Abstract: A coupling device that provides a liquid tight seal at the connection with a conduit with easy installation. The device comprises a tubular connector body, a compression nut, a first sealing ring, a second sealing ring, a ferrule, and a lock nut. The coupling device may be installed fully assembled and does not require disassembly of the packaged product before installation. In the connector body a radial ledge is formed within the tubular spaces between the first and second ends. The radial ledge of the connector body has at least one depression. The ferrule has a tubular body with a radial flange extending from a first end portion. At least one protrusion extends from the radial flange that corresponds to the depression on the tubular body. When the depression of the tubular body engages the protrusion of the ferrule, it restricts the ferrule from relative rotation. This restriction allows that the coupling device be installed fully assembled.

Abstract: A multi-sports ball/disk return net system and a method thereof that consistently returns a ball/disk hit, kick, thrown or struck into it back toward a user and that is portable and easy to assemble and disassemble. The multi-sports ball/disk return net system has a frame and a net mounted on or across the frame. The net forms an upper U-shape forward bulging pillow having a square net pattern and a lower U-shape channel or hammock with the square pattern at the opposite ends of the U-shape channel being skewed to become diamond shapes. The net is configured to cause a projectile propelled into the U-shape pillow to drop down to the U-shape channel, which funnels the ball to the lowest and central point of the U-shape channel for discharge toward the user.

Abstract: An amusement device having an endless flexible strand forming a loop and an inline traction drive unit that drives a portion of the strand to impart inline linear velocity to the strand to create an elongated loop extending from the drive unit. The amusement device includes a housing with a handle and a rotatable cup with an ejection aperture for changing the direction of the driven loop.

Abstract: A prosthesis in the form of a cage having opposed complimentary bearing surface assemblies. The bearing surface assemblies moveable towards and away from each other. The moving mechanism being part of the bearing surface assemblies. Each of the bearing surface assemblies having an outer bearing surface whereby movement of one bearing surface assembly in one direction will move the bearing surface assemblies away from each other and movement in the opposite direction will move the bearing surface assemblies towards each other.

Abstract: A ball-point pen comprising: a. an ink reservoir, b. a penpoint tip, c. a writing ball rotationally disposed in and partially exposed from the penpoint tip, d. an ink feed bore in fluid communication with the ink reservoir, e. a ball chamber holding the writing ball and formed in fluid communication with the ink feed bore, f. an annular seat formed in the chamber so as to support the writing ball, and g. radial grooves formed in the annular seat, characterized in that each of the radial grooves is of a width of more than 0.2 mm.

Abstract: A plasma discharge display device comprises a generally columnar chamber with a pair of electrodes tangentially located at opposite ends of the chamber for ionizing gas in the chamber. The columnar chamber comprises a cylindrical portion interconnected with a generally spherical portion. The configuration of the chamber generates an active (but not hyperactive) plasma discharge that is continuous, has a full motion and with minimal noise without the need of additional adulterants for instability.

Abstract: An oily ink for writing instruments comprising e. colorant, f. resin, g. an organic solvent and h. a gelling agent, wherein the said gelling agent comprises a soluble gelling agent with the solubility of from about 0.1 to about 20% by weight at a temperature of 20° C. to the said organic solvent, and the viscosity of the ink is not less than 700 mPa·s when the rate of shear is 0.1 (1/s) and not greater than 500 mPa·s when the rate of shear is 100 (1/s).