Packaging containers which are closed, except for a pinch-type filling valve or filling-opening, are provided with an RF-sealable polymer, at least in the valve or opening, in order to be able to seal the valve or opening using RF frequency. Preferably, polymers which are sealable using MW energy are used, including, preferably, carbon monoxide-containing ethylene polymers.

Method of filling and sealing RF-sealable packaging containers

Microwave energy is used for sealing polymeric film material particularly the sealing of film material in the form of flexible containers.

Microwave sealing of thermoplastic material

A tube apparatus is provided to detect successful or failed tube operations. The tube apparatus includes jaws mounted for movement with respect to one another between (1) a first position spaced from one another and (2) a second position selected to perform a successful tube operation. A sensor is positioned to detect when the jaws have moved into the second position, and a timer is electrically coupled to the sensor for determining the time delay before the jaws have moved into the second position, wherein a time delay up to a predetermined time limit indicates a successful tube operation and a time delay exceeding the predetermined limit indicates a failed tube operation.

Microprocessor controlled tube apparatus having reduced radio frequency emanations

The invention relates to a closure module and a method for closing and/or separating filled sausage casings connected via a sausage neck, the closure module comprising two stamps movable relative to and towards each other and arranged such that a sausage neck can be placed therebetween, the stamps being capable of clamping the sausage neck in a closed condition, and further comprising a first anda second electrode, through which, in a closed condition of the stamps, a current can flow from the first electrode into the sausage neck and via the sausage neck into the second electrode.

Closure module and method for closing and/or separating filled sausage casings

The invention concerns a press for laminating a document, in particular a portable press. The inventive press comprises a lower plate (10) designed for receiving a document to be laminated, an upper plate (30) linked to a frame (2) and means for pressing the lower plate against the upper plate for laminating the document including in particular force and pressure adjusting means (5). The invention is characterized in that the pressing means further comprise means for raising (4) the lower plate towards the upper plate to ensure contact during the laminating process and means for transmitting the pressure force to the upper plate, said transmission means comprising for example a lever (6) articulated about a pivot (21) of the frame.

Press for laminating a document

A portable dielectric Radio Frequency generator adapted with wheels and a flexible output cable through which a suitable range of Radio Frequency currents pass. A levelable press applies Radio Frequency voltage to a plastic load and is adapted with a set of various shaped quick mounting electrodes and control circuitry. When the generator is moved to a work site, the press is stored in a holding device facilitating ease of transportation. The press provides suitable compressive forces on the electrode system selected by utilizing a spring compressed by a hand operated cam.

William Hall

Papers

Portable heat sealer