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US RE33,175 EGranted
Method for making decorative emblems
AssigneeThe D. L. Auld Company
InventorRobert E. Waugh
Life of this patent
Estimating the term…
Abstract
A method of casting decorative emblems from a polyurethane-type compound. A series of decorvative discs are held flat and horizontal while the polyurethane composition is cast thereon to form a meniscus. The polyurethane composition comprises a polyether polyol component and a diisocyanate component. The cast polyurethane, when cured, gives a lens effect to the decorative discs.
Claims14
A method of forming a plurality of foil-backed inserts in the form of cast decorative emblems, comprising:
- a. [providing a series] releasably maintaining an arrangement of a plurality of flat decorative foil shapes on a support sheet such that the plurality of shapes is on the sheet at the same time, onto which shapes a clear, hard plastic composition suitable as a substitute for vitreous enamel is to be cast, each of said foil shapes [each] having a top and bottom surface, each of said foil shapes also having sharply defined peripheral sides which intersect with said top surface, and each of said foil shapes having an adhesive coated on said bottom surface,
- b. holding said [series] arrangement of foil shapes in a manner in which each shape is maintained flat and horizontal on a [supported] supporting surface free from surrounding side walls by temporarily securing said support sheet to the supporting surface,
- c. casting a measured amount of said plastic composition in liquid form, which liquid is poorly wetting with respect to the top surface of said foil shapes, directly onto the top surface of each of said foil shapes in a casting sequence with respect to the arrangement in which each foil shape receives a measured amount of said plastic so that it flows to said sharply defined peripheral sides of the shapes and forms a positive meniscus without flowing over said sharply defined peripheral sides,
- d. allowing said cast plastic composition to cure while maintaining said support sheet for the arrangement of said foil shapes flat and horizontal, whereby said cured plastic composition gives a lens effect to the top surface of each of said foil shapes onto which it has been cast, [and]
- e. removing said support sheet from the supporting surface and said shapes from said sheet, f. utilizing said adhesive coated bottom surface of said foil shapes to adhere said inserts [onto] at their intended [base] decorative location.
2 more elements
A casting operation for producing a plurality of foil backed inserts having an enhanced ornamental design on the top of a surface thereof, comprising:
- a. providing each of a plurality of individual, flat decorative foil shapes with:
- (i) a top and bottom surface,
- (ii) an ornamental design on the top surface,
- (iii) a sharply defined peripheral side having intersections with the top surface free from side walls, and
- (iv) an adhesive on the bottom surface;
- onto which shapes a polyurethane casting composition suitable as a substitute for a vitreous enamel decoration is to be cast;
- b. arranging the plurality of individual shapes on a releasable support surface for presention of the support surface with the arranged shapes thereon to a casting station;
- c. and in the step of arranging said shapes:
- (i) maintaining each shape flat and horizontal on the support surface free from said side walls, and
- (ii) spacing the shapes apart from each other such as to avoid substantial static charge between said shapes during the step of casting;
- d. presenting the support surface having the plurality of arranged shapes thereon to a casting station;
- e. casting a polyurethane composition in a liquid form which is poorly wetting with respect to the top surface of said shapes directly onto the top surface of each of said shapes in a manner with respect to the plurality of arranged shapes in which
- (i) a regulated amount of said polyurethane sufficient to form a positive meniscus is dispensed onto the top of each shape, and
- (ii) said polyurethane flows to said sharply defined peripheral sides and forms a positive meniscus on the top of said shape without flowing over said sides;
- and
- f. maintaining the shapes flat and horizontal during the dispensing of the polyurethane and during the curing of the polyurethane, whereby, upon curing, the cast polyurethane composition enhances the ornamental design on the top of the shapes by providing a lens effect with respect to the design thereon.
13 more elements
Dependencies are inferred from the claim text.