Abstract: A sublimation donor has a first fabric enhancer that sublimates from the donor above a first temperature and follow by a second fabric enhancer that sublimates from the donor above a second temperature. Both the first and second temperatures used are above 260° F. and the second temperature is at least 10° F. higher than the first temperature. Upon sublimation under a single pass processing unit, first and second catalysts triggers the first and second fabric enhancers to sublimate at the first and second temperatures, respectively.

Abstract: A wearable shoe tree is provided to be inserted within the interior of various types of shoes, thereby helping maintain the original shape of the shoe and preventing the front area (or toe box area), side walls, and heal from creasing and wrinkling over time. The wearable shoe tree can be comfortably worn and keeps the shape of a shoe whether the shoe is being worn or not. In addition to maintaining the shape and aesthetics of the shoe, the can also be used as an aid to athletic shoe customization. Modifications can be made to the shoe tree to allow it to be permanently affixed into the shoe or to allow it to be used by handicapped individuals for aesthetic purposes.

Abstract: It is provided a connecting portion for a boarding bridge that eliminates the level difference between the doorway portion of the aircraft and the passage, reduces the anxiety of the passengers, and can be raised and lowered smoothly.

Abstract: A bridge approach, abutment construction and road widening technique and method using tilt-up panels and lightweight concrete fill is disclosed. A bridge approach ramp is constructed using tilt-up panels, initially supported using tilt form braces, to from a retaining wall perimeter, and subsequently filling the interior with sequential pours of lightweight concrete. The present invention advances the art of bridge construction by providing an improved bridge approach structure that is capable of rapid construction and provides an improved and cost effective structure as compared with prior art teachings.

Abstract: A powered sweeper includes a housing, a brushroll chamber disposed in the housing, a brushroll mounted in a brushroll chamber, a dirt chamber disposed in the housing, a drive motor disposed in the housing, and a driven wheel operatively connected to the drive motor. The brushroll rotates in the brushroll chamber and the dirt chamber communicates with the brushroll chamber such that debris is propelled by the brushroll into the dirt chamber.

Abstract: A system for cleaning windows in tall buildings, comprises a chassis (7) with means for its mounting on a suspended platform. (3) It also includes a rotating conveyor belt (61) mounted on the chassis and brushes (62) mounted on the conveyor belt. Each brush is mounted through extender means (63). Preferably, the conveyor belt includes means for its rotation in a generally horizontal direction. The means for rotating the conveyor belt include a first roller (71) and a second roller (72) mounted on the chassis. The conveyor belt is preferably mounted between the rollers and further includes motor means for rotating one of the rollers.

Abstract: The invention is directed to a method and a device for cleaning teeth wherein a variety of cleaning tools are coupled to a common handle section for the individual cleaning of teeth. It relates in particular to a handle section of an electric dental cleaning device, with a coupling section for coupling various cleaning tools thereto, as well as said cleaning tools. According to the invention the handle section detects a coding provided on the respective cleaning tool attached. In dependence upon the respective coding detected, various functions of the dental cleaning device are controlled.

Abstract: The invention is directed to a toothbrush head of an electric toothbrush, which comprises a handpiece equipped with a drive, a brush head carrier that is connectible to the handpiece, and several bristle supports that carry a respective bristle set, are movably mounted on the brush head carrier and drivable in an oscillatory manner by the drive, each of the bristle supports being adapted to be coupled to a translator element of the drive by means of a respective drive coupling. According to the invention the bristle supports each have drive coupling means enabling them to be coupled to eccentric drivers of the drive translator element which is adapted to be driven for rotation about a longitudinal axis. Owing to the arrangement of two separately mounted bristle supports which are driven by a common drive translator element about various axes of motion, it is possible to achieve an improved cleaning effect by simple means.

Abstract: An apparatus for material handling that is connected to a prime mover and preferably located forward of the mover, includes a plurality of rotary brushes with each of the rotary brushes being independently suspended and having their axes substantially normal to a surface and rotating in the same direction. The rotary brushes, when moving along the surface, tend to cause any material on the surface to be moved from one brush to another brush until the material on the surface is delivered to one side of the apparatus.

