Light bulb removing and installing assemblies are provided that can be easily configured for use with light bulbs different sizes and/or shapes. The assembly can include at least two different types of bulb holding devices that are removably connected to one another in a nested manner. The assembly can include bulb holding devices of different sizes that have an open bottom, which is removably connectable to a common base. The assembly can include a resilient finger holder and a common base, where the common base includes a number of upstanding, radially directed flexible members.

A device for installing and removing lightbulbs comprises a removable gripping element including fingers configured for gripping a lightbulb, a telescopic cylinder coupled to the gripping element, wherein the telescopic cylinder is adjustable to different lengths, and a base housing, comprising: an electric motor located within the housing, a battery, a coupler for coupling the motor to the telescopic cylinder, the coupler comprising a tubular element, wherein the rotating shaft of the electric motor is inserted into an orifice in the first end, and wherein the second end is inserted into the proximal end of the telescopic cylinder, a cylindrical element that surrounds at least a portion of the tubular element, and at least one flange that connects the cylindrical element to the tubular element. The base housing also includes a switch on an exterior surface, the switch for activating power to the electric motor, wherein upon activation of power to the electric motor, the electric motor rotates the shaft, resulting in rotation of the coupler, the telescopic cylinder and the gripping element, thereby rotating a lightbulb to which the gripping element is attached.

An apparatus may include a shaft and a base, where the base is affixed to a first end portion of the shaft, the base comprising a first end and a second end. The apparatus may further include a first end effector, where the first end effector is rotatably coupled to the first end of the base, wherein the first end effector is rotatable from a first closed position to a first open position. The apparatus may include a second end effector, where the second end effector is rotatably coupled to the second end of the base, wherein the second end effector is rotatable from a second closed position to a second open position. The apparatus may also include a spring, including a first spring end coupled to the first end effector, and a second spring end, coupled to the second end effector.

A support for balls (2) includes a receiving element (21) provided with a plurality of gripping resilient and arched members (210) adapted to define a gripping volume (211) of a ball. Each gripping member (210) has an end (214) constrained in a joining body (212) and a free end (215), a coupling body (22) adapted to constrain the receiving element (21) to a tubular support structure (100), wherein the coupling body (22) is constrained to the receiving element (21) by a longitudinal spacer element (23), whose first end (2309 is constrained to the coupling body (22) and a second end (231) is constrained to the receiving element (21).

A light bulb changing tool comprising a holding structure configured to engage a light bulb, the holding structure configured along an axis, the motorized holding structure configured to actuate in a first direction and a second direction. The light bulb changing tool further includes a force generator configured to selectively force the light bulb against the holding structure and a control unit configured to remotely communicate with the holding structure and the force generator, wherein the electronic control unit sends control signals to drive the holding structure to selectively move in the first direction and the second direction and/or to activate the force generator, The tool further comprises an arm member for positioning the holding structure in a desired configuration to engage the light bulb, wherein the arm member is coupled to the holding structure. The holding structure further comprises a rotator mechanism configured to rotate the holding structure in the first direction about the axis.

A light bulb changing tool comprising a holding structure configured to engage a light bulb, the holding structure configured along an axis, the motorized holding structure configured to actuate in a first direction and a second direction. The light bulb changing tool further includes a force generator configured to selectively force the light bulb against the holding structure and a control unit configured to remotely communicate with the holding structure and the force generator, wherein the electronic control unit sends control signals to drive the holding structure to selectively move in the first direction and the second direction and/or to activate the force generator. The tool further comprises an arm member for positioning the holding structure in a desired configuration to engage the light bulb, wherein the arm member is coupled to the holding structure. The holding structure further comprises a rotator mechanism configured to rotate the holding structure in the first direction about the axis.

A lampholder system comprises a lampholder having a center section for holding bi-pins on an endcap of a linear tubular lamp, a securing mechanism and a locking mechanism. The center section has a securing mechanism for securing the bi-pins on the endcap of the linear tubular lamp in the center section. The locking mechanism, when applied to the lampholder, prevents the bi-pins on the endcap of the linear tubular lamp from being removed out of the lampholder, consequently preventing the linear tubular lamp from being removed out of the lampholder.

There is described In another of its aspects, the present invention provides a radiation source assembly comprising: (i) an elongate radiation source; (ii) a positioning element connected to a proximal portion of the elongate radiation source; and (iii) a connecting portion secured to a proximal portion of the positioning element and configured to engage a support element to maintain a distal portion of the elongate radiation source in a cantilevered position. The present radiation source assembly is configured such that the distal portion of the radiation source is cantilevered with the respect to the distal portion of the protective sleeve in which it is disposed. This feature obviates the need to use spacers, stops, springs and the like in a distal portion of the protective sleeve to maintain correct position of the radiation source within the protective sleeve. Further, the present radiation source assembly is advantageous in that allows for withdrawal of the radiation source from the radiation source assembly without the need to disengage all of the components. Thus, it is possible to replace a single radiation source by removing it from the protective sleeve during operation of the fluid treatment system. This operation can be accomplished quickly without the need to shut down the fluid treatment system or otherwise compensate for the fact that one of the radiation source is being serviced.