Process for molding cushion articles
AssigneeSears Manufacturing Company
InventorsGeorge L. Bethell, Donald F. Burch, Lysle R. Hinkhouse
Life of this patent
Estimating the term…
Abstract
A cushion article, such as a seat cushion or the like, for snapping in place onto an appropriate seat support without additional attaching means. The seat cushion has a foam body with a snap-ring member molded integral with a peripheral portion of the body, the snap-ring member providing means for snapping the seat cushion over the seat support. A process and a mold assembly are disclosed for molding the seat cushion, utilizing the snap-ring member as an integral part of the process and mold assembly to evacuate entrapped air from the mold cavity.
Claims17
A process for molding a seat cushion or the like which can be secured in place onto a seat support without additional attaching means, comprising the steps of:
- providing a mold having the shape of a desired seat cushion with a peripheral portion complementary to the periphery of the seat support and being adapted to position securing means in the mold;
- locating securing means in said mold in the area of the peripheral portion of the seat cushion, the securing means having means for venting air entrapped within the mold, the securing means providing means to secure the seat cushion over the seat support;
- pouring foam into said mold and curing the foam to form the seat cushion, the foam adhering to the securing means to hold the securing means in proper located position as an integral part of the seat cushion on removal of the cured seat cushion from the mold;
- and
- evacuating the entrapped air during a molding operation through conduit means between said securing means and the exterior of the mold.
A process for molding a seat cushion or the like with an integral support member, comprising the steps of:
- providing a mold having the shape of a desired seat cushion and being adapted to position a support member in the mold;
- locating a support member in said mold, the support member having means for venting air entrapped within the mold;
- pouring foam into said mold and curing the foam to form the seat cushion, the foam adhering to the support member to hold the support member in proper located position as an integral part of the seat cushion on removal of the cured seat cushion from the mold;
- and
- evacuating at least part of the air from within the mold through said vent means in the support member during the curing of said foam.
A process for molding a cushion article with an integral support member, comprising the steps of:
- providing a mold having the shape of the desired cushion article and being adapted to position a support member in the mold;
- locating a support member in said mold, the support member having means for venting air entrapped within the mold;
- pouring foam into said mold and curing the foam to form the cushion article, the foam adhering to the support member to hold the support member in proper located position as an integral part of the cushion article on removal of the cured cushion aritlce from the mold;
- and
- evacuating at least part of the air from within the mold through said vent means in the support member during the curing of said foam.
Dependencies are inferred from the claim text.