Abstract: A vibration control unit inputs an electrical signal to a vibrating member to generate, in a light-transmitting region of a dust-screening member, vibration forming a plurality of ridges of peaks defining a closed loop around a virtual intersection at which a virtual vibrational axis passing the half-length point of the vibrating member intersects with a virtual vibrational axis passing the half-length point of the dust-screening member. For example, the vibration is vibration whose peak including the virtual intersection gradually increases in terms of amplitude as the amplitude of the peak approaches the virtual intersection, and becomes the largest in terms of amplitude at the virtual intersection. The dust-screening member and the vibrating member have the following relation: 1.2?Ts/Tg?1.6, where Tg is the thickness of the thickness of the dust-screening member, and Ts is the thickness of the vibrating member.

Abstract: The present invention is a device for use in cleaning a fabric surface of dust, dirt, pet hair, and other debris present on the surface. The device includes a housing, a cleaning member, such as a roller, and a pair of cleaning material sections on opposite sides of the roller. The cleaning member has a protrusion that selectively engages one of a pair of stops to prevent rotation of the cleaning member past a respective stop.

Abstract: The present invention relates to a toothbrush having a bristle support head having a plurality of bristles densely implanted thereon and a brushing surface formed by ends of the bristles. The contact area between the bristle support head and teeth can be increased by virtue of the brushing surface. Reciprocal motion of the bristle support head maintains contact between the bristles and teeth so removes contaminants from inter-tooth spaces effectively and with improved efficiency.

Abstract: An oral hygiene implement comprising having a handle, head, and a neck extending between the handle and the head is described. The head has a plurality of cleaning elements and/or massaging elements attached to the head. The oral hygiene implement also has a force sensor and an output source. The output source provides a plurality of output signals which correspond to a plurality of conditions to a user.

Abstract: The object of the invention is a wiper blade (10) with a wiper strip (12), in the lateral longitudinal grooves (20) of which spring rails (24) are inserted as springy supporting elements. The ends of the spring rails (24) are connected with one another by a bridge (32, 54, 62, 76) in that side parts (36, 66, 80) of the bridge (32, 54, 62, 76) are supported at the upper side of the spring rail (24) and engage recesses (28, 30) of the spring rails (24), whereas a middle part (34, 64, 78) of the bridge (32, 54, 62, 76) bridges a back strip (22) of the wiper strip (12), which forms the upper boundary of the longitudinal grooves (20). It is proposed that the spring rails (24), at their front faces, have short slots (28), which extend in the longitudinal direction of the spring rails (24) and which are engaged by the I-shaped angle pieces (38, 56) of the bridge (52, 54). Lower legs (40, 58) of the angle pieces (38, 56) are directed towards the middle of the spring rails (24), gripping these from below.

Abstract: The present invention relates to a coating for elastomeric linear profiles, where the coating comprises solid lubricant embedded into a polymeric matrix. It also relates to a wiper blade for windscreen wipers, comprising this type of coating, and also to a process for the production of an elastomeric linear profile coated according to the invention. The polymeric matrix with embedded solid lubricant is obtained by polymerizing, in the absence of polymeric binders, a mixture comprising the solid lubricant and low-molecular-weight crosslinking agent. In one embodiment, the matrix is obtained from the thermal polymerization of the low-molecular-weight crosslinking agent hexamethoxymethylmelamine. Examples of solid lubricants are graphite and HDPE.

Abstract: A hose and accessory holder for an upright vacuum cleaner comprises a tool fixing portion having accessory tools insertable thereinto, a hose fixing portion for attachably/detachably fixing a hose thereto, and a holder fastening portion for attachably/detachably fastening the holder to a vacuum cleaner body. The tool fixing portion further comprises fitting members respectively formed in the insertion directions of the accessory tools on inner circumferential surfaces of the tool fixing portion, and protruding inwardly from the tool fixing portion.

Abstract: A vacuum cleaner having a vacuum cleaner body with a cord outlet is provided. A power cord may be extracted from or retracted into the vacuum cleaner body through the cord outlet, and a plug is provided at an end of the power cord. A stopper is formed at a position spaced from the end of the power cord at a predetermined distance, and a socket portion is provided at the vacuum cleaner body so that the plug may be inserted into the socket portion when cleaning is finished.

Abstract: The present invention relates to a vacuum cleaner filter bag comprising an inlet opening, a retaining plate, which is situated on the exterior of the bag in the vicinity of the inlet opening and can be attached to a retaining device of a vacuum cleaner in order to fix the vacuum cleaner filter bag, and a closing device situated in the vicinity of the inlet opening, which is configured in such a way that it adopts a first position when the retaining plate is not attached to the retaining device and a second position by the attachment of the retaining plate to the retaining device, wherein the inlet opening is closed in the first position of the closing device and is open in the second position of the closing device.

Abstract: A cyclone separator for a vacuum cleaner. The separator has a cyclone chamber, an air entrance device having a flow passage arrangement therethrough for introducing an air stream into the cyclone chamber in a manner that causes the air stream to swirl in the cyclone chamber to remove dust from the air stream, and an air outlet for emitting the air stream from the cyclone chamber. The entrance device has a control member that is operable to alter the flow passage arrangement such that one or more properties of the air stream in the cyclone chamber are affected by the alteration. The flow passage arrangement has a first path and a second path, and the control member is operable to alter the flow passage arrangement by redirecting the air stream from the first path to the second path.

Abstract: The invention refers to a driving device for taking away filling material and particles soiling the filling material from a surface, in particular a sports field, preferably from an artificial lawn field. The driving device has a taking away device which removes the filling material and the particles from the field and puts it in the driving device, as well as a suction device with a filter element for separating particles from a suction air flow. The invention is characterised in that the filter element is self-cleaning.

Abstract: A ring assembly for a curtain includes a first ring and a second ring located on two sides of the curtain sheet and the first ring has a first hole and multiple protrusions extend from a side of the first ring. The second ring has a second hole and multiple engaging slots are defined through the second ring. Each engaging slot includes a reception port and at least one restriction port which communicates with the reception port. A neck path is defined between the reception port and the at least one restriction port. The protrusions extend through the curtain sheet and into the reception ports of the second rings and the second rings are rotated to force the protrusions to pass through the neck path and be engaged with the at least one restriction port.

Abstract: A remote control has lower and upper casings. A sliding hinge has a main bracket attached to the lower casing, a sliding bracket attached to the upper casing, two positioning assemblies mounted between the main bracket and the sliding bracket, multiple fasteners mounted through the sliding bracket, the positioning assemblies and elongated slots of the main bracket and two resilient components connected to the main bracket and the fasteners. The resilient components push the sliding bracket and selectively retain the sliding bracket securely at opposite ends of the elongated slots of the main bracket. The lower and the upper casings of the remote control do not collide with each other or with the main and the sliding brackets and therefore prevent localized wear.

Abstract: A hinge assembly includes a first pivot unit including a shaft, a bracket, an engaging member, a locking member, and an elastic member. The shaft has a non-circular sleeve portion. The bracket is rotatably sleeved on the shaft. The engaging member has a sleeving hole with a shape substantially corresponding to a cross-section of the sleeve portion of the shaft. The locking member has a sleeving hole with a shape substantially corresponding to a cross-section of the sleeve portion of the shaft. The locking member is non-rotatably latched to the engaging member. The elastic member is sleeved on the shaft to resist the components on the shaft.

Abstract: There is described a vehicle braking assembly for a wheel which comprises a braking member arranged to move relative to the main body of the wheel between an inoperative and an operative position, blocking means adapted to prevent the braking member from moving to an operative position wherein the trigger means is operable by coded message passed by a separate transmitter as electromagnetic radiation and the assembly is provided with an EMR sensor.

Abstract: A selective compliance hinge, apt to define a turning pair with a default axis of rotation (A), allows to obtain a selective compliance turning pair, hence with the advantages typical of such applications but providing the best precision and movement repeatability, and comprises a connecting element (3) compliant between a first and a second body (1, 2), and characterized by that each of said bodies (1, 2) has a first and a second extension (11, 21), respectively, said extensions (11, 21) comprising respective surfaces (111, 211) conjugate therebetween, so that said surfaces (111, 211) slide one relative the other remaining adjacent therebetween and defining a rotary motion taking place substantially about said default axis of rotation (A).

Abstract: Handle for vehicles, which comprises a lever (5) which is pivoted for rotating around a first axis (7) in a frame (1) and is mechanically connected to a rocker (11; 111) which rotates around a second axis (12) when the lever (5) rotates, wherein a counterweight (28; 128) is pivoted to the frame (1) and is mechanically connected to the lever (5) for balancing the lever (5) and rotating around a third axis (30) when the lever (5) rotates.

