Abstract: An improved arm wrestling apparatus for competitively matching the physical strength of two or more players as between the players. The apparatus includes first and second arm rods for transferring the forces exerted by one or more players along to the other players. The first and second arm rods are rotatably connected to each other through first and second couplers and a connector bar to prevent the arm bars from rotating beyond a predetermined angle. A set of arm bars are fixedly connected to the ends of the first and second arm rods for accepting and exerting the forces exerted and accepted by the players. The arm wrestling machine also includes a locking assembly for halting and releasing the connector bar. The locking assembly includes a support for the locking pin, a spring for biasing the locking pin in one direction, a lever for transferring force to the locking pin, and a controller for exerting or removing forces on the lever. The arm wrestling apparatus also includes a game portion.

Abstract: A pressure activated valve apparatus for axial in-line positioning within sanitary systems, such as steam lines for food processing, in which the entire apparatus, including the spring biasing and valve elements are positioned within the flowing media. The spring biasing element is protected from contact with the flowing media, through the use of a sealed fluid-dynamic cover so as to allow the passing media to flow over it with a minimum amount of resistance. The entire apparatus is connected to an incoming and an outgoing conduit so as to enable easy removal for replacement or maintenance purposes, with a minimum amount of cost and effort. A fluid-dynamic cover is fitted over portions of the valve assembly to isolate same from the fluid itself, while being removable to enable facilitated replacement or maintenance of the internal valve actuation parts.