Abstract: A first diaphragm which forms a wall of a first pump chamber is provided in the double diaphragm pump according to the invention, wherein the first diaphragm can be moved by means of a first driving means. In addition, a second diaphragm which forms a wall of a second pump chamber is provided, wherein the second diaphragm can be moved by means of a second driving means. What is more, a control for the driving means is provided, said control being designed and operable such that it controls the two driving means subject to one or a plurality of conditions.

Abstract: A first diaphragm which forms a wall of a first pump chamber is provided in the double diaphragm pump according to the invention, wherein the first diaphragm can be moved by means of a first driving means. In addition, a second diaphragm which forms a wall of a second pump chamber is provided, wherein the second diaphragm can be moved by means of a second driving means. What is more, a control for the driving means is provided, said control being designed and operable such that it controls the two driving means subject to one or a plurality of conditions.

Abstract: A pumping device (1) by which fluids held in a reservoir tank (9) can be pumped to a spray gun (11) in a metered manner, with a piston rod (5) mounted in a housing (2) in axially movable fashion, with a reciprocating piston (25) attached thereto, with a piston (7, 8) connected to the piston rod (5) and moved between a first and a second housing sections (3, 4), first and second pressure spaces (21,21?, 22, 22?) enclosed with the two housing sections (3,4), two pressure lines (17, 17?) in each of the housing sections (3, 4) such that emerge into one of the pressure spaces (21, 21? or 22,22?), a working medium (19) pressed through pressure lines (17, 17?) alternately into a pressure space, by means of which the piston (7, 8) is driven, with a diaphragm a central area (14) connected to the piston rod (5), and its outer area (15) connected to the housing (2), and a flexible ring area (16) between the central and outer areas (14, 15), and a pumping space (20) enclosed by the diaphragm (12, 13) and the housing (2),

Abstract: An insole or footbed for footwear includes a flat support element from which mushroom-shaped formations extend. Air circulation channels are formed between said formations. The insole ensures good foot ventilation.

Abstract: In a diaphragm pump with two diaphragms disposed in a pump housing and actuated by an adjusting piston which can be acted on alternately and which is arranged in between the diaphragms, the diaphragms are fixed with curvatures facing one another, or a curvature facing away from one another, and two reaction spaces are formed between the diaphragms and a cylinder, the reaction spaces accommodating the adjusting piston and being filled with a hydraulic medium and connected together in a constrained arrangement by means of hydraulic linkage lines. Both diaphragms remain in position and do not fold over during a transition from a suction stroke to a pressure stroke, because the diaphragms are continuously in contact with the hydraulic lines and are thereby fixed in place, so that the diaphragms are not subjected to alternating loadings.

Abstract: An insole or footbed for footwear includes a flat support element from which mushroom-shaped formations extend. Air circulation channels are formed between said formations. The insole ensures good foot ventilation.

Abstract: In a pumping device (1) by means of which fluids (10) or pourable media held in a reservoir tank (9) can be pumped to a spray gun (11) in a metered manner, with a piston rod (5) mounted in a housing (2) in an axially movable fashion, with a reciprocating piston (25) attached to its free end, with a piston (7, 8) firmly connected to the piston rod (5) that can be moved between a first and a second housing section (3, 4), and by means of which a first and a second pressure space (21, 21?, 22, 22?) is each enclosed together with the two housing sections (3, 4), with two pressure lines (17, 17?) worked into one each of the two housing sections (3, 4) in such a way that they emerge into one of the two pressure spaces (21, 21? or 22, 22?), with a working medium (19) pressed through the pressure lines (17, 17?) alternately into the particular pressure space (21, 21?, 22, 22?), by means of which the piston (7, 8) can be driven, with a diaphragm (12, 13) with a central area (14) firmly connected to the piston rod (5)

Abstract: In a diaphragm pump with two diaphragms inserted in a pump housing which can be actuated by means of an adjusting piston which can be acted on alternately and which is arranged in between the diaphragms, the diaphragms are clamped with a curvature facing one another or a curvature facing away from one another, and the two reaction spaces formed between the diaphragms and a cylinder accommodating the adjusting piston are filled with a hydraulic medium and connected together in a constrained arrangement by means of a hydraulic linkage. This embodiment means that both diaphragms always remain in the specified installation position and do not fold over during the transition from a suction stroke to a pressure stroke. This is because the diaphragms are always in contact with the hydraulic linkage and are thereby fixed in place, so that the diaphragms are not subjected to alternating loadings.

Abstract: A stratified insole for the internal ventilation and the control of the microclimate of a shoe of the type including a sole, if necessary provided with holes intercommunicating with the inside of the shoe, in correspondence with the internal side of which a ventilated stratified insole is joined. The insole is composed of at least one layer of thermoplastic material whose upper interface is shaped with a plurality of channels and is positioned above the upper part of a layer of transpiring material for the support of the sole of the foot. The insole is peripherally shaped according to the shape of the sole of the foot and is obtained by connecting a first layer made from transpiring rigid or semi-rigid material, a second layer made from insulating material, a third layer made from insulating material, and a fourth layer made from transpiring material.

Abstract: A stratified insole for the internal ventilation and the control of the microclimate of a shoe of the type including a sole, if necessary provided with holes intercommunicating with the inside of the shoe, in correspondence with the internal side of which a ventilated stratified insole is joined. The insole is composed of at least one layer of thermoplastic material whose upper interface is shaped with a plurality of channels and is positioned above the upper part of a layer of transpiring material for the support of the sole of the foot. The insole is peripherally shaped according to the shape of the sole of the foot and is obtained by connecting a first layer made from transpiring rigid or semi-rigid material, a second layer made from insulating material, a third layer made from insulating material, and a fourth layer made from transpiring material.

Abstract: The flow-adjusting device comprises: a housing (2) having an inlet channel (4) and an outlet channel (5) to be connected with respective pipes (6) through which a liquid is caused to flow, a closure assembly (7) arranged in the housing (2) between the inlet and outlet channels (4, 5) for drivingly adjusting the flow of the liquid, and a deformable diaphragm (3), deformation of which takes place in proportion to the liquid pressure in the outlet channel (5) and which is active on the closure assembly (7). The device also comprises a hollow body (15) internally bounding a storage chamber (16) disposed between the inlet and the outlet channels (4, 5), the storage chamber (16) having a lower portion (16a) to be engaged by the liquid and an upper portion (16b) defining an air-tight region wherein air under pressure is stored under the effect of increasing pressure of the liquid and causes recirculation of the liquid on decreasing of the liquid pressure.

Abstract: The flow-adjusting device comprises: a housing (2) having an inlet channel (4) and an outlet channel (5) to be connected with respective pipes (6) through which a liquid is caused to flow, a closure assembly (7) arranged in the housing (2) between the inlet and outlet channels (4, 5) for drivingly adjusting the flow of the liquid, and a deformable diaphragm (3), deformation of which takes place in proportion to the liquid pressure in the outlet channel (5) and which is active on the closure assembly (7). The device also comprises a hollow body (15) internally bounding a storage chamber (16) disposed between the inlet and the outlet channels (4, 5), the storage chamber (16) having a lower portion (16a) to be engaged by the liquid and an upper portion (16b) defining an air-tight region wherein air under pressure is stored under the effect of increasing pressure of the liquid and causes recirculation of the liquid on decreasing of the liquid pressure.