Abstract: An apparatus to secure towels and the like with a flexible strap or cord of a length sized to go at least partially around the neck of the wearer, with left and right fasteners secured to the strap at its terminals for fastening a towel or other drape in use position, the strap or cord is adjustable by a mechanism that adjusts the length of the strap to the preference of the wearer, preferably, the fasteners are oriented such that, when the holder is in use the fixed portion of the clip, which is attached to the strap, lies facing away from the wearers body so that any decorative material present is visible to an observer, and attached to both fasteners on the side facing the wearer is a magnet to support the apparatus when attached to a magnetic surface,

Abstract: A cord lock for window coverings has one or more cams adjacent a locking surface over which a one or more lift cords travel. The cams may be spring biased to a locked position in which they press the lift cords against the surface. A release member through which the lift cords pass is provided. Transverse movement of any cord passing through an opening in the release member moves the release member from a first position, in which the cam or cams are in the locked position, to a second position at which a cam engaging portion of the release member engages the cam and the cam is in the unlocked position. Movement of the release member from the first position to the second position maintains the cam in the unlocked position.

Abstract: The invention relates to a connection assembly, comprising two connecting modules each with a load housing with a locking device with a spring locking element and a latch piece, a magnet and armature construction and a movement track, on which the latch piece can be moved from a closed position to an open position, the locking device, the magnet and armature construction and the movement track cooperating by means of an opening, the connecting modules are moved on the movement track, wherein the magnet and armature are moved in opposition and the latch piece and the spring locking element are moved in opposition, until the spring locking element is no longer engaged. On closing, the connecting module locks in with the aid of magnetic force. The position of the load housing and the position and form of the movement track are designed such that on moving the connecting module the loading housings move together by an amount ?x against the load FL.

Abstract: A buckle assembly configured to mate with a plurality of tongues may include a rotational lever; a latch plate supported by the rotational lever and configured to move in a vertical direction when the lever rotates; a plurality of latch pins, wherein each latch pin is configured to engage the latch plate at one end of the pin and one of the plurality of tongues at the other end of the pin in order to mate the tongue with the buckle assembly; and a rotational solenoid. A core of the rotational solenoid may be connected to the rotational lever, so that rotation of the core causes the lever to rotate and the latch plate to move in a vertical direction. Each of the latch pins is configured to disengage from the corresponding tongue when the lever rotates.

Abstract: A fastener stringer capable of following up stretching/contracting action of a stretchable fabric smoothly by improving a stretching property of an element attaching portion, and capable of preventing breaking of chain if the element attaching portion is stretched, wherein the fastener stringer includes: a woven fastener tape having a tape main portion and an element attaching portion; a continuous fastener element row sewed to the element attaching portion with a non-elastic sewing thread; and an elastic core thread inserted through an interior of the fastener element row, an elastic yarn and a non-elastic yarn are woven into the tape main portion and the element attaching portion as warp yarns while a non-elastic yarn is woven as a weft yarn, and a weaving ratio of the elastic yarn to the non-elastic yarn is larger in the element attaching portion than in the tape main portion.

Abstract: A fixturing apparatus 100, comprising a first fixturing surface 230, and a plurality of locking teeth 210 attached to and extending outwardly from that fixturing surface, wherein each locking tooth comprises a parallelepiped comprising a rectangular base 310, a first rectangular side 320 attached to a first end of that rectangular base and extending outwardly therefrom, and a second rectangular side 330 attached to an opposing end of the rectangular base and extending outwardly therefrom, wherein a first rectangular side distal end 324 is attached to a second rectangular side distal end 336.

Abstract: A snap hook includes a hook member having a gap formed by an attaching end and a receiving end, a pivotal gate pivotally secured to the hook member and having a channel for receiving the receiving end of the hook member, a locking member is rotatably engaged onto the pivotal gate and includes a passage for aligning with the channel of the pivotal gate and the receiving end of the hook member and for allowing the pivotal gate and the locking member to be rotated relative to the hook member from the locking position to the unlocking position, and a spring member biases and rotates the locking member relative to the pivotal gate to stably retain the receiving end of the hook member in the channel of the pivotal gate.

