US3904469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a bonded helmet structure
Assignee: Sports Products Corp
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Filing: 1973-11-30
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Granted: 1975-09-09
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Expires: 1993-11-30
Abstract
Abstract A method of manufacture is disclosed for thermoplastic hollow bodies such as a coin bank, which comprises: molding a hollow shell portion with a thickened edge extending along a portion of the shell and outwardly offset from the shell with a recess adapted to receive a second molded portion in mating relationship; integrally molding a second flat portion having complementary shaped annular edges and an elongated extension such as a bill, wherein the elongated extension is attached at an inner edge thereof to the flat portion. The extension has a thickened edge extending around an outer edge of the extension and terminating at an inner edge of the extension at points adjacent to the flat portion. The flat portion has integrally molded therewith an arcuate projection corresponding to the shell edge shape and spaced inwardly on the flat portion from the inner edge of the elongated extension and adapted to mate with an inner surface of the shell. The relatively thin molded sections are then assembled and bonded to form a housing or container. The hollow portion may be in the shape of a helmet crown with a coin slot. The flat portion may be in the form of a flat base portion having an access port. The structure can be bonded by ultrasonic energy or solvent welding. The invention is especially useful for manufacturing two-color billed baseball helmet-type enclosures suitable for use as a coil bank, where two sections are molded from different colored thermoplastic synthetic resin and thereafter bonded.
Inventors
- 👤 George Dickstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:07
CPC Classifications
A; A45; A45C; A45C1/00; A45C1/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
185 words
A METHO OF MANUFACTURE FOR AN ENCLOSURE OF THERMOPLASTIC SYNTHETIC RESIN IN THE SHAPE OF A TWO-COLOR BILLED HELMENT STRUCTURE HAVING A MOLDED ELLIPOSIDAL HOLLOW CROWN PORTION, A FRONT BILL PORTION, AND A HORIZONTAL PLANTER BASE CLOSURE PORTION CORNPRISING INTERGRALLY MOLDING THE FRONT BILL PORTION AND PLANTER BASE CLOSURE PORTION CORRESPONDING IN SUBSTANTIALLY ELLIPTICAL SHAPE TO THE CROWN PORTION IN A UNIFORMLY COLORED ONEPIECE MOLDED BULL PART WHEREIN THE BILL PORTION IS ATTACHED AT A INNER EDGE THEREOF TO THE BASE CLOSURE POSITION, SAID BILL PORTION HAVING A FIRST THICKENED EDGE EXTENDING AROUND AN OUTER PERIPHERAL EDGE OF THE BILL PORTION AND TERMINING AT THE INNER EDGE OF THE BILL AT POINTS WHERE THE OUTER EDGE OF THE BILL PORTION IS ADJACENT TO THE BASE CLOSURE PORTION, SAID BASE CLOSURE HAVIN INTEGRALLY MOLDED THEREIN AN ARCUATE UPWARDLY EXTENDING PROJECTION CORRESPONDING TO THE CROWN SHAPE AND SPACED INWARDLY TO THE CLOSURE FROM THE INNER BILL EDGE AND ADAPTED TO MATE WITH AN INNER SURFACE OF THE CROWN PORTION, MOLDING THE HOLLOW CROWN PORTION IN A DIFFERENT UNIFORM COLOR WITH A LOWER SECOND THICKENED EDGE EXTENDING ALONG
Claim 2
Dependent Claim
185 words
A METHO OF MANUFACTURE FOR AN ENCLOSURE OF THERMOPLASTIC SYNTHETIC RESIN IN THE SHAPE OF A TWO-COLOR BILLED HELMENT STRUCTURE HAVING A MOLDED ELLIPOSIDAL HOLLOW CROWN PORTION, A FRONT BILL PORTION, AND A HORIZONTAL PLANTER BASE CLOSURE PORTION CORNPRISING INTERGRALLY MOLDING THE FRONT BILL PORTION AND PLANTER BASE CLOSURE PORTION CORRESPONDING IN SUBSTANTIALLY ELLIPTICAL SHAPE TO THE CROWN PORTION IN A UNIFORMLY COLORED ONEPIECE MOLDED BULL PART WHEREIN THE BILL PORTION IS ATTACHED AT A INNER EDGE THEREOF TO THE BASE CLOSURE POSITION, SAID BILL PORTION HAVING A FIRST THICKENED EDGE EXTENDING AROUND AN OUTER PERIPHERAL EDGE OF THE BILL PORTION AND TERMINING AT THE INNER EDGE OF THE BILL AT POINTS WHERE THE OUTER EDGE OF THE BILL PORTION IS ADJACENT TO THE BASE CLOSURE PORTION, SAID BASE CLOSURE HAVIN INTEGRALLY MOLDED THEREIN AN ARCUATE UPWARDLY EXTENDING PROJECTION CORRESPONDING TO THE CROWN SHAPE AND SPACED INWARDLY TO THE CLOSURE FROM THE INNER BILL EDGE AND ADAPTED TO MATE WITH AN INNER SURFACE OF THE CROWN PORTION, MOLDING THE HOLLOW CROWN PORTION IN A DIFFERENT UNIFORM COLOR WITH A LOWER SECOND THICKENED EDGE EXTENDING ALONG
