Abstract: An impact resistant insert for a protective pad and having a stiffener layer of impact resistant, thermoformable material retaining a preset curve at ambient temperature such as to substantially return to the preset curve upon deformation, the stiffener layer becoming temporarily more flexible under heat such that the preset curve can be modified to a different preset curve with the stiffener layer subsequently maintaining the different preset curve at ambient temperature. Also, an impact resistant insert for a protective pad and having a front layer of flexible material, a stiffener layer of multicell material having front and rear surfaces with the front surface being connected to the front layer, the stiffener layer being substantially resistant to impact forces, retaining a preset curve and substantially returning to the preset curve upon deformation, and a rear layer of flexible material connected to the rear surface of the stiffener layer.

Abstract: An impact resistant insert for a protective pad and having a stiffener layer of impact resistant, thermoformable material retaining a preset curve at ambient temperature such as to substantially return to the preset curve upon deformation, the stiffener layer becoming temporarily more flexible under heat such that the preset curve can be modified to a different preset curve with the stiffener layer subsequently maintaining the different preset curve at ambient temperature. Also, an impact resistant insert for a protective pad and having a front layer of flexible material, a stiffener layer of multicell material having front and rear surfaces with the front surface being connected to the front layer, the stiffener layer being substantially resistant to impact forces, retaining a preset curve and substantially returning to the preset curve upon deformation, and a rear layer of flexible material connected to the rear surface of the stiffener layer.

Abstract: An impact resistant insert for a protective pad and having a stiffener layer of impact resistant, thermoformable material retaining a preset curve at ambient temperature such as to substantially return to the preset curve upon deformation, the stiffener layer becoming temporarily more flexible under heat such that the preset curve can be modified to a different preset curve with the stiffener layer subsequently maintaining the different preset curve at ambient temperature. Also, an impact resistant insert for a protective pad and having a front layer of flexible material, a stiffener layer of multi-cell material having front and rear surfaces with the front surface being connected to the front layer, the stiffener layer being substantially resistant to impact forces, retaining a preset curve and substantially returning to the preset curve upon deformation, and a rear layer of flexible material connected to the rear surface of the stiffener layer.

Abstract: There is provided a method for recovering energy from glass windshields removed from vehicles which comprises the step of separating a polyvinyl butyral polymer from the glass in a windshield and using the recovered polyvinyl butyral polymer as a fuel to replace a fossil fuel in an energy creating plant or alternatively to use the polyvinyl butyral polymer as an adhesive.

Abstract: There is provided a method for recovering energy from glass windshields removed from vehicles which comprises the step of separating a polyvinyl butyral polymer from the glass in a windshield and using the recovered polyvinyl butyral polymer as a fuel to replace a fossil fuel in an energy creating plant or alternatively to use the polyvinyl butyral polymer as an adhesive.

Abstract: A security cover for preventing a person lying on a bed from falling off the bed having a cover made of a flexible but sturdy material and a line removably fastened to the longitudinal sides of the bed. The cover includes loops mounted on each sides. The loops may be secured to the line in sliding relationship so that the cover forms, with the mattress, an enclosed space around the person lying on the bed thereby preventing this person from falling off the bed.

Abstract: The problem of ill-fitting dentures is cured by providing a compensating spacer on the surface of the stone model corresponding to the outside of the alveolar ridge to compensate for inwardly-directed shrinkage of the denture upon release from the stone model.

Abstract: An apparatus for and method of forming a backing of plastic material at the rear edge of a cutting blade in which the edge is firmly imbedded by passing a conveyor on which the blades are arranged seriatim through an extrusion die the conveyor having feed lugs engaging the ends of the blades adapted also to maintain an accurate lateral position of the blades on the conveyor through the die, and continuing the advance through a cooling means and then through a cutting mechanism which severs the strip into individual blade units.