Abstract: A collapsible protective helmet (10) comprises an impact-resistant base body (11) intended to encircle the head of a wearer and an impact-resistant crown (12) coupled to the base body by coupling means to be movable between a protective position in which the crown is supported by the base body in an orientation in which the crown covers the top of the head of the wearer and a stored position inverted relative to the protective position in which the crown is supported by, but nested in, the base body. The helmet further comprises releasable locking means for locking the base body (11) and crown (12) together in each of the two positions of the crown.

Abstract: A collapsible protective helmet (10) comprises an impact-resistant base body (11) intended to encircle the head of a wearer and an impact-resistant crown (12) coupled to the base body by coupling means to be movable between a protective position in which the crown is supported by the base body in an orientation in which the crown covers the top of the head of the wearer and a stored position inverted relative to the protective position in which the crown is supported by, but nested in, the base body. The helmet further comprises releasable locking means for locking the base body (11) and crown (12) together in each of the two positions of the crown.

Abstract: An expandable device includes a base having top and bottom sides, an expanding mechanism operably coupled to the base, a button operably coupled to the expanding mechanism, and first and second magnetic members operably coupled to the base and the button, respectively. The expanding mechanism is selectively movable between a first configuration where the button is disposed in a first, collapsed configuration and a second configuration where the button is disposed in a second, expanded configuration. In the first, collapsed configuration, the first magnetic member engages the second magnetic member to retain the button in the collapsed configuration.

Abstract: A switch, and a dual lamp and switch combination comprising two conductive strips spaced from each other and each having a contact point adjacent an upper end. The conductive strips contacting filament wires of the lamp or electrical conductors of a power line. A handle including a base is pivotably mounted relative to the contact points, and a conductive member operated by the handle, selectively contacts at least one of the contact points. The conductive member is integral with at least a portion of the conductive member and engages a metallic screw-on section of the lamp or electrical conductors of the power line.