Abstract: A combination of a piston and a chamber, wherein the chamber defines an elongate chamber having a longitudinal axis, the chamber having, at a first longitudinal position thereof, a first cross-sectional area thereof and, at a second longitudinal position thereof, a second cross-sectional area, the second cross-sectional area being 95% or less of the first cross-sectional area, the change in cross-section of the chamber being at least substantially continuous between the first and second longitudinal positions, the piston being adapted to adapt itself to the cross-section of the chamber when moving from the first to the second longitudinal position of the chamber. The piston may comprise an umbrella-like support structure or a fibre enforced deformable container comprising a foam or a fluid. The combination may be used in a pump, a linear actuator, a motor, or a shock absorber.

Abstract: A piston-chamber combination comprising an elongate chamber which is bounded by an inner chamber wall and comprising an elastically deformable piston comprising a container in said chamber to be sealingly movable relative to said chamber at least between first and second longitudinal positions of said chamber, said chamber having cross-sections of different cross-sectional areas at the first and second longitudinal positions of said chamber and at least substantially continuously different cross-sectional areas at intermediate longitudinal positions between the first and second longitudinal positions thereof, the cross-sectional area at the first longitudinal position being larger than the cross-sectional area at the second longitudinal position, said piston including a piston body and sealing means supported by the piston body for scaling on said inner chamber wall.

Abstract: An activating pin which comprises a valve part, the piston part comprises within it a channel, the cross-section of said channel is, at least one part of said piston part, consisting of sectors, wherein in each sector the distance between the center point of the channel cross-section and the outermost limiting surface of the channel is larger than the corresponding distance measured along the line separating the sector from an adjacent sector, and said valve part is positioned movably with respect to said piston part between a first valve position and a second valve position for enabling the conduction of gaseous and/or liquid media through said channel when said valve part is in said first valve position, and inhibiting the conduction of gaseous and/or liquid media through said channel when said valve part is in said second valve position.

Abstract: A universal valve connector for valves of vehicle tires comprises a connector housing, partly connected to a pressure source, preferably a hand or foot pump, and has a coupling hole with a diameter corresponding to the diameter of the valve for connection, where the coupling hole has securing means, plus a sealing means against various valve sizes. The sealing means is mounted coaxially in the connector housing and established on at least two parallel levels, having the centre line of the connector housing, where the minor diameters of the sealing means correspond to the major diameter of the valve, where the connector is mounted when used. The sealing means, closest to the coupling hole in the connector housing has the biggest minor diameter, while the sealing means farthest from the coupling hole has the smallest minor diameter, and diameters between the extremes correspond to distance between these extremes.

Abstract: The purpose of the invention is to provide a valve actuator with an activating pin of a simple construction.

Abstract: An activating pin which comprises a valve part, the piston part comprises within it a channel, the cross-section of said channel is, at least one part of said piston part, consisting of sectors, wherein in each sector the distance between the center point of the channel cross-section and the outermost limiting surface of the channel is larger than the corresponding distance measured along the line separating the sector from an adjacent sector, and said valve part is positioned movably with respect to said piston part between a first valve position and a second valve position for enabling the conduction of gaseous and/or liquid media through said channel when said valve part is in said first valve position, and inhibiting the conduction of gaseous and/or liquid media through said channel when said valve part is in said second valve position.

Abstract: By a universal valve connector for inflation valves of vehicle tires (Sclaverand, Dunlop-Woods, or Schrader), whose connector consists of a connector housing (368), which partly is connected to a pressure source, preferably a hand or foot pump, and which partly has a coupling hold (5) with a diameter corresponding to the diameter of the valve, which is to be connected, where the coupling hole is equipped with a securing means for securing on the valve, plus a sealing means against valves of different sizes.

Abstract: By a universal valve connector for inflation valves of vehicle types (Sclaverand, Dunlop-Woods, or Schrader), whose connector consists of a connector housing (368), which partly is connected to a pressure source, preferably a hand or foot pump, and which partly has a coupling hold (5) with a diameter corresponding to the diameter of the valve, which is to be connected, where the coupling hole is equipped with a securing means for securing on the valve, plus a sealing means against valves of different sizes.