Claim 3
Dependent Claim
28 words
The method of claim 1 wherein the assembled helmet structure is held in an inverted position during ultrasonic bonding by a C-support adapted to receive the helmet structure.
Claim 4
Dependent Claim
27 words
The method of claim 1 wherein the base closure is provided with an access port and wherein the crown portion is provided with a top coin slot.
Claim 5
Dependent Claim
31 words
The method of claim 1 wherein the thickened edges have a substantially uniform outer surface and are aligned to provide a generally continuous appearance around the bill and rear crown portions.
Claim 6
Independent Claim
243 words
A method of manufacture for an enclosure of thermoplastic synthetic resin in the shape of a two-color billed helmet structure having a molded ellipsoidal hollow crown portion, a front bill portion and a horizontal planar base closure portion comprising integrally molding the front bill portion and planar base closure portion corresponding in substantially elliptical shape to the crown portion in a uniformly colored one-piece molded bill part wherein the bill portion is attached at an inner edge thereof to the base closure portion; said bill portion having a first thickened edge extending around an outer peripheral edge of the bill portion and terminating at the inner edge of the bill at points where the outer edge of the bill portion is adjacent to the base closure portion; said base closure having integrally molded therewith an arcuate upwardly extending projection corresponding to the crown shape and spaced inwardly on the base closure from the inner bill edge and adapted to mate with an inner surface of the crown portion; molding the hollow crown portion in a different uniform color with a lower second thickened edge extending along a rear portion of the crown forward to a juncture with a corresponding first thickened edge on the bill portion, said second thickened edge outwardly offset from the crown and being recessed to register with the planar base closure portion; and bonding the molded crown portion to the integral bill and base closure portions by solvent welding.
Claim 7
Independent Claim
243 words
A method of manufacture for an enclosure of thermoplastic synthetic resin in the shape of a two-color billed helmet structure having a molded ellipsoidal hollow crown portion, a front bill portion and a horizontal planar base closure portion comprising integrally molding the front bill portion and planar base closure portion corresponding in substantially elliptical shape to the crown portion in a uniformly colored one-piece molded bill part wherein the bill portion is attached at an inner edge thereof to the base closure portion; said bill portion having a first thickened edge extending around an outer peripheral edge of the bill portion and terminating at the inner edge of the bill at points where the outer edge of the bill portion is adjacent to the base closure portion; said base closure having integrally molded therewith an arcuate upwardly extending projection corresponding to the crown shape and spaced inwardly on the base closure from the inner bill edge and adapted to mate with an inner surface of the crown portion; molding the hollow crown portion in a different uniform color with a lower second thickened edge extending along a rear portion of the crown forward to a juncture with a corresponding first thickened edge on the bill portion, said second thickened edge outwardly offset from the crown and being recessed to register with the planar base closure portion; and bonding the molded crown portion to the integral bill and base closure portions by solvent welding.
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) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |