Abstract: This invention provides a pinch valve having a pinch region defined by a pair of rotating pinch elements. These pinch elements define a variable profile that substantially surrounds the entire circumference of a tube in the pinch region and that thereby ensures that the tube is always returned to the desired opening size at all valve adjustment settings in a range from fully open to fully closed. More particularly, the pinch elements are provided with a pinch region that defines a surface geometry that includes a continuously variable-length (ramping) linear segment, disposed at a continuously variable depth (ramping from full open to fully pinched), that pinches the walls into a pair of opposed parallel lines throughout the majority of their rotational movement/adjustment range.

Abstract: Disclosed is a lighting apparatus of the type having a retainer, a lamp holder held by the retainer, and a lamp secured with respect to such holder. In the improvement, the lamp holder has a pair of support edges spaced from one another by a first dimension. The retainer includes first and second notches, each having a pair of notch edges spaced from one another by a second dimension which is greater than the first dimension. So configured, the holder may be removed through the notches without having access to the rear of the apparatus. In a specific embodiment, the lamp holder is a sphere truncated along two planes to form an "eyeball-like" structure which may be moved in the retainer for adjusting the position of the light beam. A new method is also disclosed.

Abstract: A combination throttle/shift control system, configured for providing the full control of throttle and shift functions on a single lever, taught in the exemplary embodiment in conjunction with a marine propulsion system. The preferred embodiment of the present invention allows the full control of propulsion systems throttle and control functions in a single lever, as opposed to most traditional designs, which require the utilization of separate control levers and cables. This is accomplished via the utilization of a relay triggered actuator arrangement wherein there is provided a magnetic switch system for monitoring the positioning of the actuator travel rod relative a switched relay system. The present invention simplifies both the use and mechanical complexity of throttle and shift control systems, resulting in an appreciable increase in the ease of use, while reducing overall expense and maintenance requirements.

Abstract: A method of making an isolator flow device for use in a process fluid system. The device has a body and an elastomeric sensor ring in the body, through which process fluid flows. There is an annular space outside the sensor ring for communicating outside the body to sense pressure on the ring by the process fluid. In the method, the ring is formed by in-situ molding to the body, and is bonded to the body at its opposite ends, leaving an intermediate portion unbonded. Then, the elastomer will shrink annularly to create an annular space between the body and the ring.