Abstract: An arrangement comprises bottle-shaped containers (3) containing various substances for construction and coloring of dental components. The containers are arranged in sector-shaped units which comprise containers with substances belonging to an allocated group of shades. The containers/substances in each respective group are further divided into user categories. Containers/substance related to a first use are placed outermost in the sector-shaped unit, a second user category is placed to the inside of the first user category, and so on. The novel arrangement enhances the efficiency of use of commercially available substances for construction of said products. Several users can use the arrangement simultaneously. The novel arrangement permits natural reproduction of the products in question.

Abstract: A conducting system for a fuel tank filling pipe, including a filling bowl made of a conducting plastic, a filling nozzle guide, also made of a conducting plastic, provided with deformable teeth, and in direct contact with the filling bowl, and a metal head. The bowl and the guide are inserted into the metal head such that the teeth are in permanent radial contact with the metal head when the bowl and the guide are mounted in the filling pipe.

Abstract: The present invention discloses a small sized and high-pressurized container for preventing explosion. According to the preferred embodiment of the present invention, a can body has a shape of cylinder for containing high-pressurized product therein. An upper body, which has a dome-like shape, is connected to the top of the can body by seaming or welding, and comprises a groove around its lower part. A valve is mounted on the top of upper body, and discharges high-pressurized gases or liquids, which exists in the inside of the container. A plurality of scores is configured at the bottom of the groove of the upper body, in order to discharge an overpressurized product and prevent bursting or explosion of the container. The scores weaken the resistance of the upper body, so in the event of that a certain internal overpressure is applied, the upper body firstly deforms outwardly and then one or more scores are fractured, and lastly the overpressurized product is discharged from the scores.

Abstract: A trash container includes a base, a liner supported by the base to receive and store trash, a body, supported by the base, configured to house the liner, a lid hingedly mounted to the body and a pedal. A link assembly is operably connected to the pedal and the lid to translate an up-down pivot motion of the pedal to an up-down pivot motion for the lid. The link assembly includes a lift bar and at least one first arm. The link assembly provides a direct rigid connection between the pedal and the lid. At least one damper assembly is operably connected to the link assembly for dampening opening and closing motions of the lid. The at least one damper assembly includes a damper and a second arm moveably connected to the damper and the at least one first arm.

Abstract: A wood chip soaking apparatus has a fluid holding base container having end walls suited for supporting at least one, and suitably two, or even more, wood chip baskets in the container for pre-soaking the wood chips to be added to a barbeque heat source. Wood chips are preferably supported in the base container on handles projecting from the wood chip baskets. The base container preferably is provided with elevated side walls for supporting the wood chip baskets in an elevated position after soaking for draining the fluid from the baskets.

Abstract: A container for holding multiple articles of manufacture which includes at least one storage area for holding the multiple articles of manufacture, a first cover portion operatively associated with a second cover portion wherein the first and second cover portions are adapted to reversibly enclose the at least one storage area therebetween; and a locking mechanism for releasably securing the first and second cover portions together to block access to the at least one storage area.

Abstract: A container includes multiple compartments for holding drinks and food. In an exemplary embodiment, a first compartment holds a drink of choice, such as soda, water or juice, and a second compartment holds a food of choice, such as popcorn, pretzels or chips. A third compartment may also be provided for holding a second food of choice, such as candy.

Abstract: Replaceable tank (RT) for installing in metallic storage tanks for fluids consists of a tank body and one or more orificial members. The RT conforms with inner walls of the storage tank and is made of flexible materials, such as rubber or PVC that are impermeable to the fluids stored. Orificial members having a tubular neck and conforming with the lumen of the orifices of the storage tank are typically made of the same material as the RT. Magnets, attached to, or embedded in, the walls of the RT are attracted to the walls of the metallic storage tank. A method for manufacturing, packaging and for in situ installing an RT is provided.

Abstract: An automotive fuel tank storage system includes a fuel storage tank installed in a vehicle and a barrier fluid tank containing a supply of barrier fluid. A distribution system connected with the barrier fluid tank and with the fuel storage tank distributes barrier fluid about the outer periphery of the fuel contained within the storage tank in the event of a collision event, creating a boundary layer of more viscous fluid which inhibits exfiltration of the fuel from the fuel storage tank.

