Abstract: A cleaning tool particularly adapted to cleaning gutters from a position below the gutter, such as on the ground. The invention removes most of the manual work associated with operating the device and integrates with a motor providing an adjustable motor driver switch to control the tension of the rope to close the far end gripper, pick debris and release the debris using the motor control buttons. The far end of the pole has a video capturing device paired with a video display device near the near end.

Abstract: The present invention is a device for installing and removing partially obstructed, upward-facing lightbulbs. It is comprised of a gripping element, a weight, a flexible rotary shaft having two ends, and an extension pole having two ends. The gripping element, itself, is comprised of a hollow, three-dimensional gripping element body having an inner and outer surface and a plurality of flexible, tactile members. The hollow, three-dimensional gripping element body is open at one end and closed at the other. At the open end, the plurality of flexible, tactile members are arranged about a peripheral rim at the opening. When the device is placed over a lightbulb, the flexible, tactile members capture the lightbulb. Rotating the extension pole will cause the lightbulb to rotate.

Abstract: A toolkit includes a rotation member, a driving member and an engaging member. The driving member is assembled in one side of the rotation member. The engaging member is assembled in another side of the rotation member. Wherein the driving member is rotatable relative to the engaging member by rotating the rotation member.

Abstract: A light bulb remover extracts a broken light bulb from a socket of a high-hat light fixture. The light bulb remover has an extension pole and an extractor head attached to the extension pole. The extractor head has a guide which defines an outer circumference of the extractor head and a bulb extractor configured for engaging in a base of the broken light bulb and creating a friction connection with the base of the light bulb. The bulb extractor is surrounded by the guide, and the guide has a diameter being less than a diameter of the high-hat light fixture and dimensioned so that when the light bulb remover is disposed within the high-hat light fixture the bulb extractor is self-aligned with a middle area of the base of the broken light bulb.

Abstract: An object retrieval device is disclosed. The retrieval device includes a retrieval end, a joint, and an extension arm. The retrieval end includes an adhesive portion and an arm portion. The arm portion includes a set of protrusions and adhesive portion includes surface segmentation. The joint is configured to pivot. The extension arm includes a first set of protrusions disposed at a first end of the extension arm. The first end of the extension arm is couplable to the arm portion of the retrieval end such that the first set of protrusions disposed on the extension arm align with the set of protrusions disposed on the arm portion of the retrieval end to form ridges.

Abstract: A method and system for cleaning complex, elevated fixtures and appliances having compound curves, such as but not limited to security camera lenses and light bulbs. The invention having two main parts. A first part comprised of a conventional, telescoping rod and a second part being a flexible adapter head configured to receive and secure a cleaning towel therein. Said flexible adapter head allows a user to access and clean difficult-to-reach fixtures positioned at various angles. The adapter head also containing a flexible hoop allowing the affixed towel to remain in contact with the feature being cleaned. Other embodiments may include a flexible adaptor head with collar that fits on a plurality of handles and rods such as broom handles and PVC pipes etc. according to a user's preference. An object of the invention is to provide a more accurate means to reach and clean elevated fixtures more efficiently.

Abstract: A quick connect/release camera mount apparatus and method includes an attachment device with a central body where the central body includes a first end and a second end. A quick connect/release coupler is provided on the first end and an attachment arm on the second end of the central body where the attachment arm includes a retainer device and a camera connection device is configured to connect with and be retained by the retainer device.

Abstract: 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.

Abstract: An apparatus comprising a spring-biased translatable member extending through a collar; a gripping unit including a platform member attached to the translatable member, the platform member configured to receive an adhesive member; and a capture cone attached to an upper portion of the collar. In one version, the gripping unit includes an adhesive member configured to fit into a recessed area of the platform member. The adhesive member has a “tacky” surface for gripping and controlling a light bulb during removal and installation.

Abstract: 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.

