Abstract: An objective is to provide a reciprocating pump kept from lowering its performances, while restraining the cost from increasing. Collars 14, 20, 21 made of a material more excellent in resistance to corrosion than a manifold 3 are interposed between the manifold 3 and sealing members 10, 22, 23 for liquid-tightly sealing the manifold 3, so as to prevent the parts in contact with the sealing members 10, 22, 23 from being corroded by a liquid for use, and fully exhibit sealing functions, thereby preventing leakage from occurring in a pump chamber 4 and the pressure oscillation from being increased by the leakage, while the collars 14, 20, 21 made of the material excellent in resistance to leakage are used only in the parts in contact with the sealing members 10, 22, 23.

Abstract: The invention relates to an escalator or moving walkway that includes a drive shaft rotating at a relatively low peripheral speed around a horizontal axis and at least one sealing element associated with the drive shaft. Lubricant is supplied to the drive shaft and can escape from leakages at the one sealing element. A device is provided for a permanent recirculation of the lubricant escaping from the leakages. The device includes at least one conveyor element arranged downstream of the sealing element, seen in the direction of the leakage, and at least one recirculation element for the lubricant. The recirculation element cooperates with the conveyor element to return the lubricant into a region upstream of the at least one sealing element.

Abstract: A seal for hydraulically sealing a piston rod that travels axially into and out of a housing, preferably in a hydraulic dashpot. The seal comprises a preferably resilient-plastic sealing component (5). The sealing component is provided with one or more sharp ridges (10, 11, & 12) that rest against the piston rod, is tensioned across an elastomeric component (8), and is radially and axially secured along with the latter in a seal holder (2). The sealing component has an axial cylindrical wall (6) and a radial annular flange (7). The wall rests snug against the piston rod. The elastomeric component is annular and is provided with an inner surface (9) that tapers in toward the center of the housing and that the wall rests against. The outer surface of the elastomeric component is accommodated subject to radial tension in a setback (13) in the seal holder.

Abstract: A sealing system for fast-running motors with a directly flanged-on gear unit, used for passenger conveyor systems such as escalators and moving walkways, is provided. The sealing system includes at least one sealing element comprising a radial shaft seal, at least one centrifugal element, at least one cover and suctioning element, and a lubricating oil collection chamber. The lubricating oil collection chamber being provided in a region of the centrifugal element and connected via at least one channel that extends in the direction of the cover and suctioning element to a gear unit chamber of the gear unit, the gear unit chamber being located above an oil level in an intake region of the cover and suctioning element. The cover and suctioning element is arranged between the gear unit and the sealing element.

Abstract: A material comprised of two different polymers so that the material exhibits anisotropic properties. The anisotropic properties exhibit hardness and wear resistance along with flexibility. The anisotropic material is made up of a hard segment polymer and a soft segment polymer having contact with each other. This anisotropic material can be used to make seals, which exhibit these same properties and are therefore appropriate for use in high-pressure situations, where they will have a longer life than seals currently on the market.

Abstract: The present invention provides an improved assembly for rotating and sealing a centrifugal dryer and a dryer including such a sealing assembly. A seal according to the present invention includes an end cap supporting a bearing that in turn rotationally supports a rotor. The end cap has an attachment portion and a seal ring including a groove receiving a v-ring seal that sealingly engages the stub shaft attached to the dryer rotor. The seal ring defines a drain cavity having at least one drain port out of which any fluid that infiltrates past the v-ring seal can drain from the end cap. The drain port is disposed at a lower level than the v-ring seal and the grease seal so that fluid can drain away without accumulating and infiltrating past the bearing grease seal and into the bearing compartment formed between the end cap and rotor the stub shaft.

Abstract: This is a reliable long-lasting removable seal for attachment to the push rod opening of a service brake actuator that is to be used with a disc brake system. The seal allows the service brake actuator to enjoy the benefits of having breather holes in its housing wall while preventing any unwanted contaminants brought in through such holes from being transmitted to the attached disc brake mechanism. The seal is a hollow molded piece in the form of a tubular insert made of a slightly deformable material that fits into the central opening in the lower service brake housing through which the push rod extends. Flanges on the insert sealingly engage the wall of the service brake housing, and a central bore sealingly engages the push rod. The insert may include a separate internal bushing made of durable material which supports at least one annular seal for engaging the push rod.

Abstract: A mixing and kneading device comprises a mixing and kneading shaft mounted in a housing and driven to a rotating as well as to a reciprocating movement. For sealing the housing, there is provided a sealing assembly located between the housing and the mixing and kneading shaft. The sealing assembly includes a supporting assembly arranged between the housing and the mixing and kneading shaft and provided with first and second sealing means. The supporting assembly is locked against rotation, but coupled to the mixing and kneading shaft to perform therewith its reciprocating movement. The first sealing means serves for rotatively seal the mixing and kneading shaft and is located between the mixing and kneading shaft and the supporting assembly. The second sealing means provides for a translative sealing of the mixing and kneading shaft and is located between the supporting assembly and the housing.