Abstract: A modular fluid containment system formed of a plurality of fluid containment units and interconnecting channels. The containment units and channels may be comprised of panel units made of flexible non-porous material. The system includes brace members along selected edges of the containment units and panel units which are operative between an operative position in which the edges of the flexible material forming the containment units and panel units are held in an upright position forming side walls defining a containment or channel area and an inoperative position in which the flexible material is allowed to lie along a single plane in flat or folded condition. Connectors are provided along selected edges of the panel units to interconnect the panel units into desired configurations forming the containment system of desired shape and size.

Abstract: A foldable or collapsible stovetop container that maintains a rigid shape while in use and can be folded into a smaller size for storage. The stovetop container includes rigid top and bottom portions separated by a flexible middle portion. The flexible middle portion includes thin wall sections that form predetermined bend areas. Pressure applied to the top portion causes the flexible middle portion to collapse in an orderly manner toward the bottom portion, with the middle portion folding at each of the predetermined bend areas to create one or more folds or pleats in the middle portion in the collapsed configuration. The foldable stovetop container may be used on residential stovetops for the heating and cooking of food.

Abstract: A portable thermally-controlled container system includes an outer case providing a first inner chamber and configured to have an open position and a closed position, when in the open position the outer case is configured to receive items into the first inner chamber and when in the closed position the outer case is configured to inhibit heat transfer between the first inner chamber and a region external to the outer case, and an inner case configured to fit in the chamber provided by the outer case, the inner case including a first thermally-reflective layer and a first insulation layer disposed inwardly of the first thermally-reflective layer, the inner case providing a second inner chamber disposed inwardly of the first insulation layer.

Abstract: A beverage container (10) is disclosed as including a body (12) with a top end and a cooling device (20) detachably engageable with the body (12), in which the body (12) is adapted to hold a beverage, and the cooling device (20) is adapted to contain a cooling agent, e.g. water and when the cooling device (20) is engaged with the body (12), at least a major portion of the top end of the body (12) is closed and at least part of the cooling device (20) extends into an interior cavity of the body (12), and the cooling device (20) includes a vessel (22) and a top (24) removably engageable with each other. A method of using such a beverage container is also disclosed.

Abstract: A holder apparatus for a portable device including a first surface with a first area with at least one magnetized polarity and a second area with at least one magnetized polarity, and a second surface with a first area of at least one magnetized polarity and a second area with at least one other magnetized area with a second polarity. The first surface is removably attached to one or more portable devices and/or instruments. The magnetic polarities of the first surface and the magnetic polarities of the second surface are aligned with their corresponding opposite magnetic poles so that said one or more attached portable devices are orientated in a specific direction relative to the first surface and/or the second surface, with either or both of the surfaces attached to one or more substrates.

Abstract: The present invention refers to a multi-layered package, and particularly to a container comprising a container opening and a container bottom. Preferably, at least one outer wall comprises a predetermined removable wall section, revealing an information. The feature of the package according to the present invention is that the package is formed with at least one inner wall and one outer wall. Thereby, the wall section is as part of the outer wall a removable card.

Abstract: Insulated jackets for beverage containers are disclosed having a seamless, fabric-covered, finished upper edge. The insulated jackets disclosed also comprise a partially of fully fabric-covered interior surface. Also disclosed are blanks for forming the disclosed insulated jackets for beverage containers.

Abstract: An insulating holder for a hot or cold drink cup including a tubular sleeve member that is made of a cellulosic paper material and has top and bottom circular openings that enable the sleeve member to be fitted over the liquid container. The tubular sleeve member has its top and bottom openings sized so as to form a frusto-conic shape when fitted on the cup. The tubular sleeve member is provided with a plurality of folds that each extend in a direction between the top and bottom circular openings and that each extend substantially in parallel with an adjacently spaced fold. Each fold defines an air channel that is formed on an inner surface of the tubular sleeve member and that extends along each fold for providing insulation by virtue of the air passage between the holder and cup. The folds extend in a direction that includes a transverse component so as to inhibit compression by the user at the fold. The holder also includes microscopic air chambers which are used to absorb and retain moisture.

