Abstract: A water bottle adapter (6) fits securely onto a water bottle (1) which is used to isolate the water within the bottle from a common water supply. The adapter (6) is fastened to a mating device by means of a threaded neck (7). The neck (7) includes two longitudinal tensioning ribs (37) that promote a retaining function between the neck (7) and any device that has been affixed to the neck (7). A pressure relief valve (13) having a valve stem (14) is formed within the lid (8) of the adapter (6) to permit the escape of air from the bottle (1) when in use. A series of ribs (19) is formed within a bore containing the valve stem (14) to dampen noise produced by the operation of the valve (13).

Abstract: A water bottle adapter (6) fits securely onto a water bottle (1) which is used to isolate the water within the bottle from a common water supply. The adapter (6) is fastened to a mating device by means of a threaded neck (7). The neck (7) includes two longitudinal tensioning ribs (37) that promote a retaining function between the neck (7) and any device that has been affixed to the neck (7). A pressure relief valve (13) having a valve stem (14) is formed within the lid (8) of the adapter (6) to permit the escape of air from the bottle (1) when in use. A series of ribs (19) is formed within a bore containing the valve stem (14) to dampen noise produced by the operation of the valve (13).

Abstract: A clip assembly (57) retains a ring structure (35) which contains a plurality of individual color coded rings (7). A hand held tool (3), such as a dental instrument having a shaft (6) may be marked with a colored ring (7) by inserting the shaft (6) through the aperture (64) of the ring and separating the ring from the structure (35) by a twisting or pulling motion. The clip assembly (57) and the structure (35) are protected from contamination by transparent covers (65, 66). A stand (67) may be used to retain the clip assembly prior to and after use, with or without the presence of the covers (65. 66). The stand can also retain a tape dispenser (68) which contains colored tape (31) as may be needed for marking instruments that are not suitable for labeling with a ring (7).