B29C48/09; B29C48/12; B29C48/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
THE METHOD OF APPLYING A SUBSTANTIALLY BLISTER-FREE, HOMOGENEOUS, SINGLE-LAYERED COATING POSSESSING FRICTIONAL GRIPPING QUALITIES TO ROD-SHAPED MATERIAL WHICH COMPRISES FEEDING THERMOPLASTIC MATERIAL IN A HEATED AND FLOWABLE CONDITION THROUGH A GROOVED EXTRUSION DIE ORIFICE TO FORM A CONTINUOUS EXTRUDED TUBE LARGER THAN SAID ROD-SHAPED MATERIAL AND HAVING AN EXTERIOR LONGITUDINALLY-RIDGED SURFACE, CONTINUOUSLY INTRODUCING SAID ROD-SHAPED MATERIAL TO BE COATED DIRECTLY INTO SAID EXTRUDED TUBE THUS PROVIDING AN INTERMEDIATE STRUCTURE, PASSING SAID INTERMEDIATE STRUCTURE THROUGH A CONSTRICTION CHAMBER POSSESSING EXPANSIBLE WALLS THEREBY APPLYING UNIFORM PRESSURE TO THE EXTERIOR CONTOURS OF SAID INTERMEDIATE STRUCTURE WITHOUT COMPLETELY FLATTENING THE EXTERIOR RIDGES OF THE TUBE OF THERMOPLASTIC MATERIAL TO SHAPE THE FORM OF SAID THERMOPLASTIC MATERIAL TO THE CONTOUR OF SAID ROD-SHAPED MATERIAL WHILE SIMULTANEOUSLY EJECTING THE VAPORS PRESENT WITHIN SAID INTERMEDIATE STRUCTURE, FOLLOWED BY COOLING THEREOF, WHEREBY THE ROD-SHAPED MATERIAL IS COVERED WITH AN EXTRUDED TUBE OF THERMOPLASTIC MATERIAL PRESENTING A LONGITUDINALLY-RIDGED EXTERIOR SURFACE.
Claim 2
Independent Claim
151 words
THE METHOD OF APPLYING A SUBSTANTIALLY BLISTER-FREE, HOMOGENEOUS, SINGLE-LAYERED COATING POSSESSING FRICTIONAL GRIPPING QUALITIES TO ROD-SHAPED MATERIAL WHICH COMPRISES FEEDING THERMOPLASTIC MATERIAL IN A HEATED AND FLOWABLE CONDITION THROUGH A GROOVED EXTRUSION DIE ORIFICE TO FORM A CONTINUOUS EXTRUDED TUBE LARGER THAN SAID ROD-SHAPED MATERIAL AND HAVING AN EXTERIOR LONGITUDINALLY-RIDGED SURFACE, CONTINUOUSLY INTRODUCING SAID ROD-SHAPED MATERIAL TO BE COATED DIRECTLY INTO SAID EXTRUDED TUBE THUS PROVIDING AN INTERMEDIATE STRUCTURE, PASSING SAID INTERMEDIATE STRUCTURE THROUGH A CONSTRICTION CHAMBER POSSESSING EXPANSIBLE WALLS THEREBY APPLYING UNIFORM PRESSURE TO THE EXTERIOR CONTOURS OF SAID INTERMEDIATE STRUCTURE WITHOUT COMPLETELY FLATTENING THE EXTERIOR RIDGES OF THE TUBE OF THERMOPLASTIC MATERIAL TO SHAPE THE FORM OF SAID THERMOPLASTIC MATERIAL TO THE CONTOUR OF SAID ROD-SHAPED MATERIAL WHILE SIMULTANEOUSLY EJECTING THE VAPORS PRESENT WITHIN SAID INTERMEDIATE STRUCTURE, FOLLOWED BY COOLING THEREOF, WHEREBY THE ROD-SHAPED MATERIAL IS COVERED WITH AN EXTRUDED TUBE OF THERMOPLASTIC MATERIAL PRESENTING A LONGITUDINALLY-RIDGED EXTERIOR SURFACE.
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) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |