Abstract: A hanging device and method using a male portion, a female portion, and a leveling portion to hang display items level with the ground. The male portion has a V-shaped dovetail tenon and the female portion has a V-shaped dovetail mortise adapted to male with the dovetail tenon. The leveling portion is also adapted to mate with the V-shaped mortise of the female portion.

Abstract: An electrical connector has a male portion having a center channel passing therethrough and having a dovetail tenon. The center channel of the male portion is configured to hold an electrical cord of a power consuming device. A female portion has a center channel passing therethrough and a dovetail mortise adapted to mate with the dovetail tenon. The center channel of the female portion is configured to hold electrical wires from an electrical power source.

Abstract: A hanging device and method using a male portion, a female portion, and a leveling portion to hang display items level with the ground. The male portion has a V-shaped dovetail tenon and the female portion has a V-shaped dovetail mortise adapted to male with the dovetail tenon. The leveling portion is also adapted to mate with the V-shaped mortise of the female portion.

Abstract: A pipe system connector having a male portion, a female portion, and a circular gasket positioned between the male portion and female portion to form a water-tight seal. The male portion has a V-shaped dovetail tenon and the female portion has a V-shaped dovetail mortise adapted to male with the dovetail tenon. The male portion has a gage point on the dovetail tenon and the female portion has a corresponding gage point on the dovetail mortise, wherein the gage points are used to position the male portion in relation to the female portion so that a water-tight seal is created between them. The dovetail tenon and the dovetail mortise may have rounded side edges to provide increased tensile strength to the connector.

Abstract: An electrical connector has a male portion having a center channel passing therethrough and having a dovetail tenon. The center channel of the male portion is configured to hold an electrical cord of a power consuming device. A female portion has a center channel passing therethrough and a dovetail mortise adapted to mate with the dovetail tenon. The center channel of the female portion is configured to hold electrical wires from an electrical power source.

Abstract: An inertial weight for physical conditioning includes a hollow housing having an inner cavity with first and second spaced apart opposed ends and defining a longitudinal axis extending therebetween. The inner cavity tapers transversely outwardly along the longitudinal axis from a mid section to each of the first and second spaced apart opposed ends. A viscous fluid mass is carried in the inner cavity, the viscous mass filling the inner cavity less than full to allow the viscous mass to move within the inner cavity. An attachment member is affixed to at last one of the opposed ends.

Abstract: A quick connect/release wheel and hub assembly includes first and second hub portions. The first hub portion has a dovetail groove formed therein and the second hub portion has a mating dovetail ridge formed therein. The dovetail ridge is positioned to be engaged in the dovetail groove by relative transverse movement of the first and second hub portions from a non-coaxial orientation into a coaxial orientation. The engaged dovetail ridge and dovetail groove hold the first and second hub portions fixedly together in the coaxial orientation. A movable member is coupled to either the first or second hub portion and movable between a position in which the hub portions are held in the coaxial orientation and relative transverse movement is prevented, and a position in which relative transverse movement of the hub portions from the coaxial orientation into the non-coaxial orientation is allowed.