In an apparatus for producing a tubular body with a membrane forming a separating wall extending across the interior of the tubular body, an injection mold is provided including a cylindrical hollow space corresponding to the outer wall of the tubular body and a pin is disposed in the cylindrical chamber in spaced relationship with the wall thereof so as to form a tubular passage, wherein the pin ...

Method of combustion with a gas burner having a burner head at one end of an inner gas pipe surrounded by an outer protective pipe, wherein gases from the burner head flow inside the inner pipe and inside the outer pipe and thereafter flow into an exhaust channel. The inner pipe terminates short of the burner head; a sleeve downstream of the burner head, is inserted into and/or placed concentrical...

SE REFIERE A UN SISTEMA DE CIERRE PARA UNA TAPA DE ENVASE, DONDE LA TAPA CONSTA DE: A)UNA CAVIDAD INTERIOR LA CUAL PERMITE QUE LA UBICACION DE LA TAPA Y EL CUELLO DEL ENVASE SEAN EXACTOS, PENETRANDO ASI HASTA QUEDAR EN CONTACTO CON LA BOLA. ESTA CAVIDAD EN SU PARTE MAS INTERNA TIENE FORMA ESFERICA, QUE SE EXTIENDE HASTA LA MITAD DE LA TAPA; B)UN DETALLE UBICADO ENTRE LA PARTE MEDIA E INTERNA DE LA...

A directional control seat valve includes a piston that is biased against a valve seat by means of a spring. The piston is associated with a compensating piston whose end face subjected to the pressure at one of the ports of the directional control valve is arranged before the valve seat when viewed in the closing direction.

A method of igniting and monitoring a high speed burner with which a fuel/oxygen-mixture exits at high velocity from a burner head, wherein the length of the flame is governed by the exit velocity of the mixture. The invention is characterized by placing an electrically conductive pipe in and concentrical with the burner channel for the fuel mixture, by causing a first end of the pipe to terminate...

Method of combustion with a gas burner having a burner head at one end of an inner gas pipe surrounded by an outer protective pipe, wherein gases from the burner head flow inside the inner pipe and inside the outer pipe and thereafter flow into an exhaust channel. The inner pipe terminates short of the burner head; a sleeve downstream of the burner head, is inserted into and/or placed concentrical...

A fastening element is provided for connecting mechanical parts to one another. The fastening element includes integrated, cutting machining grooves which are designed to work the edges of the hole, during fixing of the fastening element, by the removal of material in the parts to be mutually connected, so that the hole is made to fit against the shell surface of the fastening element. A fastening...

Coupling device intended for transferring a flow of a substance, which device comprises a first coupling element (1 ) and a second (21 ) coupling element. The first coupling element (1 ) comprises a fluid channel and a first sealing element (9) displaceable from a sealing position under the effect of spring force, and also a rigid first displacing element (8). The second coupling element (21 ) com...

A battery case for an electric bicycle and a mounting structure thereof is disposed at the handlebar of an electric bicycle. If the battery case is provided with battery indicator, speed indicator, headlight and the like instruments, the user rider can read it easily, and the battery case also can be used as a meter. Thus, not only the meter cost is saved, but also the circuit installation is simp...