Abstract:
La présente invention se rapporte au domaine des poches autogonflables conçues pour être utilisées comme auxiliaires de décharge dans des distributeurs. Dans les poches autogonflables de la technique actuelle, qui se composent généralement de compartiments adjacents contenant un premier réactif en solution aqueuse et un second réactif soit en solution aqueuse soit sous forme solide, il est difficile de maintenir une production de gaz uniforme dans la poche, ce qui a pour résultat un écoulement irrégulier ou inconsistant depuis le distributeur. La présente invention améliore l'uniformité de production du gaz, en plaçant le second réactif uniformément précipité dans un milieu de suspension hydrodispersible. La poche expansible (2) se compose de plusieurs compartiments contenant un premier réactif en solution aqueuse (30), telle qu'une solution d'acide citrique, et une suspension de gomme hydrodispersible (34) contenant un second réactif précipité, tel que du bicarbonate de sodium. Le milieu de suspension hydrodispersible (34) peut également contenir un agent de nucléation et un agent tensio-actif.
Abstract:
This invention relates to a self-generating pressure applying device to provide pressure on material within a container to dispense the material. A problem exists with the size and shape of some containers in association with the materials therein in dispensing all of the material. An expandable pouch (2) is provided, for applying a pressure to a material in a container so that it is dispensed, comprising two superposed sheets of gas and liquid impermeable material with the edge portions (8), (10) permanently sealed. A semi-permanent peelable strip (20) joins the two sheets to form one compartment and at least another compartment. The one compartment is divided into first (22), second (24) and third (26) sub-compartments by semi-permanent peelable strips (18). A first reactive component (30) of a chemical gas generating system is in the first sub-compartment and a second reactive component (32) in the third sub-compartment.
Abstract:
Procédé et dispositif permettant de former une bande mobile (16) en un matériau composite stratifié présentant des zones d'affaiblissement à partir d'une bande continue mobile (12) en un matériau plastique relativement extensible, présentant des ensembles identiques de motifs graphiques qui sont imprimés sur des parties répétitives de longueur virtuellement constante de la bande et dont la longueur est susceptible de varier par rapport à une distance de longueur répétitive constante du motif, et une bande continue mobile (14) en un matériau à base de papier relativement non extensible. Sont également décrits un procédé et un dispositf formant un matériau composite à trois couches présentant des zones d'affaiblissement. Sont également décrits des découpes à plat en carton et des cartons imperméables aux liquides présentant des parties à languettes déchirables formées à partir du matériau composite à trois couches.
Abstract:
A system for forming a surface configuration, such as a neck and a flange, on a can body adjacent an open end thereof using a mandrel having an outer surface comprising generally cylindrical portions on each side of an annular recess which recess has a surface configuration corresponding to the neck and the flange to be formed. A resilient deformable object is located around the mandrel. A portion of a can body is placed between the mandrel and the resilient, deformable object which is then deformed so as to move a portion of the can body into conformation with the surface of the annular recess. At the same time, a force is applied to a portion of the portion of the can body being deformed to resist the movement thereof so that the portion of the can body in which the neck and flange is being formed is stretched and thinned as it is moved into conformation with the surface of the annular recess.
Abstract:
An expandable pouch (2) is provided for applying a pressure to a material in a container so that it may be readily dispensed therefrom and comprises two flat sheets (4,6) of a gas and liquid impermeable material in superposed relationship so as to have a length and a width and with the peripheral edge portions (12) thereof permanently sealed. A plurality of compartments (14,16) are formed in the expandable pouch by lengthwise extending semipermanent peelable strips (18). Two components (30,32) of a chemical gas generating system having a delayed action system associated therewith are located in one (14) of the compartments and one component of the two components (30,32) is located in the other compartments (16). After actuation of the two components, the one compartment (14) will gradually expand and as the material is dispensed will rupture the semipermanent peelable strip (18) between it and the next adjacent other compartment (16) to form one combined compartment with the one component in the next adjacent other compartment (16) continuing the gas generating system. This process continues until all the other compartments (16) have been expanded. Also, an expandable pouch (2) particularly designed for cooperation with a specifically shaped container (60) is provided wherein the other compartments are expanded so as to maintain a substantially constant pressure in the container.
Abstract:
A system for trimming a can body (12) wherein a can body (12) is positioned within a cutting member (26) so that the cutting member (26) is at the location where the can body (12) is to be trimmed. A resilient, deformable object (30) is inserted into the can body (12) and positioned therein so that at least a portion thereof is located radially opposite portions of the can body (12) on each side of the cutting member. The resilient, deformable object is deformed so as to move the portion of the can body located between the cutting member and the open end of the can body in a radially outward direction so as to sever that portion (46) from the can body.
Abstract:
Solution heat pump systems, improvements in the heat exchangers thereof, methods for utilizing waste heat and for improving the efficiency of heat exchange are provided, to up-grade waste heat by temperature boosting. Waste heat is fed to the evaporization zone of a first heat exchanger (2) of an absorption heat pump apparatus to vaporize a first fluid (3) of a binary fluid, the vaporized first fluid (3) is then absorbed by the binary fluid in the absorber zone (5) releasing heat. A second heat exchanger (40) in the absorber zone (5) accepts the released heat from the binary fluid, thereby upgrading the temperature of the fluid to produce steam in the heat exchanger (40). After the release of heat from the binary fluid, the first fluid of the binary fluid is vaporized by use of waste heat and the vapor is condensed (35). The condensate is transferred to the first heat exchanger (2) for revaporation and the desorbed binary fluid is transferred to the absorber for further absorption of fluid. Improved heat exchanging contact between a source of waste heat and a binary working solution is obtained by providing a uniform film of binary working solution on the outside surfaces of a vertical tube heat exchanger.