Abstract: A coin changer including a coin changer housing comprising a coin storage cassette. The coin storage cassette comprises a plurality of coin stores. A light source is located within the housing that directs light onto the coin stores with the light source providing sufficient light to allow a user to substantially view the coin stores in the absence of another light source.

Abstract: A cassette having a plurality of coin stores for storing and dispensing coins in a coin changer, the coin stores arranged in a plurality of rows of coin stores, and a coin reject path for transporting coins that have been rejected by the coin changer, the coin reject path being disposed between rows of the coin stores.

Abstract: A coin changer including a coin changer housing comprising a coin storage cassette. The coin storage cassette comprises a plurality of coin stores. A light source is located within the housing that directs light onto the coin stores with the light source providing sufficient light to allow a user to substantially view the coin stores in the absence of another light source.

Abstract: A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure gas cylinder and a medical pressure regulator. The valve is provided with first and second valves located within a housing and integrating a pressurization orifice. The initial opening of the valve in an axial direction enables gas to flow through the pressurization orifice at a first flow rate. The full opening of the valve in the axial direction enables the gas to flow through the second valve at a second flow rate, which is much higher than the first flow rate. The controlled pressurization of the gas through the orifice delays the time during which the gas reaches full recompression.

Abstract: A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure gas cylinder and a medical pressure regulator. The valve is provided with first and second valves located within a housing and integrating a pressurization orifice. The initial opening of the valve in an axial direction enables gas to flow through the pressurization orifice at a first flow rate. The full opening of the valve in the axial direction enables the gas to flow through the second valve at a second flow rate, which is much higher than the first flow rate. The controlled pressurization of the gas through the orifice delays the time during which the gas reaches full recompression.