Abstract: A barrier opening system for emergency escape and rescue comprises a vertical acting barrier device, an escape device, and a rescue device, the vertical acting barrier device winds a barrier via a winding shaft; a prestressed spring preloaded on the winding shaft for storing a restoring force when the barrier is unwound by the winding shaft; a brake mechanism for stopping the winding shaft from rotating; a brake release mechanism for releasing the winding shaft under an abnormal condition; an escape device comprising an identification unit and a master key for activating the brake release mechanism; the identification unit identifies a rescue personnel's identity before allowing the personnel to use the master key to activate the brake release mechanism; when the emergency button and/or the master key activate(s) the brake release mechanism to release the winding shaft, the barrier can be lifted up by the restoring force.

Abstract: A barrier opening system for emergency escape and rescue comprises a vertical acting barrier device, an escape device, and a rescue device, the vertical acting barrier device winds a barrier via a winding shaft; a prestressed spring preloaded on the winding shaft for storing a restoring force when the barrier is unwound by the winding shaft; a brake mechanism for stopping the winding shaft from rotating; a brake release mechanism for releasing the winding shaft under an abnormal condition; an escape device comprising an identification unit and a master key for activating the brake release mechanism; the identification unit identifies a rescue personnel's identity before allowing the personnel to use the master key to activate the brake release mechanism; when the emergency button and/or the master key activate(s) the brake release mechanism to release the winding shaft, the barrier can be lifted up by the restoring force.

Abstract: Multi-blade razors are provided. The razors include blades having different tip radii and thus different relative sharpness.

Abstract: Multi-blade razors are provided, having blades with differing properties. In one aspect, a razor is provided that includes a safety razor blade unit comprising a guard, a cap, and first, second and third blades with parallel sharpened edges located between the guard and cap with the first blade closest to the cap, the third blade furthest from the cap, and the second blade disposed between the first and third blades, the blades having first, second and third tip radii, respectively, at least two of the three blades having different tip radii, and at least two of the blades having different coefficients of friction.

Abstract: A razor blade includes a substrate with a cutting edge and a coating of a carbon-containing material doped, for example, with chromium.

Abstract: A lead having an adapting member extending from the lead's main body, wherein the adapting member is suitable for receiving a terminal pin of a second lead thereby electrically coupling the second lead thereto. The lead may then be electrically and mechanically coupled to a single electrical port of a medical device. The lead may be unipolar, bipolar, or multipolar and suitable for use with a pacer, defibrillator or other cardiac rhythm management device, wherein the second lead is electrically connected in parallel with a selected conductor of the lead. The adapter may be positioned on the lead adjacent the terminal pin such that when the lead is coupled to the medical device the adapter engages a portion of the medical device.

Abstract: A razor blade including a substrate with a cutting edge defined by a sharpened tip and adjacent facets, a layer of hard coating on the cutting edge, an overcoat layer of a chromium containing material on the layer of hard carbon coating, and an outer layer of polytetrafluoroethylene coating over the overcoat layer.