Abstract: A device for dispensing individual plastic fasteners from a continuous supply of 0.1875 inch pitch ladder stock includes a head assembly that is designed to receive the supply of ladder stock, sever an individual fastener from the supply ladder stock and eject the individual fastener during a single stroke of its actuation cycle. The device also includes a stepper motor for driving the head assembly through its actuation cycle, a DC power switching supply for regulating the power supplied to the stepper motor from an AC input power source, and a controller for collecting historical data relating to usage of the device and for regulating operation of the stepper motor. The controller is programmed to enable certain operational characteristics, such as stroke speed and mode, to be regulated through a user interface which includes a screen display and a plurality of control buttons.

Abstract: A drug storage and dispensing system including a container for containing the drug, a storage tray and a drug identification key. The storage tray includes a plurality of drug storage chambers each defined by a sidewall and configured to receive the container. The key member includes at least one projection and at least one opening configured to receive the at least one projection. The at least one projection is disposed on either the sidewall or the container. The at least one projection receiving member is formed in the other of the sidewall and the container. The at least one projection and at least one opening have configurations that corresponding to at least one feature of the drug. The at least one projection is received in the at least one opening when the container is received in the storage chamber.

Abstract: A drug storage and dispensing system including a container for containing the drug, a storage tray and a drug identification key. The storage tray includes a plurality of drug storage chambers each defined by a sidewall and configured to receive the container. The key member includes at least one projection and at least one opening configured to receive the at least one projection. The at least one projection is disposed on either the sidewall or the container. The at least one projection receiving member is formed in the other of the sidewall and the container. The at least one projection and at least one opening have configurations that corresponding to at least one feature of the drug. The at least one projection is received in the at least one opening when the container is received in the storage chamber.

Abstract: A vending machine automatically detects the size of a customer-selected container or cup placed in the dispensing area of the vending apparatus to receive a dispensed beverage. A plurality of sensors positioned proximate the container receiving area detects the container's size (e.g., small/large; small/medium/large). In response, the vending machine conveys or illuminates to the customer one or more of the available beverage selections (provided by the vending machine) indicating which of the beverage selections is available based on the detected cup size.

Abstract: Drug storage and dispensing devices for dispensing dosage forms to the oral mucosa of a patient are disclosed. The drug storage and dispensing device is a single dose applicator or a device which includes a means to retard or prevent saliva and/or moisture ingress such that the drug dosage forms in the device remain dry prior to administration.

Abstract: A self-stick flag dispenser includes a base having two engaging portions and two resilient members are engaged with the two engaging portions so that two ends of a stack of self-stick flags are camped between the resilient members and the base. The stack of flags includes a plurality of flags attached with each other and each flag has adhesive applied on a most portion of a bottom thereof except for a pull end of each flag having no adhesive applied thereto. The pull ends of adjacent flags are arranged alternatively to each other. When the pull end of the first flag is pulled upward, the pull end of the next flag is pulled upward by the first flag and escapes from the resilient member and is located above the resilient member.

Abstract: A combination toilet paper dispenser with replaceable fragrance comprises an upstanding elongated decorative container of suitable dimensions for storing a plurality of regular or jumbo size toilet paper rolls stacked one on another defined by a peripheral wall with a base portion at a bottom end, the peripheral wall and base portions are of the same color print with a pattern to coordinate with the container and cover portions and a removable decorative cover portion of the same dimensions is at an open top end of the elongated container to permit insertion and removal of toilet paper rolls. The cover portion comprises a void to hold a fragrance-emitting device with a releasable attachment to replace the fragrance-emitting device when dried out and when attached permits the attachments and the fragrance-emitting device to be hidden from view.

Abstract: A fastening system that enables a tab to be positioned around items to be joined, and a fastener to be passed through the tab and the items to be joined to fasten these. The invention relates to a fastening device for effecting the system, a magazine for storing and dispensing tabs and to the tabs.

Abstract: An article handling apparatus having a article storage area includes a movable article storage structure adapted for being positioned therein. The movable article storage structure comprises a bin segment guidance structure adapted for individually guiding groups of articles to be handled, i.e., article storage bin-segments which are preloaded with articles, so as to form therewith a plurality of axially aligned article storage columns. The guidance apparatus includes a receiving device which provides individual coupling to the article storage bin-segments, so as to allow grouping of the bin-segments into the plurality of axially aligned article storage columns. Once received, the segments are individually guided by the guidance apparatus from one end of the column, along the longitudinal axis of the column, in a direction toward an article grasping portion of the article handling apparatus which is adjacent an opposed end of the column.

