Abstract: A protective sheath for use with a hypodermic needle comprises a tubular body for accommodating the needle and at least a portion of the syringe barrel adjacent the needle. The sheath is latched in protective relation on the syringe, but may be released by rotation relative to the syringe or by deflection of part of the latch.

Abstract: A protective sheath for use with a hypodermic needle comprises a tubular body for accommodating the needle and at least a portion of the syringe barrel adjacent the needle. The body is latched in protective relation on the syringe, but may be adjusted relative to the latter to enable the needle to be exposed for use.

Abstract: A dock support having a piling composed of an upstanding rod the lower end of which is adapted to be embedded in the bottom of a body of water and an external telescoping sleeve having a cap at its upper end which normally confronts and seats on the upper end of the rod. A passage exists between the confronting surfaces of the inner and outer telescoping members and such passage is occupied by air, rather than water. The air prevents water in the passage rising to the level at which it may freeze, but should water in the passage rise to the freezing level compressed air may be admitted to the passage via a valve under sufficient pressure to purge such water.

Abstract: Method and apparatus for washing rugs and the like which includes conveying a rug upwardly along an inclined path, with the nap of the rug facing upwardly, then compressing the rug, preferably by a roller, at a location extending transversely to the inclined path of the rug. A jet of water and detergent is then directed toward the rug as it is conveyed past the compressing roller to thereby form a pool of water and detergent that is dammed by the roller, such pool of water and detergent being continuously agitated by the directed jet to clean the rug. A cleaning brush may also be added ascensionally to the directed jet, and compartmentalized collection means may be provided for collecting the water and detergent mixture separately from the cleaner rinse water, with the rinse water being recirculated through the washing system to reduce the water requirements of the washing operation.