초록 ▼

In a novel method of manufacturing articles, primarily scrap plastic materials are collected and then melted. The melted scrap plastic materials are then formed into a semi-molten object which is placed between the male and female portions of a die set. The die set is then closed under a predetermin

In a novel method of manufacturing articles, primarily scrap plastic materials are collected and then melted. The melted scrap plastic materials are then formed into a semi-molten object which is placed between the male and female portions of a die set. The die set is then closed under a predetermined pressure and for a predetermined time to force the semi-molten object into the shape of the article to be manufactured. While the die set is closed under pressure, the article therein is cooled to effect stabilization, following which the die set is opened to allow removal of the article. Articles formed in accordance with the invention are inexpensive and exhibit good structural characteristics and finish.

대표청구항 ▼

A wheel stop barrier for automotive vehicles comprising: a first member having an inverted v-shaped cross section and including upwardly convergent side walls, a normally horizontally disposed top wall interconnecting the upper ends of the side walls and opposed end walls interconnecting the ends of

A wheel stop barrier for automotive vehicles comprising: a first member having an inverted v-shaped cross section and including upwardly convergent side walls, a normally horizontally disposed top wall interconnecting the upper ends of the side walls and opposed end walls interconnecting the ends of the top wall and the side walls, said walls defining an enclosed hollow space within said first member; said first member comprising an integral structure formed entirely from remelted scrap thermoplastic material and therefore being inexpensive to manufacture; said first member being characterized by sufficient structural rigidity to withstand repeated impact by automotive vehicles without significant change in shape; said first member being further characterized by a predetermined color; a second member having a second predetermined color characterized by a high visual contrast with respect to the first predetermined color of the first member so as to increase the visibility of the wheel stop barrier; and said second member having a predetermined geometrical configuration and being adapted for contact with the molten scrap thermoplastic material that is used to form the first member so that the molten scrap thermoplastic material flows around the predetermined geometrical configuration of the second member to form a mechanical interlock between the first and second members comprising the wheel stop barrier.