Abstract: A dispensing mechanism is adapted to eject a test sensor from a cartridge opening formed in a cartridge containing test sensors. The dispensing mechanism comprises a gear rack, a gear, and a wheel. The gear rack includes a first portion and a second portion located generally parallel to one another. The second portion of the gear rack includes a first plurality of teeth. The gear includes a second plurality of teeth that are adapted to be engaged by the first plurality of teeth upon movement of the gear rack. The wheel is operatively engaged by the gear and is adapted to dispense the test sensor from the cartridge opening and to seal the cartridge opening. The movement of the gear rack in a first direction causes the gear to rotate causing the wheel to rotate. The rotation of the wheel dispenses the test sensor through the cartridge opening.

Abstract: To automatically eliminate the clogging with tablets before maintenance, the present invention provides a cassette body (14) including: a tablet cassette (12) which has, in a cassette main body (14) accommodating tablets, a rotor (13) rotatably provided and having a groove for holding a tablet, and in which a discharge port (19) for discharging the tablet held by the groove is formed in the cassette main body (14), with the cassette main body (14) being provided with a worm gear (23) in mesh with a gear (33, 22) fixed to a shaft of the rotor (13) protruding from a bottom of the cassette main body (14); and a carrying member (41) adapted to approach the tablet cassette (12) accommodating tablets to be extracted while holding a tablet container (9), and equipped with a drive shaft (50) to be engaged with the worm gear (23) to rotate the rotor (13) via the gear (33, 22). The worm gear (23) is provided so as to be movable in an axial direction thereof.

Abstract: A container (20) has a body (22) having a body opening (40). A spout fitment (24) is mounted within the body opening. A cap (26) has: a sidewall (120); a web (122) enclosing an upper end of the sidewall; a flange (124) extending outward from the sidewall; an external thread (132) along the sidewall below the flange; a removed condition disengaged from the body and spout fitment; and an installed condition threadingly mounted by the external thread to at least one of the body and spout fitment. In the installed condition, a perimeter portion (128) of the flange is below a rim (110) of the spout fitment.

Abstract: A ring designed to serve as a diner's personal napkin holder that serves also as the diner's personal salt and pepper dispenser. The ring is hollow and has two closed compartments intended to contain salt and pepper. Holes on the side of the ring enable to dispense the salt and the pepper during use.

Abstract: An apparatus, method and vending system mixes a dry mix with water to produce a whipped fluid slurry for a beverage. The mixing apparatus includes an inlet for receiving an unwhipped fluid slurry and an outlet for discharging the whipped fluid slurry. A whipping chamber is connected to the inlet for whipping the unwhipped fluid slurry and further includes an impeller that induces fluid turbulence to produce the whipped fluid slurry when the impeller rotates above one or more indentations in the surface of the whipping chamber.

Abstract: An aerosol valve actuator with a top portion rotatable on a bottom portion. The entire top portion in one rotatable position is depressible vertically to actuate the valve. A click post and clicking rib provide a single click in each direction of rotation. Flanges on top and bottom portions interact to stop rotation as soon as each click occurs. Plastic springs interact with spring biasing members only when the top portion is in actuating position, and assure return of the actuator top portion to full upward position for rotation after actuation of even a short-stemmed valve. Downwardly extending flexible connecting flanges connect the actuator top and bottom portions. The top portion has a lower periphery with a plurality of upwardly extending indentations to overlie lateral ribs in the lower portion in actuation position. The top and bottom portions have interfitting cylinders to stabilize the top portion and maintain verticality.

Abstract: A fluid dispenser comprising: a fluid reservoir (2) for containing fluid, the reservoir including an opening (230) having an outer top edge (25) and an inner bottom edge (26); a dispenser member (3), such as a pump or a valve; fastener means for fastening the dispenser member in the opening (230); the dispenser being characterized in that it further comprises tamperproofing means (1) that are distinct from the fastener means and that are secured to the dispenser member (3), the tamperproofing means coming into contact with the inner edge (26) in the event of an attempt at removing the dispenser member (3) from the opening (230).

Abstract: A fluid pump for a fuel dispensing unit comprises a pump housing with a first chamber and a second chamber, each chamber having a fluid inlet valve and a fluid outlet valve, respectively. The chambers are separated by a movable piston arranged to repeatedly decrease and increase the volumes of the chambers. The piston comprises a magnetic device, and electromagnetic control means are configured to move the piston by altering a magnetic field, for repeatedly decreasing and increasing the volume of the chambers.

