Disclosed is an elastic compression device for storing, thanks to a composite spring, large elastic energies under a small mass, suitable for astronautics, aeronautics, elastic suspension elements for automotive and rail transport, and industrial mechanisms. This is achieved by a device, tolerant to damage, offering immunity to creep, shocks to corrosion and notch while reaching levels of considerable energy density, namely 1,400 J/kg, which is 4.66 times more than of steel springs. The device has a bellows shape, of its elastic element of compression, which shape includes at least one portion of an ellipse, terminated by supports. Further, the device is leakproof, so that the device can contain pressurized gas or fluid and can be used as an air or a hydraulic strut.

Pneumatic Structure and Associated Production Method

The structure (10) comprises an elastically deformable body (12) defining at least one network of internal cavities (14), each internal cavity (14) having a closed contour in at least one section of the internal cavity (14),

Each internal cavity (14) is able to be pressurized so as to make the elastically deformable body (12) pass from a rest configuration to at least one pressurized configuration,

In each pressurized configuration, the elastically deformable body (12) has a macroscopic metric that is distinct from its macroscopic metric in the rest position,

In each pressurized configuration, the radius of curvature of an outer surface of the elastically deformable body (12), considered regarding each internal cavity (14) adjacent to the outer surface, is greater than twice the size of the internal cavity (14) adjacent to the outer surface.

A fluid dispenser having a fluid inlet and a fluid outlet; and a pump for drawing fluid from a fluid source via the fluid inlet towards the fluid outlet; wherein the pump has a housing and a spring adapted to bias the pump away from a compressed position and towards a rest position; the spring being situated at least partially within the housing; and wherein the spring comprises one or more resiliently deformable polymer units.

The invention relates to an article comprising a main body (6, 7, 8) that consists of a polymer material having elastic properties, particularly an air spring bellows (2), a metal-rubber element or a vibration damper. In order for fire-retardant properties to be improved, the article is provided, partially or fully, with a cover (9) formed from at least one flat textile structure and/or at least one three-dimensional textile structure and/or at least one shrink film. The cover can be fire-retardant itself or can be equipped to be fire-retardant.

The invention relates to a method and an apparatus for receiving cylindrical bodies. In the method according to the invention, the receiving utilizes tight, self-restoring pressure elements, in which by adjusting the inflow and/or outflow of compressed air, the motion speed of the cylindrical body is decelerated. The apparatus according to the invention includes a pressure element within the elastic and tight material of which is installed self-restoring porous material. Furthermore, the invention relates to the use of the method and the apparatus for receiving a cylindrical body.

A damper for a storage compartment closure includes a bellows chamber and damper air passage structures each configured to provide an air volume intake during a bellows chamber extension that is less than an air volume expulsion during a bellows chamber compression. One damper air venting structure is a valve having a translatable lid including an aperture defined therethrough. A bellows chamber air pressure differential maintains the translatable lid in a closed configuration during the bellows chamber extension and in an open configuration during the bellows chamber compression. Another damper air venting structure is at least one bellows chamber vent including a cover configured whereby a bellows chamber extension incrementally transitions the cover to a closed configuration.

A packaging material includes: an outer box that accommodates an article to be packaged; and a cushioning material including: a sealed bag body with gas confined inside; a partition that divides an inside of the bag body into a first chamber and a second chamber each in an equal volume; and a ventilation passage communicating the first and second chambers, the cushioning material being disposed in a gap between an outer surface of the article and an inner wall of the outer box.

An inertia-actuated valve assembly includes a valve housing, a valve body and a biasing element. The valve housing includes a groove that has an open end fluidically accessible from along one side thereof. The valve housing includes a flow channel extending therethrough in fluid communication with the groove from along an opposing side of the valve housing. The valve body is positioned within the groove of the valve housing such that the valve body and the valve housing are axially co-extensive along at least a portion thereof. The biasing element operatively engages the valve body and generates a biasing force urging the valve body in a first axial direction. The biasing force is greater than a predetermined dynamic gas pressure threshold value multiplied by a pressure area and is less than or approximately equal to a valve body mass multiplied by 2.5 times the nominal acceleration due to gravity.

Gas spring assemblies include a flexible spring member and a restraining cylinder. The flexible spring member includes a flexible wall extending longitudinally between first and second ends as well as peripherally about a longitudinal axis. The flexible wall includes an inside surface and an outside surface with the inside surface at least partially defining a spring chamber. The restraining cylinder includes a cylinder wall that extends longitudinally between first and second open ends as well as peripherally about the longitudinal axis. The cylinder wall includes an inside surface and an outside surface. The restraining cylinder is disposed longitudinally along the flexible spring member between the first and second ends thereof with at least a portion of the inside surface of the restraining cylinder permanently attached to the flexible wall along the outside surface thereof by way of a chemically-bonded joint. Methods of assembly are also included.

The invention relates to an article having a single- or multi-layered main body having elastic properties, in particular an air spring bellows, a metal-rubber element or a vibration damper.

In order to improve its flame retardant properties, the main body of the article consists of or contains at least one layer D constructed from a rubber mixture which is free from halogen-containing flame retardants and contains at least one carbon black having a BET surface area according to DIN-ISO 9277 between 35 and 140 m.sup.2/g and an oil absorption number (OAN) according to ISO 4656 between 70 and 140 ml/100 g and a first aluminum trihydrate (ATH_1) and at least a further aluminum trihydrate (ATH_2), wherein the first aluminum trihydrate (ATH_1) and the further aluminum trihydrate (ATH_2) each have a different particle size.