Abstract: In an injection molding process for creating gripping surfaces in plastic articles a mold is provided which positions a cavity within the plastic article near where the gripping surface is needed. The parameters of the injection molding processes can be controlled to either increase or decrease the gripping surfaces by regulating the amount of shrink in the plastic. Three of the controlled parameters that determine the size of the gripping surface are the injection pressure, melt index of the plastic and the temperature of the cooling water.

Abstract: A multiple layer suction holder is disclosed in which a lower attaching layer is made of a soft, flexible material having a neck extending therefrom. A shell is fitted on top of the lower attaching layer where the shell is made from a flexible material which is harder than the soft, flexible material of the lower attaching layer. The suction holder is further provided with connecting devices which force the shell against the lower attaching layer in order to provide an internal pressure in the lower attaching layer directed toward the mounting surface. Hence, air cannot readily pass under the lower attaching layer. The multiple layer suction holder provides maximum contact with the mounting surface and maximum memory that results in longer life of the suction holder.

Abstract: A pair of mounting brackets are disclosed which are readily removably but securely attach to any window for purposes of mounting a variety of window treatments in an aesthetic manner. The mounting brackets are attached to the window by a plurality of suction cups. Each bracket is comprised of a base plate and an elongated mounting element oriented substantially perpendicular to the base plate. The mounting element is adapted to receive one of a shade and a curtain rod substantially above the window and outside of the periphery of the window. When in a closed position the window treatment blocks any significant light or air draft from being transmitted from the exterior of the building to the interior of the building. A connecting portion having a configuration which conforms to the window frame is provided between the base plate and the mounting element.

Abstract: The invention relates to a hook having a spiral, curved in such a way so as to exert pressure on most curved or bent surfaces, such as a rain gutter, from which it may be hung. The hook is designed to have a wire of Christmas lights or other type of cord passed through the opposite end. In operation, the hook is held tightly against the gutter wall by the curvature of its spiral shape. The disclosed technique allows the application and removal of the device and Christmas lights without using a ladder or requiring any permanent modification of the home.

Abstract: A device is disclosed which utilizes either an offset-mounted hook, or an offset-mounted hook combined with an oval shaped cup body. The suction cup has a cup neck located in a position which allows the vacuum chamber between the cup and the mounting surface to be equidistant from all points on the perimeter of the cup when the cup is under a load. The hook which is attached to the cup neck is mounted along the perimeter thereof to assure proper orientation of the asymmetrical device.

Abstract: An improved suction cup made of a light transmissive material is provided having a head and a cup portion a concave interior surface adapted to contact a window and an exterior surface opposite said interior surface. A ridge of material is provided along the outer portion of the exterior surface, so that, when the suction cup is in a sealing position, the ridge of material is generally parallel to the mounted surface. In such an arrangement, light passing through the ridge of material continues in a straight path and does not converge at a focal point. Alternatively, surface deformations, such as grooves, circular ridges, dimples, and roughing, may be provided on the exterior surface of the suction cup. These surface deformations diffuse the light passing therethrough, preventing all of the light from converging at a focal point.

Abstract: An aquatic exercising device including a handle member having first and second ends having first and second resistance members operatively affixed thereto. The resistance members are connected by flat panels of variable width which enable resistance to be adapted to the strength and capability of the user. Movement of the aquatic exercising device through a body of water produces a resistance to enhance the exercising capability of an individual utilizing the device. The device may be filled with water through removable caps at each end and used as a gravity weight for exercising. The device may also be emptied of water and used for flotation or buoyancy resistance exercises.

Abstract: A fastening device uses a ribbed rivet to secure two materials together. The ribs on the rivet should have a height no greater than 0.005 inches on most plastics and be of a close proximity. This rivet can be pushed directly into, or pulled directly out of, a ribbed receiving bore without fear of stripping the threaded ribs. The rivet can be manufactured in a two-piece injection plastic mold in which the rivet is fully formed in the lower half of the mold. Because of the height and proximity of the ribs, the rivet can be removed from the mold without stripping the threaded ribs. Furthermore, the rivet can be formed in the same injection molding operation used to manufacture the receiving bore into which it is to be inserted.

Abstract: A suction cup and integral fastening device for hanging ornaments or other decorative objects is disclosed. A tether extends outward from a neck portion of the suction cup. Stopping members and protuberances of various shapes and sizes on the tether permit the tether to be inserted into a suitable opening in the neck member and prevent it from being removed. Alternatively, a ribbed rivet can be provided on the unattached end of the tether. This rivet can be inserted into a ribbed bore provided in the neck member. The ribbed surfaces interact to securely fasten the unattached end of the tether to the suction cup.