Abstract: A exercise roller device including a center roller portion provided with shaped end roller portions, and the center roller portion provided with a centered circumferential groove. A method of making the exercise roller device.

Abstract: A exercise device, for example, and exercise ball device. The exercise device includes a frame and at least one panel or multiple panels.

Abstract: An improved jump rope handle and method of assembling the same. The jump rope handle includes a head. The head includes a channel, a set hole perpendicular to the channel, and a set mechanism adjustably insertable into the set hole. The jump rope handle further includes a grip. The grip includes a cylindrical member, first and second bearings arranged along the cylindrical member, an inner bushing arranged along the cylindrical member between the first and second bearings, and a sleeve around said inner bushing, said bushing being fixedly attached to an inner surface of the grip. An end portion of the cylindrical member is fixedly attached to the head whereby the cylindrical member and the head rotate together about a same axis. The channel of the head is configured to receive a rope. The set mechanism is configured to be inserted into the set hole to secure the rope.

Abstract: A retention collar for securing weights to a barbell that includes two side plates with a pull bar and a cam lever. Two sets of pressure pins provide a frictional fit with the barbell when the collar is in its closed position, which is achieved by use of the am lever. The side plates are secured to each other by screws or rivets.

Abstract: A retention collar for securing weights to a barbell that includes two side plates with a pull bar and a cam lever. Two sets of pressure pins provide a frictional fit with the barbell when the collar is in its closed position, which is achieved by use of the am lever. The side plates are secured to each other by screws or rivets.

Abstract: A system and method for handling laboratory information includes a graphical user interface with a plurality of windows. A palette of icons is provided in a first one of the windows, each icon representing a predetermined task to be executed by a processor in communication with the graphical user interface. The processor is also in communication with a database containing static laboratory data (such as the type of sample to be analysed) as well as dynamic laboratory data (such as the name of the specific sample to be tested and the results of that test). A user can select icons from the first window and “drag and drop” them into a second window. A sequence of tasks may thus be built up, in the form of a tree structure, and when run the processor executes the sequence of tasks in turn by reference to the static and dynamic laboratory data.

Abstract: A method and apparatus for measuring ethanol vapor concentration wherein a cell output is plotted with respect to time. The gradient of the steady rate portion of the plot is determined and an ethanol vapor concentration signal is generated from the determined gradient.