A pump, particularly a plunger pump, comprises a crank mechanism oscillating a plunger in a housing and an elastic sealing device fastened to the plunger. The sealing device provides a pressure-tight sealing with respect to a lower housing space containing the crank mechanism. As a result, an intermediate space in the housing may be filled with air. The intermediate space is hermetically separated from the lower housing space containing the crank mechanism.

A recoil pad, particularly for firearms, which can be fixed detachably to the stock of the firearm and includes a plastic base and a rear member made of deformable material, preferably polyurethane gel, which is rigidly coupled to the base and is adapted to dissipate the energy transferred to the shoulder by the recoil of the firearm upon firing. The recoil pad has two pins for snap fixing the pad to the stock of the rifle.

A sleeve (1), particularly a rod sleeve, at least consisting of a core comprising a core hub (2) that has two faces (3), and comprising a core pin (4), which extends in the direction of longitudinal axis Y and which projects over both faces of the core hub while forming two connecting journals (5). The inventive sleeve also consists of an outer sleeve (6) and of an elastic layer (7) located between the core hub (2) and the outer sleeve (6). The core hub (2) and the core pin (4) form a one-piece ...

A sports shoe, comprising a soft upper provided with a cuff and with a rear counter which are semirigid and are separately connected to the upper, an additional semirigid element that is associated with the upper or monolithically coupled thereto, in an intermediate region, between the cuff and the counter, the additional semirigid element having, at the rear and/or laterally, at least one first tab and at least one second tab for sliding engagement in first guides formed in the cuff and in the ...

A tampon, particularly for feminine hygiene, includes an absorbent body and a variably perforated or apertured cover. The absorbent body has an introduction end, a withdrawal end, and a longitudinal main portion therebetween. The cover includes a fluid-impervious plastic material in the form of a resilient three-dimensional web having a multiplicity of perforations. The perforations are varied over the length of the tampon so that a differentiated expansion of the tampon while absorbing fluid is...

In a gear, particularly for a robot, with a drive shaft and at least two parts rotatable relative thereto and to one another, in which a movement of one part is removable on its side remote from the other part, at least one of the rotary parts has a shaft connected in non-rotary manner thereto and which projects at least to the other part.

A projection exposure apparatus for microlithography using a wavelength.ltoreq.193 nm, includes (A) a primary light source, (B) an illumination system having (1) an image plane, (2) a plurality of raster elements for receiving light from the primary light source, and (3) a field mirror for receiving the light from the plurality of raster elements and for forming an arc-shaped field having a plurality of field points in the image plane, and (C) a projection objective. The illumination system has ...

There is provided an illumination system for microlithography with wavelengths.ltoreq.193 nm that includes a primary light source, a first optical component, a second optical component, an image plane, and an exit pupil. The first optical component transforms the primary light source into a plurality of secondary light sources that are imaged by the second optical component in the exit pupil. The first optical element and the second optical element are reflective. The first optical component inc...

In the wheel structure according to the invention, at least one and preferably several profile elements (2.1) are used for the transmission of forces between hub (1) and rim (3). The parts (1.2, 1.3) are combined or combinable into an intrinsically stiff structure. The structure is particularly suitable for car wheels.

A support device, for shoes to be associated with a sports implement such as a ski, a roller skate or an ice skate, includes a rigid shell which partially surrounds the shoe laterally, to the rear and in a lower region and can be interposed between the shoe and an element for engaging the sports implement, the rigid shell having means for detachable locking to the shoe.