Abstract: The dispensing package of the present invention provides a package that can be loaded with a flowable particulate material and sealed to provide a package for storage, shipment, and distribution of the of the particulate material. The dispensing package has a series of internal seals that are spaced apart from each other to define distribution flow channels through which the particulate material can be controllably dispensed from within the package. The dispensing package can be reclosed and resealed by the consumer after opening to allow for storage of the remaining particulate material until needed. A dispensing package can be used to dispense and distribute a wide variety of materials. For example, it is particularly useful for dispensing particulate materials having a relatively small average cross section such as pellets, grains, powders, seeds, plant nutrient, insect dust, and chalk.

Abstract: A three part container system. The first part is an outer rigid container formed with a mouth defining an opening into the outer container. The second part is an inner container positioned within the outer container, the inner container formed with a mouth defining an opening into the inner container, the mouth of the inner container being positioned in and sealed to or adjacent to the mouth of the outer container, at least a portion of the inner container being collapsible so that the inner container can be filled with a liquid. The third part is a turret fitted directly or indirectly by way of the outer container to the mouth of the inner container.

Abstract: A method and apparatus for the casting of metal components is disclosed. The apparatus includes a plunger for drawing molten metal from a crucible of hot metal and for forcing the drawn molten metal through the system, a hot runner assembly having a nozzle tip positioned adjacent the mold cavity, and a machine nozzle disposed between the plunger and the hot runner assembly. An adaptive and universal hot runner manifold having removable hot runner injectors fitted thereto is provided for use with a variety of castings.

Abstract: A method and apparatus for removably affixing a portable device to an object is disclosed. The apparatus includes a housing defining an inner volume, the housing being couplable to the portable device. The apparatus further includes a retractable fastener having an end region, the end region including an opening for fastening the apparatus to the object, the retractable fastener being slidable within the inner volume. The retractable fastener is positionable at a first position in which the opening is exposed to allow fastening of the apparatus to the object, a second position in which the apparatus is locked to the object and a third position in which the retractable fastener is substantially contained within the inner volume.

Abstract: A bicycle carrier for a vehicle including a frame, a crossbar assembly, a wheel tray, and a swing arm pivotally secured to the crossbar assembly. The wheels of the bicycle are positioned in the tray and secured by a tray coupling to restrain lateral movement. Two trays may be secured to the crossbar assembly to each receive a wheel of the bicycle. The swing arm pivots on the crossbar assembly and includes a shoe which engages the bicycle wheel. A shoe coupling secures the bicycle wheel to the swing arm. Two swing arms could be pivotally secured to the crossbar assembly each to engage a bicycle wheel. The frame may include a drawbar for insertion into the receiver of a trailer hitch. Additional crossbar assemblies could be secured to the frame to accommodate multiple bicycles.

Abstract: A rucksack comprising a bag having a back panel and, among other things, a belt assembly and a rigid frame secured to the back panel and the belt assembly. According to the invention, the bottom portion of the rigid frame has a V-shaped configuration with an angle ? at the apex, and in its middle and rear portion, the belt assembly includes an upwardly open pocket having a V-shaped configuration with an angle ? at the apex, where ? is greater than ?, such that said pocket is suitable for serving as a housing for receiving the V-shaped bottom portion of the frame while allowing the belt assembly to pivot angularly to some extent relative to the remainder of the rucksack.

Abstract: The invention relates to an advancing apparatus for the intermittent supply of a semi-finished material (22) in the form of a band to a press. The apparatus comprises a pair of displacement grippers (4, 7) which run forwards and backwards and by which the material (22) is advanced in an advancing phase, a stationary pair of clamping grippers (24, 27) by which the material (22) is held in a fixed manner in a non-advancing phase, and a control rocker (12) with a control drive (40, 42) which is coupled to one control end of the latter and to which the pair of displacement grippers (4, 7) and the pair of clamping grippers (24, 27) are coupled mechanically and their interaction is controlled.

