Charles J. Miller has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: An apparatus for gravity assisted rotational motion includes a frame and a axle supported on the frame. A plurality of hollow arms are rotatably supported on the axle. At the outer ends of each arm is mounted a hollow reservoir which can be selectively filled or emptied of a heavy, flowable material such as water. Heavy plates are slidably mounted on rods and alternately open or close the reservoirs depending on the location of the plate above or below the reservoir as the device rotates. The transfer of water from one side of the rotational device to the other as the device rotates minimizes the energy input necessary to rotate the device, creating an attractive and interesting attraction for miniature golf courses, circuses, county fairs, and other events.
Abstract: A golf putter having a shaft and a head. The head has a main body with a ball-striking face that has a negative loft. The main body also has a weight distribution such that a majority of weight of the main body is located above a prime striking area on the ball-striking face.
Abstract: A blowout preventer of the cross ram type has at least a first and second pair of rams which are in the same plane or on the same level. The rams are reciprocable in insertable sleeve-like ram guideways which are replaceable to accommodate different types of rams; for example, a pipe ram or blind ram, or different configurations of rams from different manufacturers. This provides a blowout to preventer which has flexible functions and a low stack height and low weight. A spherical shape also provides lower weight, ease of guideway insertion, and reduction of stress concentrations.