Abstract: The invention concerns seals particularly for rotating shafts.This seal, with a flexible membrane in the form of a cupola having an aperture for the shaft to pass therethrough, is characterized by the fact that said cupola has a thickness decreasing from its base to the contact ridge with the shaft, the elasticity necessary for maintaining the contact being obtained from the inherent rigidity of the membrane.
Abstract: A shock-absorbing device, such as a vehicle fender, comprises an assembly of interconnected elastomeric cells. The cells are arranged to extend at right angles to the forces to be absorbed and have a polygonal cross-section. The cells are formed so that, in absorbing forces, the device is initially resiliently deformed, then deformed by buckling of the cell walls and finally compressed.
Abstract: Plastic or elastomeric side elements of automobile bumpers are provided with shaped plates, attached thereto or embedded therein, which plates control the direction of buckling of the side elements when the bumper is driven inwardly upon impact of the vehicle. This inhibits damage to the fenders of the vehicle.
Abstract: A lip sealing ring has a lip engaging a shaft, the lip being at one end of a flexible sleeve which surrounds the shaft and is supported by its other end in a housing. The sealing lip is supported by a pair of stiffening rings, one on the inside and one on the outside of the sleeve, to ensure adequate sealing while allowing the sleeve to be sufficiently flexible to accommodate displacements of the shaft.
Abstract: The bumper bar of a vehicle is mounted by means of shock-absorbing resilient cushions which are arranged to be stressed in shear when forces are exerted longitudinally of the vehicle. Preferably the cushions are stressed partially in shear and partially in compression both for longitudinal forces and for lateral forces.
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