A ski made of synthetic resins composed of upper and lower plates and side plates defining the outer shape of the ski, wherein the upper and lower plates are provided with a plurality of longitudinal ribs at the inner surfaces thereof each having a cross section of a series of projection adapted to mesh with each other provided on the opposing plate, said ribs being provided with such incisions therealong that allow bending of the upper or lower plate without restriction due to the ribs, and the...

A strip of material for the production of clothing, particularly for the duction of doll's dresses, comprises a blank defined by cutting lines and seam areas directly on the material, the seam areas having adhesive thereon for securing the seams together.

A modular structure for enclosing a privacy booth, for example, in restrooms. The modules are integrally molded from plastic material such as high impact polystyrene foam. Shells, webs and fins are integrally molded onto the panel structure and extend generally at right angles to the panel structure thereby providing reinforcement. A door jamb and hinge mounting structures are molded into the modules. Recesses are molded in the module for the locks and hinges. The panels have bifurcated rear end...

A polyurethane molding is composed of at least two different polyurethane materials, namely of a polyurethane gel and a polyurethane foam. The foam and the gel are arranged in layers one above another so that both materials act together as spring or damping element with respect to a load in the transverse direction. These moldings may preferably be used as seat cushions.

Shears made of cut parts of a steel sheet, the upper and lower portions being integrally structured and each having a cutting blade, a shank and a finger hole.

This invention relates to copolymers and hydrogels formed by copolymerization of a hydrophilic monomer from the group of dihydroxyalkyl acrylates and methacrylates and a substantially water insoluble monomer from the group of alkyl acrylates and methacrylates. The preferred copolymer of the invention is formed from methyl methacrylate and glyceryl methacrylate (2,3-dihydroxypropyl methacrylate). The hydrogels of the invention have unique physical and physiological properties which are particular...

A plastics crate having converging opposite side walls and diverging corner parts connecting the side walls. The inner circumference of the crate in a plane parallel to the bottom is at least not decreased from the entire height of the crate.

A pouch is formed from a section of coextruded polymer tubing, which is pressed flat, folded over along a longitudial axis, and heat sealed along the sides, whereby the opposed walls of the pouch are each composed of two thicknesses of the coextruded material. The outermost laminate of the coextruded tubing that form the innermost and outermost surfaces of the pouch walls is composed of a polymer, such as low density polyethylene, which can be rapidly and reliably heat sealed in the formation of...

A medical appliance suitable for use in direct or indirect contact with blood, such as an artificial valve, artificial blood vessel, blood transfusion set, solution infusion set, or blood bag characterized by being composed of 100 parts by weight of polyvinyl chloride and as plasticizer 50 to 100 parts by weight of thermoplastic polyurethane of the polyester type, said polyurethane having a softening point of about 70.degree.C and giving no spot other than that of the origin at the same position...

A bearing made of a synthetic resin and adapted for use with small precision instruments and the like includes a bearing body having an external flange and protrusions axially spaced from the flange. The bearing body is received in a base plate having an opening and notches corresponding to the spacing and configuration of the protrusions in the bearing body. Cooperable securing means are provided on the protrusions and the base plate whereby upon insertion of the bearing body and protrusions in...