Abstract: An exemplary break mechanism is sued for a nail gun having a security slide rod, a magazine, a hitting slot configured for containing a signal nail, a nail guiding track disposed between the hitting slot and the magazine, the nail guiding track being capable of guiding a plurality of chain of nails into the hitting shot one by one, a side cover configured for covering the nail guiding track. The break mechanism includes an elastic member disposed between the break member and the side cover, the elastic member is configured to drive the break member to swing towards the hitting slot and the nail guiding track; and a break member having a detection portion and a block member. The detection portion is capable of detecting push action of a single nail in the hitting slot and the nail in the nail guiding track adjacent to the nail in the hitting slot. When the break member is pushed by the nail in the hitting slot or the adjacent nail in the nail guiding track, the block member releases the security slide rod.

Abstract: A surgical instrument is disclosed. The surgical instrument includes a control unit and a staple cartridge including a transponder. The control unit is configured to transmit a first wireless signal to the transponder and to receive a second wireless signal from the transponder to determine one of a first electronic state and a second electronic state of the transponder based on the second wireless signal.

Abstract: A surgical stapling apparatus includes a staple cartridge and an anvil member. The staple cartridge includes a plurality of surgical fasteners disposed in rows of retention slots. The staple cartridge may have an annular or linear configuration of retention slots. The tissue contacting surface of the staple cartridge may be tapered or stepped. The anvil member has a tissue contacting surface that includes a number of pockets arranged for substantially aligning with the retention slots. In addition, the tissue contacting surface of the anvil member may complement the tissue contacting surface of the staple cartridge.

Abstract: Stenciling machines and methods for forming solder balls on microelectronic workpieces are disclosed herein. In one embodiment, a method for depositing and reflowing solder paste on a microelectronic workpiece having a plurality of dies includes positioning a stencil having a plurality of apertures at least proximate to the workpiece. The method further includes placing discrete masses of solder paste into the apertures and reflowing the discrete masses of solder paste while the stencil is positioned at least proximate to the workpiece and while the discrete masses are in the apertures. In another embodiment of the invention, a stenciling machine for depositing and reflowing solder paste on the microelectronic workpiece includes a heater for reflowing the solder paste, a stencil having a plurality of apertures, and a controller operatively coupled to the heater and the stencil. The controller has a computer-readable medium containing instructions to perform the above-mentioned method.

Abstract: A method and apparatus for welding a first workpiece to a second workpiece having a first surface to be chrome plated welds a heat sink liner to a second surface of the second workpiece opposite the first surface. The first surface of the second workpiece is them chrome plated. The first workpiece is then welded to the second workpiece at the heat sink, which absorbs a substantial amount of heat generated by the weld before that heat can reach the chrome-plated second surface.

Abstract: A method of making a circuitized substrate (e.g., a chip carrier) with solder balls thereon which are each formed in such a manner so as to have rough surfaces thereon, thereby providing enhanced connections with conductors (e.g., conductive sites) of an electronic device (e.g., a semiconductor chip). Methods of making an electrical assembly including both substrate and device, as well as this assembly and another substrate, thereby forming a multiple substrate assembly, are also provided.

Abstract: A method of welding superalloy components comprising: pre-heat one or more components to be welded to a temperature of at least 1500° F. in a substantially enclosed inert gas atmosphere; supplying multiple fillers to the weld zone, at least two of said fillers having different compositions; and welding the one or more preheated components utilizing a laser beam, while maintaining said pre-heat temperature.

Abstract: The present invention is related to a hanging file folder, which has a suspension bar and two adjusting structures respectively attached to the opposite ends thereof wherein each of the adjusting structures is attached by a collapsible hook. When the hooks of the disclosed hanging file folder are extended, the folder can be hung upon two parallel support rails of a hanging file frame assembly, whereas the hooks can be collapsed for facilitating general application. Additionally, the suspension bar of the present invention can be accommodated to folders of different sizes by setting the length of adjusting structures appropriately.

Abstract: The Open Easy Envelope is a very easy to use system. The Open Easy Envelope has a difference between the other inventions invented because it can be used on any type of Envelope, added just a new string feature to the envelope creating machine. A nylon string is attached about 0.5 mm higher then the fold line with a thin layer of glue. On each comer of the envelope are very small knots very close to the edge. As the String is pulled it opens the envelope easily or the string can be without a knot extending out of the envelope just a little bit. Also there will be a dotted line on the flap just about 2 mm below the fold horizontally. As the dotted lines are ripped just a little the string is left in the hands. The reason the string is put 0.5 mm higher then the fold line is because when the envelope is folded the string does not get in the way. The same processes can be used on the bottom and right sides of the envelope.