Abstract: An extendable multi-tool comprising an extendable pole and a head unit selectively detachably coupled together. The head unit comprises a grasping mechanism configured to engage a light bulb, a control switch and a rotation mechanism. The control switch configured to cause the grasping mechanism to become secured to a light bulb, and to cause the rotation mechanism to automatically detect when a light bulb is secured to the grasping mechanism and then rotate the grasping unit and the secured light bulb in a first direction based on the position of the control switch. The tool further comprises an arm unit for positioning the grasping mechanism in a desired configuration to engage the light bulb, wherein the arm member is coupled to the grasping mechanism.

Abstract: 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.

Abstract: Devices for changing a light bulb (e.g., a compact fluorescent lamp or CFL), especially for those installed in high places, are disclosed. The device has a cylindrical tubular structure with one end opening to accommodate a light bulb. In one embodiment, at least one flexible thin arm with one end shaped to form a hook is pivotably affixed to the tubular structure. In another embodiment, a shaped insert is disposed in the tubular structure to provide necessary friction force to hold the light bulb in place during the changing process. The present invention is suitable for changing various types of CFLs.

Abstract: A bulb changer attachment system comprising: a conical suction light bulb receiver having a distal end and a proximal end; a base having a top portion and a bottom portion; an adapter; and a vacuum hose attachment providing vacuum communication with at least one vacuum. The conical suction light bulb receiver is connected to the top portion of the base while the bottom portion of the base is connectable to the vacuum hose attachment via the adapter. A light bulb is received by the conical suction light bulb receiver such that an apex of the light bulb is suction-contacted by the proximal end of the conical suction light bulb receiver and an outer periphery is suction-contacted via the distal end of the conical suction light bulb receiver. The conical suction light bulb receiver is removeably-coupleable to the light bulb enabling a user to remotely access the light bulb for changing.

Abstract: An apparatus for handling spiral-type fluorescent light bulbs particularly for removing and installing different size spiral fluorescent light bulbs in a light fixture. The device is comprised of a main body made of a durable and flexible material and having a front and a rear surface, side surfaces and features; a means to secure a main body to a pole adapter; and a pole adapter for the securement of the main body to an extension pole or similar device. An alternative embodiment anticipates reinforcement strips internal to the main body to provide additional strength, especially when the device is twisted and in torsion. Another alternative embodiment provides an external containment means to enable various modes of containment features and permit different marketing themes.

Abstract: An extendable multi-tool comprising an extendable pole and a head unit selectively detachably coupled together. The head unit comprises a grasping mechanism configured to engage a light bulb, a control switch and a rotation mechanism. The control switch configured to cause the grasping mechanism to become secured to a light bulb, and to cause the rotation mechanism to automatically detect when a light bulb is secured to the grasping mechanism and then rotate the grasping unit and the secured light bulb in a first direction based on the position of the control switch. The tool further comprises an arm unit for positioning the grasping mechanism in a desired configuration to engage the light bulb, wherein the arm member is coupled to the grasping mechanism.

Abstract: 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.

Abstract: An extendable multi-tool comprising an extendable pole and a head unit selectively detachably coupled together. The head unit comprises a grasping mechanism configured to engage a light bulb, a control switch and a rotation mechanism. The control switch configured to cause the grasping mechanism to become secured to a light bulb, and to cause the rotation mechanism to automatically detect when a light bulb is secured to the grasping mechanism and then rotate the grasping unit and the secured light bulb in a first direction based on the position of the control switch. The tool further comprises an arm unit for positioning the grasping mechanism in a desired configuration to engage the light bulb, wherein the arm member is coupled to the grasping mechanism.

Abstract: A bulb changing system for elevated light bulbs is presented. The system has an elongate tube, a drive shaft with a drive handle, a drive gear, a driven gear, and a light receptacle configured to engage an exterior portion of the light bulb. In one aspect, the drive housing houses the drive gear and the driven gear therein a drive cavity and rotation of the drive handle causes the drive gear to rotate substantially along the longitudinal axis of the elongate tube, which in turn, causes the driven gear to rotate, which in turn, causes the light receptacle to rotate. As such, the light bulb is rotated into or out of engagement with a socket, depending upon the direction of rotation.

Abstract: 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.

