Abstract: A universal adaptor plug is disclosed as an encased arrangement of elements, which includes a single rotatable knob for attachment to and for rotation of a cam axis for mounting at least three cam elements. The front face of the casing defines openings through which project multiple sets of plug pins movable by the cams and cam followers. Each set of plug pins is attached to a base which causes retracting of the plug pins by the base's attachment to retracting springs. The continuous unidirectional turning of the knob, in turn, projects and enables retraction of a set of plug pins for a certain country or group of countries.

Abstract: A folding child frame carrier for carrying a child on a person's back, comprising: a collapsible front frame portion, the front frame portion having a longitudinal axis and a transverse axis, the front frame portion being symmetrical about the longitudinal axis and having a left side and a right side, and the front frame portion being collapsible about the longitudinal axis and the transverse axis from an extended position to a contracted position, the front frame portion having an upper portion, a lower portion, and a forward-extending portion, the forward-extending portion being pivotally connected to the upper portion at a first pivot point, and the upper portion being pivotally connected to the lower portion at a second pivot point; a flexible child holder attached to the front frame portion between the upper portion and the forward-extending portion; a rear frame portion also symmetrical about the longitudinal axis and having a forward end pivoting on the front frame portion at a third pivot point and a

Abstract: A folding child stroller and frame carrier convertible by using only one hand between use as a ground-contacting four-wheel stroller and use as a frame carrier for carrying a child on a person's back, consists of a front frame portion having a front end supporting at least two front wheels, a rear frame portion having a rear end supporting at least two rear wheels, a flexible child holder attached to the front frame portion, the rear frame portion pivotally connected to the front frame portion at a pivot point and movable between an extended position in which the rear end is substantially separated from the front end and a contracted position in which the rear end is adjacent the front end, a handle portion connected to the front frame portion and pivotable downwardly and forwardly using only one hand from an extended position in which the handle portion is substantially in-line with the front frame portion and a folded position in which the handle portion is adjacent to the rear frame portion, and an actuati