A system includes a dip tube, a feed line, and a check valve. The dip tube is inserted through an opening in a source of chemical precursor and into the chemical precursor in the source. A portion of the feed line is located in the dip tube. The feed line passes out of the dip tube. The chemical precursor is capable of flowing out of the source through the feed line in a downstream direction. The check valve is located in the portion of the feed line in the dip tube. The check valve permits the chemical precursor to pass substantially only in the downstream direction. The feed line is coupled to a transfer pump that draws the chemical precursor out of the source through the portion of the feed line in the dip tube.

The present invention provides an apparatus for producing and putting on gloves capable of producing gloves that fit an individual hand shape and also putting the glove on the hands, and a method for producing and putting on gloves. The apparatus for producing and putting on gloves comprises welding and cutting means which welds and cuts a first elastic film and a second elastic film at a position on the outer side of a contour of a user's hand in a state in which the user's hand is sandwiched between the first elastic film and the second elastic film.

The invention relates to a punching and/or welding machine for acting on a piece of motor vehicle bodywork that is made of plastics material, the machine having movable punching and/or welding tools, each of which is adjusted to perform a punching and/or welding operation and that are transferred from a waiting position to a working position for performing the punching and/or welding operation, the punching and/or welding operation being performed in three stages: a) transferring from a waiting position at a distance from a skin of the piece in order to come into a working position in contact with the skin; b) performing the punching and/or the welding; and then c) returning to the waiting position;
the device further comprising a support for receiving the skin in a determined position. The support and the movable tools are arranged in such a manner that, once the skin has been positioned on the support, it defines, possibly in association with a protective screen, a safety volume within which the movable tools move in order to perform the punching and/or welding operations on the skin.

A deep-drawing packaging machine that includes a sealing station and a method for changing the sealing frame together with the sealing plate at the sealing station. The sealing station includes a sealing plate and a sealing frame. The sealing plate may be releasably coupled to an upper sealing tool part, and the sealing frame may be slidably removable at a lower sealing tool part. The sealing frame may be slidable on rails. The sealing frame may include one or more centering aids for aligning the sealing plate with respect to said sealing frame during removal thereof. The centering aids may be displaceable underneath a film web by the upper sealing tool part during the clamping of the film web between the sealing frame and the upper sealing tool part.

A rechargeable sealer with storage function includes a casing, an electric heating module, a circuit board, a supporting base, a press bar, a spring-back mechanism, and a sliding plate. The casing is provided with an accommodating chamber, in which are provided with a fore contact element and a rear contact element. A rechargeable battery is positioned in and between the fore contact element and the rear contact element. The circuit board, provided with an external slot, is disposed in the accommodating chamber, featured in charging the rechargeable battery. The press bar is provided with a sliding slot, and is pivotally connected with the pivoting shaft of the supporting base, served as a pressing structure corresponding to the casing.

The present invention provides an apparatus for producing and putting on gloves capable of producing gloves that fit an individual hand shape and also putting the glove on the hands, and a method for producing and putting on gloves. The apparatus for producing and putting on gloves comprises welding and cutting means which welds and cuts a first elastic film and a second elastic film at a position on the outer side of a contour of a user's hand in a state in which the user's hand is sandwiched between the first elastic film and the second elastic film.

The present invention discloses a heat radiator, especially an infrared radiator, having at least one radiation source by means of which supplied electrical energy is convertible into heat radiation, as well as a control. This control comprises at least one frequency converter having a first, a second and a third output so that between the first and the third output a first alternating current is providable and between the second and the third output a second alternating current is providable by means of which the at least one radiation source is operable.

A method for splicing two bundles (1, 2) of multifilament textile fibers comprises: inserting an end portion of a first bundle (1) into a first end of a heat-shrinkable sheath (10) and an end portion of a second bundle (2) into a second end of the sheath, axially opposite the first end, until the ends of the end portions of the two bundles are facing each other; inserting a curable organic material inside the sheath (10) in a space separating the end portions of the bundles (1, 2); heating a portion of the heat-shrinkable sheath (10) surrounding a joining portion (9) to a predetermined temperature; curing the curable organic material; and removing the sheath (10).

The present invention provides an apparatus for producing and putting on gloves capable of producing gloves that fit an individual hand shape and also putting the glove on the hands, and a method for producing and putting on gloves. The apparatus [1] for producing and putting on gloves comprises welding and cutting means which welds and cuts a first elastic film and a second elastic film at a position on the outer side of a contour of a user's hand in a state in which the user's hand is sandwiched between the first elastic film and the second elastic film.

The vacuum sealer includes a base, a cover, a vacuuming device, at least a heating device, at least a heat-resistant element wrapping around the heating device, at least a heat insulation element between the base and the heating device, at least a power provision device, and at least a safety breaker device. The safety breaker device includes at least a safety switch, and at least a trigger element. The object to be sealed is placed on the heating device and, as the cover closes the base, the safety switch engages the trigger element to release the safety breaker device and to allow the power provision device to power the heating device. The heat insulation element prevents heat from being conducted to the base. With the dual protection from the safety breaker device and the heat insulation element, safety is enhanced and the power provision device may operate under high voltage.