Abstract: An installation tool for installing an escutcheon on a sprinkler assembly includes an extension member and a body portion. The body portion may be disposed on an end of the extension member. The body portion may include a sleeve adjustably engaging a base. The body portion may also include a recess adapted to releasably receive an escutcheon. The installation tool is adapted to remotely install the escutcheon to a sprinkler assembly.

Abstract: A bulb changing system for elevated light bulbs is presented. The system has an elongate tube, a drive shaft with a drive handle, a drive gear, a driven gear, and a light receptacle configured to engage an exterior portion of the light bulb. In one aspect, the drive housing houses the drive gear and the driven gear therein a drive cavity and rotation of the drive handle causes the drive gear to rotate substantially along the longitudinal axis of the elongate tube, which in turn, causes the driven gear to rotate, which in turn, causes the light receptacle to rotate. As such, the light bulb is rotated into or out of engagement with a socket, depending upon the direction of rotation.

Abstract: A bulb changer attachment system comprising: a conical suction light bulb receiver having a distal end and a proximal end; a base having a top portion and a bottom portion; an adapter; and a vacuum hose attachment providing vacuum communication with at least one vacuum. The conical suction light bulb receiver is connected to the top portion of the base while the bottom portion of the base is connectable to the vacuum hose attachment via the adapter. A light bulb is received by the conical suction light bulb receiver such that an apex of the light bulb is suction-contacted by the proximal end of the conical suction light bulb receiver and an outer periphery is suction-contacted via the distal end of the conical suction light bulb receiver. The conical suction light bulb receiver is removeably-coupleable to the light bulb enabling a user to remotely access the light bulb for changing.

Abstract: 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.

Abstract: An extendable multi-tool comprising an extendable pole and a head unit selectively detachably coupled together. The head unit comprises a grasping mechanism configured to engage a light bulb, a control switch and a rotation mechanism. The control switch configured to cause the grasping mechanism to become secured to a light bulb, and to cause the rotation mechanism to automatically detect when a light bulb is secured to the grasping mechanism and then rotate the grasping unit and the secured light bulb in a first direction based on the position of the control switch. The tool further comprises an arm unit for positioning the grasping mechanism in a desired configuration to engage the light bulb, wherein the arm member is coupled to the grasping mechanism.

Abstract: 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.

Abstract: A hand-held device for extracting a base of a light bulb from a socket, including a body portion, circular in cross-section, and of a diameter which is easily grasped by the human hand; and constructed of rubber or the like material which does not convey electrical current; a rubber jacket over the body portion having protrusions to allow the user to have a firm, non-slip grip on the device when in use; each end being conically shaped end; the first end being of an increasing conical diameter, so as to allow the end to be inserted into a typically sized light bulb base, and the second end being of a slightly less conical diameter to allow the end to be inserted into smaller bulbs, such as Christmas tree or chandelier sized bulbs. Each of the two conical ends would be hollowed out to a certain extent. Further the surface of each conically shaped end would comprise a plurality of parallel ridges which would provide a firmer grip between the device and the bulb base.

Abstract: 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.

Abstract: A light bulb changing tool comprises a holding structure configured to engage a light bulb. In some embodiments, the holding structure includes a suction cup configuration and in some embodiments, the holding structure includes a creased gripping configuration. An interconnect is configured to couple the holding structure with an arm member. The interconnect includes a receiving member for receiving a protruding member of the holding structure. In some embodiments, a securing member is included for securing the protruding member with the receiving member. The arm member is configured for positioning the holding structure in a desired configuration to engage the light bulb.

Abstract: A light bulb changing tool comprises a holding structure configured to engage a light bulb. In some embodiments, the holding structure includes a suction cup configuration and in some embodiments, the holding structure includes a creased gripping configuration. An interconnect is configured to couple the holding structure with an arm member. The interconnect includes a receiving member for receiving a protruding member of the holding structure. In some embodiments, a securing member is included for securing the protruding member with the receiving member. The arm member is configured for positioning the holding structure in a desired configuration to engage the light bulb.