Abstract: A shoelace substitute approximates the look and function of a shoelace and includes a length of elastic material and two barbs. The barbs are each placed at and contain one of the ends of the elastic material, being crimped around the end of the elastic material to form a T. The barbs are sized to be inserted through eyelets of the shoe to connect opposite eyelets in the same manner as a shoelace. An associated method allows for replacement of the shoelace with a number of such shoelace substitutes, each connecting a pair of eyelets. The color and shape of the elastic material may be varied to coordinate with various kinds of shoes. The effect is to create a “slip-on” shoe from a “lace-up” shoe.

Abstract: A method is used to prepare a body for burial. The method includes placing the body inside a vessel. The body includes bones and tissue. The method further includes subjecting the body to a flow of steam until the bones are free of tissue. In one implementation, the flow of steam has a temperature of about 212 degrees Fahrenheit and a mass flow rate of at least 1000 pounds per hour. The method may further include removing the bones from the vessel.

Abstract: Disclosed is a method for manufacturing bulletproof fabric, the method comprising weaving fabric; scouring the fabric; applying a pretreatment process to the scoured fabric; and applying a water-repellent process to the pretreated fabric, wherein the pretreatment process comprises adjusting a moisture regain of the scoured fabric. In this method, the fabric is treated with the pretreatment process before the water-repellent process, so that it is possible to maintain the constant concentration of water-repellent composition, and to permeate the water-repellent agent into the fabric with easiness, thereby producing the bulletproof fabric with the uniform and good water-repellent property. Thus, even though the bulletproof fabric is used for a long period of time, it is possible to prevent deterioration of the bulletproof property in the fabric.

Abstract: A method for providing a disc of a bladed rotor for use in a gas turbine engine including the steps of determining the location of blade fixing slots to be formed on the disc to receive the roots of respective blades, determining a virtual profile of each slot on the disc, and forming, prior to the slots being formed in the disc, a narrow, axial pilot slot centrally of the virtual profile of each slot.

Abstract: A method for fabricating a capacitor includes forming an etch stop layer, a first isolating insulation layer, and a floating layer over a substrate including storage node contact plugs to form a resulting substrate structure; etching the floating layer, the first isolating insulation layer, and the etch stop layer to form a plurality of open regions; forming a conductive layer over the substrate structure; forming a second isolating insulation layer over the conductive layer, the second isolating insulation layer filling upper portions of the open regions; etching portions of the remaining floating layer to form a floating pattern; performing a storage node isolation process in a manner that the floating pattern is exposed to form a plurality of storage nodes having sidewalls supported by the floating pattern; and removing the etched first isolating insulation layer.

Abstract: In a method for polarizing a piezoceramic material, first, a base is provided that is made of non-polarized piezoceramic material and has at least two opposite planar electrodes and at least one predetermined breaking point because of which a stress relief fracture forms when a voltage having a first voltage value is applied. A number of voltage pulses, the amplitudes of which follow a time-related envelope curve, is applied to the electrodes of the base. The amplitudes of the voltage pulses in a first section of the envelope curve are higher than the first voltage value, and the amplitudes of the voltage pulses in a second section of the envelope curve that follows the first section have a second voltage value which is sufficient to permanently polarize the piezoceramic material.

Abstract: Provided herein are composite passive layers for ultrasound transducers having acoustic properties that can be easily tailored to the needs of the transducer application using current microfabrication techniques. In an embodiment, a passive layer comprises metal posts embedded in a polymer matrix or other material. The acoustic properties of the passive layer depend on the metal/polymer volume fraction of the passive layer, which can be easily controlled using current microfabrication techniques, e.g., integrated circuit (IC) fabrication techniques. Further, the embedded metal posts provide electrical conduction through the passive layer allowing electrical connections to be made to an active element, e.g., piezoelectric element, of the transducer through the passive layer. Because the embedded metal posts conduct along one line of direction, they can be used to provide separate electrical connections to different active elements in a transducer array through the passive layer.

Abstract: A method and apparatus for installing a piston over a lip seal on a shaft includes a cylinder or primary force and a weight member or secondary force. The primary force and secondary force are coupled by a resilient member, which will permit the secondary force to retract from the assembly process when the force needed to complete the assembly is above a predetermined value.

