Abstract: An attachment device with which a sensor may be fixed to the outer periphery of a cylinder barrel of a fluid power operated drive cylinder. It comprises an attachment clamp, on which a holding face is provided for securing the sensor and cooperating with the peripheral face thereof. The holding face is formed by an undercut holding groove and provides also a working face against which a positioning element on the sensor may be engaged.

Abstract: My copending application Ser. No. 41,421 filed Apr. 23, 1987, now abandoned disclosed a (throw-away) packaging construction for Sterilized Dental Bits. These drill bits are so constructed and arranged that it is unnecessary for the Dentist or his assistant to touch the drill bits prior to the time that the bits are used with respect to each particular patient. The necessity for this construction came about to overcome the fear that many dental patients have of being contaminated by a communicable disease such as "Aids", where the Dentist or his assistant touches the drill bits used to drill out decayed portions of teeth that need "filling", or where a drill bit is used that has been previously used on another patient. My copending application discloses individual drill bits packaged in individual containers and closed by individualized closure members after the drill bits have been sterilized.