Abstract: 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 comprising 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.

Abstract: The present invention is directed to a device for changing a fluorescent light, in particular a compact fluorescent light. Generally, the device comprises a light bulb receiving portion with a receptacle sufficient in size to accommodate a compact fluorescent light. The device further comprises a latching mechanism for engaging the bulb portion of a compact fluorescent light bulb, whereby the latching mechanism is located on the light bulb receiving portion and facilitates removal of a compact fluorescent light. By properly orientating the device around a compact fluorescent light, one can also use the device to install a compact fluorescent light.

Abstract: An object gripping device for removing and installing bulbs and other objects. The device has around its circumference three or more vertical gripping posts. The device uses a sun gear and planetary gears to transmit the user's twisting motion to a gripping force applied equally around the object's circumference. Furthermore, the gearing ratio can be adjusted to create more or less leverage or gripping force applied to the bulb or object. The device could also be applied to gripping any object that is semi-cylindrical in shape. For instance, a robot can use the invented gear system to pick up or grip objects in a factory, laboratory, hospital, space exploration or home setting. Instead of a handle used to rotate the sun gear a drive shaft can be attached. An electric motor, a gas or diesel engine, a hydraulic power pack can rotate the drive shaft.

Abstract: A light bulb changing tool comprising a motorized clasping mechanism configured to engage a light bulb, the motorized clasping mechanism configured along an axis, the motorized clasping mechanism configured to actuate in a first direction and a second direction; and a electronic drive unit configured to remotely communicate with the motorized clasping mechanism, wherein the electronic drive unit sends control signals to drive the motorized clasping mechanism to selectively move in the first direction and the direction. The tool further comprising an arm member for positioning the motorized clasping mechanism in a desired configuration to engage the light bulb, wherein the arm member is coupled to the motorized clasping mechanism. The motorized clasping mechanism further comprises a rotator mechanism configured to rotate the motorized clasping mechanism in the first direction about the axis.

Abstract: A device for the extraction of the base of a broken light bulb from the socket without further breakage of any remaining glass or deformation of the bulb base member or the socket. A hollow elongated conical cylinder with a series of slots or slits at the apex of the cone is inserted into a light bulb base. A threaded cylindrical rod is screwed into threads inside the conical cylinder, causing the apex of the cone to expand and engage the inside of the light bulb base. When securely engaged, the entire device is turned to cause the light bulb base to be come disengaged from the light socket.

Abstract: A light bulb changing tool comprising a motorized clasping mechanism configured to engage a light bulb, the motorized clasping mechanism configured along an axis, the motorized clasping mechanism configured to actuate in a first direction and a second direction; and a electronic drive unit configured to remotely communicate with the motorized clasping mechanism, wherein the electronic drive unit sends control signals to drive the motorized clasping mechanism to selectively move in the first direction and the direction. The tool further comprising an arm member for positioning the motorized clasping mechanism in a desired configuration to engage the light bulb, wherein the arm member is coupled to the motorized clasping mechanism. The motorized clasping mechanism further comprises a rotator mechanism configured to rotate the motorized clasping mechanism in the first direction about the axis.

Abstract: A device for removing a hollow base of a broken light bulb utilizing a member terminating in an end surface which is capable of extending into the hollow base of a bulb. The member also includes a portion capable of receiving an applied torsional force. An adhesive band is fixed to the outer surface of the member. The adhesive band bonds with the hollow base of the broken light bulb to permit removal of the same via the torsional force.

Abstract: A device for changing a light bulb comprising an outer tube and an inner tube positioned inside the outer tube, wherein the tubes are adjustable along a longitudinal axis. The inner tube having a rotating member which is rotatable about the longitudinal axis by a grip attached to the inner tube. The device comprising a flexible arm with a flex cable running through the arm, wherein the arm is connected to the outer tube. The flex cable in the flexible arm rotates in agreement with the rotating member by means of a transferring mechanism and drives a clasping mechanism comprising a plurality of spring urged fingers. The spring urged fingers are adjustable to clasp different sized light bulbs by an sliding collar coupled to the clasping mechanism. The device also comprises a locking mechanism for allowing or preventing the outer tube and the inner tube from sliding relative to each other at any position.

