Method of making resilient seats and cover lids therefor for water closets
AssigneeNew Century Products Co., Ltd.
InventorGeorge W. Blount
Life of this patent
Estimating the term…
Abstract
A resilient synthetic resin toilet seat which includes a preformed stiffening portion having an internal foamed core. The core is enveloped in an unfoamed self-skin. A cushioning portion is molded thereon and has an internal foamed core enveloped in a tough but resilient self-skin unitarily extending from the top and sides of said stiffening portion. A resilient synthetic resin toilet seat lid having an internal foamed core enveloped in an unfoamed skin, a method of making the seat and lid by molding, as well as molds for use in such molding, are also disclosed.
Claims26
A method of manufacturing resilient unitary integrally cushioned toilet seats, comprising the steps of in a first mold molding a stiff but resilient synthetic resin preformed stiffening portion, removing said preformed stiffening portion from the first mold, mounting said preformed stiffening portion in a second mold, charging said second mold with additional uncured synthetic resin mixture which is foamable, permitting said charge to cure to form a seat having a self-skinned internally foamed cushion unitarily extending from the sides and top of said preformed stiffening portion.
A method of manufacturing resilient lidded unitary integrally cushioned toilet seats, comprising the steps of in a first mold molding a cushioned lid by coating molding cavity surfaces with a mixture of uncured synthetic resin curable to form a pigmented synthetic resin surface layer, permitting said coating to dry at least to tacky condition, charging said mold cavity with an uncured synthetic resin mixture which is foamable, permitting said charge to foam and said coating and charge to cure to form an integral lid having a foam core encased in a tough resilient flexible self-skin carrying an integral pigmented surface layer, in a second mold molding a stiff but resilient synthetic resin preformed stiffening portion, removing said preformed stiffening portion from the second mold, coating mold cavity surfaces of a third mold with a mixture of uncured synthetic resin curable to form a pigmented synthetic resin surface layer, permitting said coating to dry at least to tacky condition, mounting said preformed stiffening portion in said third mold cavity, charging said third mold with additional uncured synthetic resin mixture which is foamable, permitting said charge to foam and said coating and charge to cure to form a seat having a self-skin internally foamed cushion unitarily extending from the sides and top of said preformed stiffening portion and carrying an integral pigmented surface layer and hingedly coupling the lid to the seat so the lid may be swung to overlie the seat with the foamed central portion of the lid in generally concentric spanning relation to the opening in the seat.
A method of manufacturing resilient unitary integrally cushioned toilet seats, comprising the steps of in a first mold molding a stiff but resilient synthetic resin preformed stiffening portion, removing said preformed stiffening portion from the first mold, coating the surfaces of a second mold cavity with a mixture of uncured synthetic resin curable to form a pigmented synthetic resin surface layer, permitting said coating to dry at least to tacky condition, mounting said preformed stiffening portion in said second mold, charging said second mold with additional uncured synthetic resin mixture which is foamable, permitting said charge to cure to form a seat having a unitary pigmented surface layer encasing a seat having a self-skinned internally foamed cushion unitarily extending from the sides and top of said preformed stiffening portion.
A method of manufacturing resilient unitary integrally cushioned toilet seats, comprising the steps of coating the molding bottom forming surface of a first mold cavity with a mixture of uncured synthetic resin curable to form a pigmented synthetic resin surface layer, charging said first mold with uncured synthetic resin mixture which is foamable, permitting said charge and coating layer to cure to form a stiff but resilient synthetic resin preformed stiffening portion having an integral pigmented layer on its bottom, removing said preformed stiffening portion from the first mold, coating the surfaces of a second mold cavity with a mixture of uncured synthetic resin curable to form a pigmented synthetic resin surface layer on at least the mold cavity surfaces which will not be covered by the bottom of the preformed stiffening portion, permitting said coating to dry at least to tacky condition, mounting said preformed stiffening portion in said second mold, charging said second mold with additional uncured synthetic resin mixture which is foamable, permitting said charge to cure to form a seat having a unitary pigmented surface layer encasing a seat having a self-skinned internally foamed cushion unitarily extending from the sides and top of said preformed stiffening portion.
Dependencies are inferred from the claim text.