Abstract: A backflow assembly including a housing with a passage having at least one check valve positioned therein to permit fluid flow in one direction while preventing fluid flow in the reverse direction. The check valve includes a valve head connected to a stem having an outer surface. A hump extends radially outward from the outer surface of the stem. The stem is guided by a bushing during opening and closing of the valve. The bushing includes at least one retention member that moves along the outer surface of the stem during opening and closing of the valve. The interaction between the retention member and the hump on the outer surface of the stem causes a higher friction loss during opening and closing of the valve than other portions of the outer surface.

Abstract: A backflow assembly including a housing with a passage having at least one check valve positioned therein to permit fluid flow in one direction while preventing fluid flow in the reverse direction. The check valve includes a valve head connected to a stem having an outer surface. A hump extends radially outward from the outer surface of the stem. The stem is guided by a bushing during opening and closing of the valve. The bushing includes at least one retention member that moves along the outer surface of the stem during opening and closing of the valve. The interaction between the retention member and the hump on the outer surface of the stem causes a higher friction loss during opening and closing of the valve than other portions of the outer surface.

Abstract: A hose adapter incorporating a valve confined within the hose adapter reduces the number of component parts typically necessary in a fluid line system. The valve is confined within the hose adapter by a machined edge extending radially inward or mating ridges and cavities on the interior surface of the hose adapter and outer surface of the valve.

Abstract: A ball check valve comprises a housing having walls defining a fluid inlet, a fluid outlet, and a chamber communicating with the inlet and with the outlet. The ball check valve includes a spherical hollow ball housing a plurality of spherical shock absorbing members that stabilize the spherical hollow ball during operation of the valve. The spherical hollow ball moves between a first, flow impeding position adjacent the inlet and a second position spaced from the inlet laterally of a fluid passageway in the chamber.

Abstract: A check valve comprising a casing having a flange extending circumferentially around the inner periphery of the body. The flange is constructed by first drilling from a first direction at a diameter less than the predetermined diameter and then drilling from an opposite direction at the predetermined diameter. The flange defines a valve aperture for receiving a poppet valve. The poppet valve includes a stem including a plurality of legs each having an outer peripheral surface facing the valve aperture. The outer peripheral surface of the valve legs have rounded or recessed edges such that only a center portion of the outer peripheral surface of the legs can come into contact with the inner surface defining the valve aperture.

Abstract: A check valve comprising a casing having a flange extending circumferentially around the inner periphery of the body. The flange is constructed by first drilling from a first direction at a diameter less than the predetermined diameter and then drilling from an opposite direction at the predetermined diameter. The flange defines a valve aperture for receiving a poppet valve. The poppet valve includes a stem including a plurality of legs each having an outer peripheral surface facing the valve aperture. The outer peripheral surface of the valve legs have rounded or recessed edges such that only a center portion of the outer peripheral surface of the legs can come into contact with the inner surface defining the valve aperture.

Abstract: An aromatized food package is provided by providing a package body member part which defines a first and second cavity, inserting a food product into the first cavity, dosing a liquid mixture of food-acceptable aroma and a carrier consisting essentially of low boiling point solvent, into the second cavity, pulling a vacuum within at least the second cavity to cause the solvent in the second cavity to substantially evaporate while leaving aroma composition within the cavity, and sealing the cavities with a cover so that the cavities are separated one from the other and which, when removed, opens both cavities.

Abstract: The present invention relates to a method and an apparatus for freezing of material into fully or partially frozen blocks. The apparatus includes a refrigeration panel and a sheet or belt which is passed along the refrigeration panel. The apparatus includes at least one flexible, material receiving mold having at least one open compartment, where the sheet or belt provides a base for the compartment. The compartment is conveyed along the refrigerating panel to freeze the material, and then is subject to bending and/or twisting forces release the block(s) from the compartment.

Abstract: The present invention relates to extruded frozen pellets of sauce and a method for freezing pellets of sauce. This method includes dosing a layer of sauce onto a refrigerated surface, partially freezing the sauce on the surface to cause a generation of ice crystals and an increase in the viscosity of the unfrozen sauce, removing the partially frozen sauce from the surface, mixing the frozen and unfrozen sauce to form a shapeable sauce, forming the shapeable sauce into pellets, and freezing the pellets. The invention also relates to a method wherein the sauce is fully frozen in a thin layer and subsequently mixed with unfrozen sauce to form the shapeable sauce.

Abstract: The present invention relates to a package which contains a food product and an aromatized headspace. The headspace includes an aromatised food-acceptable inert gas and food-acceptable protective gas. The invention also relates to a process and an apparatus for introducing an aroma into the headspace of a package containing a food product during the gas packing of the food product by introducing a modified atmosphere into the headspace, and introducing a food-acceptable aroma dissolved in or mixed with a gaseous food-acceptable inert gas into the headspace of the package.

Abstract: A process for introducing an aroma into the headspace of a package containing a food product during the gas packaging of the food product which comprises introducing a modified atmosphere into the headspace, and introducing a food acceptable aroma dissolved in a liquid food acceptable gas under pressure into the headspace of the package.

Abstract: The disclosure is directed to a valve arrangement for controlling a linear or rotary hydraulic motor. The valve is connected to a pump which acts as a pressure medium source by the valve means and to a tank. The tank connection may be either direct or indirect. The arrangement of the present invention includes at least one seat valve located in a main flow connection between the pump and a port of the motor. Each of the seat valves would adjust the flow in the main flow connection to the motor via a pilot flow adjustable by a pilot valve. The pilot flow originates from the main flow through the seat valve.

Abstract: An arrangement intended for controlling hydraulic motors and comprising inlet elements (17, 18) and outlet elements (7, 5) in the form of valves arranged in a hydraulic circuit which connects the hydraulic motor (1) with a pump (15) which functions as a power source for at least the hydraulic motor (1) and preferably, but not necessarily, for one or more further hydraulic motors, and also to a tank (9). Each inlet element (17, 18) is mounted in the hydraulic circuit on the pressure side of the pump, whereas each outlet element (5, 7) is mounted in the hydraulic circuit on the suction side of the pump.

Abstract: A check valve includes an outer poppet therein having a central opening therein where the outer poppet is mounted on the internal lip within the body of a valve. The outer poppet is translatable relative to the inner lip and body and an inner poppet is mounted within the central opening of the outer poppet where the inner poppet is also translatable relative to the outer poppet and inner lip. A means for limiting the translation of the outer poppet relative to the internal lip and a means for limiting translation of the inner poppet relative to the internal lip allow the outer and inner poppet to extend between an open position and retracted position to allow improved flow area through the valve.

Abstract: An hydraulic valve of the flow-controlled type and including a valve housing provided with an inlet and an outlet and a valve body which is intended to coact with a valve seat in a manner to open and interrupt the connection between the inlet and outlet in dependence on a continuously controllable pilot flow in a pilot-flow channel extending from a pilot-flow chamber located on the side of the valve body remote from the valve seat to the outlet in the flow direction after the valve body. The pilot-flow chamber, in turn, communicates with the inlet via a variable constriction. For the purpose of simplifying this type of valve and rendering the valve more compact, the valve body is arranged in a recess which extends to the valve seat and which is formed concentrically with the valve seat. The recess is formed in a seat-part which incorporates one or more slots which are open towards the recess and which discharge into the pilot-flow chamber.

Abstract: A hydraulic control system for, e.g., electrically driven vehicles, comprising a hydraulic, double-acting steering piston-cylinder device which co-acts with a control unit which is actuable by means of a steering member, and which is connected to a hydraulic pump, driven by an electric motor, and to a tank, and which includes a control signal outlet through which a control signal is delivered for maintaining and interrupting the supply of steering hydraulic fluid to the steering-piston cylinder device.

Abstract: Valve for pressurized media which includes a valve housing provided with inlet and outlet and a movable main valve plug for infinitely variably controlling the pressurized medium flow through the valve with the aid of a pilot flow originating from the pressurized medium flow and passing through a variable throttling means situated in the main valve plug.

Abstract: Pressure medium valve having a valve piston located in a valve housing for control of a main pressure medium flow through the valve by the aid of a pilot flow through a variable pilot flow restriction disposed in the valve piston, the pilot flow being derived from the main pressure medium flow and being controllable by means of a control pilot valve. To achieve temperature independent control without area increase in the pilot flow chambers, an additional restriction between the valve piston and the cylindrical wall surrounding the valve piston of the valve housing is incorporated. The additional restriction has the form of a peripheral clearance of a substantially greater axial length than height.

Abstract: The disclosure is directed to a valve arrangement for controlling a linear or rotary hydraulic motor. The valve is connected to a pump which acts as a pressure medium source by the valve means and to a tank. The tank connection may be either direct or indirect. The arrangement of the present invention includes at least one seat valve located in a main flow connection between the pump and a port of the motor. Each of the seat valves would adjust the flow in the main flow connection to the motor via a pilot flow adjustable by a pilot valve. The pilot flow originates from the main flow through the seat valve.

Abstract: A valve means for controlling a linear or rotary hydraulic motor, which is connected to a pump (P) acting as pressure medium source via the valve means, and to a tank (T) either directly or via a valve means. Known valve means of this kind comprise valves with valve slides, which control both the supply of pressure medium to the motor and the return flow from the same. These valves, however, do not always satisfy the demand in question, owing to internal leakage which, for example, implies that a linear motor is caused to carry out undesired movements.