Abstract: A light bulb changing tool comprising a motorized clasping mechanism configured to engage a light bulb, the motorized clasping mechanism configured along an axis, the motorized clasping mechanism configured to actuate in a first direction and a second direction; and a electronic drive unit configured to remotely communicate with the motorized clasping mechanism, wherein the electronic drive unit sends control signals to drive the motorized clasping mechanism to selectively move in the first direction and the direction. The tool further comprising an arm member for positioning the motorized clasping mechanism in a desired configuration to engage the light bulb, wherein the arm member is coupled to the motorized clasping mechanism. The motorized clasping mechanism further comprises a rotator mechanism configured to rotate the motorized clasping mechanism in the first direction about the axis.

Abstract: A damaged light bulb base extractor has a generally cylindrical, resilient, expandable base-engaging member mounted on a handle member. With the base-engaging member sandwiched between compression plates, relative movement of the compression plates toward each other compresses and expands the base-engaging member diametrically to engage and grip the interior sidewall of a light bulb base for extraction from a socket. Relative movement of the compression plates away from each other permits the base-engaging member to return to its initial unexpanded state for removal from a light bulb base. Extendable ribs on the external sidewall surface of an expandable base-engaging member can be used as a sole means of expanding the diameter of a base-engaging member or in conjunction with the compression plates to expand the diameter of the base-engaging member.

Abstract: A light bulb changing tool comprising a motorized clasping mechanism configured to engage a light bulb, the motorized clasping mechanism configured along an axis, the motorized clasping mechanism configured to actuate in a first direction and a second direction; and a electronic drive unit configured to remotely communicate with the motorized clasping mechanism, wherein the electronic drive unit sends control signals to drive the motorized clasping mechanism to selectively move in the first direction and the direction. The tool further comprising an arm member for positioning the motorized clasping mechanism in a desired configuration to engage the light bulb, wherein the arm member is coupled to the motorized clasping mechanism. The motorized clasping mechanism further comprises a rotator mechanism configured to rotate the motorized clasping mechanism in the first direction about the axis.

Abstract: A device including adjustably opposing jaws for grasping a lighting tube for insertion into or removal from a lighting fixture. The device includes a handle having a head bracket attached to or formed at a first end of the handle. The head bracket supports adjustably opposing jaws including a first jaw pivotally attached to the head bracket and a second jaw hingedly attached to the first jaw and thereby pivotably attached to the head bracket. A control rod is connected to the first and second jaws and may be used for rotation or pivotal movement of the opposing jaws relative to the head bracket by pushing or pulling the control rod, and adjustment of the distance between the faces of the opposing first and second jaws by rotation of the control rod about its longitudinal axis.

Abstract: A tool for extending the reach of a person is provided. The tool includes an elongate arm having a proximal extremity and a distal extremity. The tool includes a jaws assembly attached to the arm's distal extremity, and a controller assembly attached to the arm's proximal extremity. The jaws assembly includes a plurality of rotating jaws which are capable of being controllably forced inward or outward for grappling and releasing objects. The controller assembly includes a rotating handle having a lever. Rotation of the handle causes the jaws assembly to rotate. Meanwhile, manipulation of the lever causes the jaws to be forced inward or outward.

Abstract: A tool for extracting a glow plug includes an externally threaded shaft, an internally threaded sleeve that engages the externally threaded shaft, and a fixed cavity formed in one end of the externally threaded shaft. The cavity has a side entry to permit the insertion of the glow plug into the cavity in a direction normal to the shaft, and a pair of opposing shoulders integrally formed in opposing sidewalls of the cavity to engage the glow plug. The sleeve threads down the shaft until it contacts the engine block. Rotating the sleeve exerts a pulling force on the shaft, which is transferred to the inserted glow plug by the opposing shoulders in the cavity. This pulls both the shaft and the inserted glow plug away from the engine block.