A finger pressed against a platen or a fingerprint card provides a fingerprint object which is scanned by an interrogating beam of collimated light that is linearly displaced across the platen thereby maintaining a constant angle between the interrogating light beam and the plane of the object being scanned. As the beam scans across the fingerprint object, the reflected light beam is modulated. The modulated beam is imaged onto a linear array of photo-responsive devices to provide a series of ou...

A minute color coded identifier having a longitudinal axis, which is transversely color banded about its periphery. The identifier may, for example, be 0.015 inch long, have a transverse dimension of about 0.004 inch and have seven or more color bands such as to be observable under a power of 10 or more magnification. A method of making such identifiers, as well as a method of applying the same to articles for later identification is disclosed that involves a dispersion of identifiers in a trans...

A novel identification device permits its holder to prove his authority as holder thereof so as to largely prevent its abusive use. The said identification device consists of a handy small housing (1) comprising permanent storage means (10) with an alphanumerical character string forming a code stored therein, further input means, a word register (9) for entering an alphanumerical character string by means of the input means, a comparator (11) having connected to its inputs the permanent storage...

An identification device that permits the user to maintain on his person a variety of individual bits of information. The device includes a body portion having recesses in which pieces carrying individual bits of information may be inserted at the user's will. Indicia is formed on the pieces and is viewable through suitable means in the body portion. A combined retention device and insertion and removal tool is affixed to the body portion and serves to retain the pieces in the recesses.

An identification badge for detachable attachment to a wearer comprising a generally planar member having opposite surfaces. One of these surfaces faces outwardly from the wearer. A means is secured to the member for detachably attaching the badge to the wearer. A transparent pocket is formed in the outwardly facing surface. An identification member is removably positionable within the pocket so as to indicate the identity of the wearer.

An identification bracelet has a band portion and an enclosure for a likeness of the wearer having an outwardly facing transparent portion, and a closure member adapted for snap closing of the enclosure. A second enclosure is provided for other identifying indicia. The enclosures and closure members are preferably integrally molded with the band portion.

An identification snap for attachment to woven material such as clothing includes a first plate member bearing identifying indicia on an outer surface and a post projecting from an inner surface, and a second plate member including a centrally disposed orifice extending from an inner face to an outer face, the orifice being defined by a substantially frusto-conical wall which converges toward the inner face. The orifice is sized to receive the post of the first plate member in an interference fi...

The invention provides an identification device in the form of a holder for symbol elements. The holder has a body and a channel portion, the body and channel portion being integral to define a one piece unit, but the body being of a relatively hard plastic and the channel portion being of a relatively soft plastic. The body portion is adapted to be springingly engaged with the object to which the holder is to be connected, while the channel portion is transparent so that the symbol elements can...

Identity of pipeline at a first location as being the same pipeline at a second location, at which the pipeline pressure can be varied, is achieved by attaching a strain gage to the pipeline at the first location, varying the pressure in the pipeline at the second location, and observing the strain gage to see if it varies correspondingly to the pressure changes.

A closed coupled identification system for verifying the identity of an animal, object or other thing, has a probe including a circuit adapted to be connected to a source of alternating current and a separate, preferably miniature, circuit adapted to be implanted within or attached to the animal, object or thing. The probe circuit is held adjacent the implanted circuit for mutually inductively coupling the circuits so that a load applied to the implanted circuit has an effect on the current in t...