摘要:
The invention concerns a nozzle (1) for blow moulding containers from blanks (21) comprising a neck (32) characterised in that it comprises an orifice (3) supplying blowing fluid into the blank whereof the dimensions are such that the orifice covers the neck when the blank is set in a blow mould (17).
摘要:
A signal coupling for a humidifier container comprises an internally threaded elongated member provided with an upstanding protuberance having a head portion and a stem portion, the stem portion defining a main gas passageway therethrough, an outwardly flared signal gas passageway communicating with the main gas passageway and a substantially planar land region on the peripheral surface of the stem portion adjacent to the signal gas passageway; and a flexible, elastic sleeve situated in tension about the peripheral surface of the stem portion and occluding the signal gas passageway as well as the planar land region.
摘要:
L'invention vise à positionner un récipient ou une préforme de récipient en matière thermoplastique, ayant un goulot (1) à paroi intérieure (2) sensiblement cylindrique de révolution, dans une position angulaire prédéterminée sur un mandrin (11) introduit à l'intérieur dudit goulot (1) ; la paroi interne (2) du goulot (1) ou la paroi externe du mandrin (11) ou la paroi interne (2) du gouloit (1) respectivement comporte au moins une saillie approximativement radiale (8) et la paroi externe (13) du mandrin ou respectivement du goulot (11) comporte au moins un épaulement d'appui (14), tourné vers l'extrémité libre du mandrin, pour guider ladite saillie radiale, cet épaulement (14) s'étendant sur la paroi en étant incliné par rapport à l'axe du mandrin ou respectivement du goulot, des moyens de blocage étant en outre prévus pour arrêter le mouvement relatif du mandrin et du récipient lorsque le goulot de celui-ci est disposé avec une orientation angulaire prédéterminée par rapport au mandrin.
摘要:
Die Vorrichtung zur Blasverformung von einem thermoplastischen Kunststoff weist eine Heizeinrichtung zur Temperierung von Vorformlingen und eine Blaseinrichtung zur Blasverformung der Vorformlinge in einen Behälter auf. Zur Ansteuerung mindestens einer im Bereich der Blaseinrichtung angeordneten Blasstation ist mindestens eine vorspannbare Steuerscheibe vorgesehen. Die Steuerscheibe wird von mindestens einer pneumatischen Feder gegenüber einer Mitnehmerscheibe vorgespannt und ist mit einer einen druckfreien Wartungsbetrieb zulassenden Druckablaßeinrichtung verbunden.
摘要:
Ein Hohlkörper kann dadurch universell auch zum mehrfachen Verwenden als Mehrwegverpackung eingesetzt werden, daß er aus mehreren ineinandergeschachtelten Behältern hergestellt wird. Dies läßt sich auf einfache Weise dadurch erreichen, daß innerhalb eines jeweils äußeren Behälters ein zu diesem äußeren Behälter innerer Behälter mit Hilfe einer Kunststoff-Blasanlage hergestellt wird, wobei der jeweils äußere Behälter die Form für den jeweils inneren Behälter darstellt.
摘要:
Ein Hohlkörper kann dadurch universell auch zum mehrfachen Verwenden als Mehrwegverpackung eingesetzt werden, daß er aus mehreren ineinandergeschachtelten Behältern hergestellt wird. Dies läßt sich auf einfache Weise dadurch erreichen, daß innerhalb eines jeweils äußeren Behälters ein zu diesem äußeren Behälter innerer Behälter mit Hilfe einer Kunststoff-Blasanlage hergestellt wird, wobei der jeweils äußere Behälter die Form für den jeweils inneren Behälter darstellt.
摘要:
A radially expandable core pin is disclosed for blow-molding a thermoplastic container having a body-portion and a neck-portion, with such neck-portion including a dispensing orifice and internal attachment means. The core is radially expandable to compression mold the internal attachment means of the container and comprises a plurality of circumferentially disposed core sections surrounding the central axis of the core pin. These core sections are radially movable between a normally collapsed position and an expanded position, and have outer surfaces which mate along their longitudinal adjacent sides when radially displaced to expanded position to form a substantially continuous neck-forming surf ace thereabout. The neck-forming surface is relieved in a predetermined pattern to form the internal attachment means of the container. The core pin also includes expansion means for mowing the core sections to expanded position, and blowing means formed through the core pin and adapted to be connected to a pressure source. The blowing means provides blow-molding pressure for forming the body portion of the thermoplastic container.
摘要:
(D A method is disclosed for blow-molding a thermoplastic container having a body-portion and a neck-portion provided with a dispensing orifice and internal attachment means, with such method including the steps of: (a) forming a hollow parison of thermoplastic material having an open end; (b) placing the parison within a female mold cavity having a body-forming portion and a neck-forming portion such that the open end of the parison is located within the neck-forming portion of the mold cavity; (c) inserting an expandable core pin into the open end of the parison, with such core pin including blowing means connected to a pressure source and having relieved areas formed on its exterior surfaces; (d) expanding the core pin such that the open upper end of the parison is forced against the neck-forming portion of the mold cavity and into the relieved areas on the exterior of the core pin, thereby forming the internal attachment means on the inner surface of the open end of the parison; (e) introducing pressure through the blowing means of the core pin to the interior of the parison thereby expanding the parison against the inner surfaces of the body-forming portion of the female mold cavity to form the body-portion of the thermoplastic container; (f) removing the molded thermoplastic container from the female mold cavity; and (g) collapsing the expandable core pin and, thereafter, removing the core pin from the neck-portion of . the thermoplastic container.
摘要:
Long lengths of a heat-shrinkable sleeve for use in splicing electrical cables are manufactured by providing an elongated impermeable core, extruding an elongated sleeve around and in contact with the core, and effecting an initial expansion of a portion of the sleeve to a larger diameter in an expansion zone (40) so that the sleeve separates and leaves a space between the sleeve and core. A fluid is introduced into the space under pressure via a fitting (62) at the downstream end of the sleeve. To begin the process, a permeable core (26) is used, and the sleeve is extruded around and in contact with the permeable core. A fluid is introduced under pressure from a fitting (52) upstream or downstream of the expansion zone through the permeable core to the inside the sleeve in the expansion zone, and the leading end of tt impermeable core is welded at (50) to the trailing end of th permeable core at a location upstream of the expansic zone. To form the sleeve, an inner compound and a thin lay of outer compound are applied in a crosshead (38a), and balance of the outer compound is applied around the sleev in a second crosshead (38b). Liquid nitrogen cools an stabilizes the inchoate sleeve at (110).