Abstract: A prewinder apparatus attachable to a drive tool to install a helical coil insert includes a body connected to the drive tool. An adapter rotates and is releasably connected to the body at operator selected positions. A prewinder portion displaces in/out of the body. The prewinder portion translates into the body until a fastener engaged with the prewinder portion contacts a stop member defining a predetermined helical coil insert insertion depth. A mandrel axially extends from the prewinder portion when the prewinder portion moves into the body to rotatably insert the helical coil insert. A clutch engages/disengages the mandrel from a drive member. A second clutch or a stall device stalls the drive tool after coil insertion.

Abstract: A press-fit device includes a base plate, a jig base and a robot mounted on the base plate, a press-fit unit mounted at a portion of the robot, a supporting plate mounted on the jig base, and a supporting block mounted to a side portion of the connecting frame. The supporting plate and block can support repulsive force that can be generated when the press-fit component is press-fitted to the press-fit object.

Abstract: A method for providing weld inlays and onlays to primary nozzles of a nuclear reactor comprising: providing a first welding device in a first primary nozzle of the nuclear reactor; providing a second welding device in a second primary nozzle of the nuclear reactor; providing a third welding device in a third primary nozzle of the nuclear reactor; and operating the first, second and third welding devices at the same time. Other methods are also provided.

Abstract: A mounting condition determining method including: obtaining mounting information including information related to component mounting operations scheduled to be performed by a mounter (S1); judging, using the mounting information obtained in the obtaining: which production mode between a synchronous mode and an asynchronous mode is suitable for the scheduled component mounting operations; or which production mode between an alternating mode and an independent mode is suitable for the scheduled component mounting operations (S2, S3); and selecting the production mode indicated by a result of the judgment in the judging, as the production mode to be executed by the mounter (S5, S6).

Abstract: Methods and devices related to multi-layer tubular conduit are disclosed. The method of making the multi-layer tubular conduit includes providing a hermetically sealed metal tube, inserting a thermoplastic conduit within the tube, and surrounding the exterior of the tube with an overjacket. The multi-layer tubular conduit device includes three layers: a layer of thermaplastic conduit, a layer of hermetically sealed metal tube, and a layer of overjacket. The three layers are arranged coaxially such that they share a common central axis. The method of use includes installing a multi-layer tubular conduit device in a public or non-public environment. The multi-layer tubular conduit offers mechanical protection from harsh and/or hostile environments while still offering the flexibility of traditional conduit.

Abstract: A method of mounting a grate adapter unit beneath a stormwater collection grate includes steps of providing a grate adapter unit having a plurality of outwardly extending mounting flanges, each mounting flange being adapted to fit a different size commercially common stormwater collection grate. The grate adapter unit is trimmed, either at the factory, at the contractor's facilities or at the installation site, at the desired location to select a desired one of the mounting flanges that is appropriate for the collection grate to which the grate adapter is being fit. The grate adapter unit is then mounted beneath the stormwater collection grate using the selected mounting flange. A stormwater remediation unit may be pre-mounted to a lower end of the grate adapter unit or mounted to the lower end after installation.

Abstract: A method for orienting a surface sensing device (SSD) uses an apparatus having a support attachable to a moveable arm of a machine, such as a coordinate measuring apparatus. The support includes a first member rotatable about a first axis of rotation and a SSD for sensing the surface of a workpiece; the SSD is releasably connectable to the first member for rotation therewith. The method includes the steps of disconnecting a SSD from a support, the SSD being connected to the support in a first orientation; rotating one of the SSD and the support relative to the other of the SSD and the support and reconnecting the SSD and the support into a second orientation. An apparatus for orienting a surface sensing device is further described.

Abstract: Some embodiments of an infusion pump system may include a construction that is resistant to external contaminants, such as precipitation, water splashes, sweat and the like. In particular embodiments, the infusion pump system can include a pump device that is removably attached to a controller device to provide an electrical connection therebetween. In such circumstances, the infusion pump system can be assembled as a sealed construction that protects the electrical connection between the pump device and the removable controller device.

Abstract: A tool to install a pipe into a manhole includes: an expansion band adapted to be inserted inside the boot; a bracket connected to the expansion band; an expansion link, adapted to urge the expansion band to expand; a removable bolt to releasably connect the expansion link to the bracket; and a nut to releasably retain the bolt to the expansion link and the bracket. The expansion link urges expansion of the expansion band so that the pipe may be installed into the rubber boot on a manhole, and then the nut and bolt are removed, thereby releasing the tool from the manhole.