Abstract: A method of assembly and activation of a reusable self-expiring Security Identification Badge is provided. The Badge includes a base substrate having a void indicia area. Also included is an ink substrate having an expired indicia area of a soluble ink and an adhesive surface. Also included is an overlay substrate having an ink dissolver and a display surface. When the Security I.D. Badge is issued, the inked substrate is attached to the base substrate, the inked substrate covering the void indicia area. The overlay substrate is then placed over and attached to the inked substrate, the ink dissolver in contact with the soluble ink of the ink substrate. The ink dissolver of the overlay substrate contacts and coacts with the soluble ink of the inked substrate to dissolve the ink and allow the ink to migrate through to the overlay substrate to the display surface, where it can be visually perceived, in a preselected time interval.

Abstract: A time indicator is provided which includes a first substrate having first and second surfaces and at least two indicia areas on the first surface. A second substrate having first and second surfaces is also provided. A first chemical agent is provided on each of the indicia areas and a second chemical agent is provided on the first surface of the second substrate. The first surfaces of each substrate overlay and are in contact with each other, the chemical agents coacting to cause a visually perceptible change at one of the second surfaces overlaying the first indicia area in a first selected time interval and a visually perceptible change in said second surface overlaying the second indicia area in a second selected time interval, the first selected time interval differing from the second selected time interval.

Abstract: Computerized processing of identification badges employing a base carrier portion in the form of a web carrier. The web carrier has perforated end portions formed integrally therewith so that the sprockets of automated computerized printing equipment can be used to engage the carrier web. The carrier web also is formed into sections via a lateral perforation so that each section is removable, one from the other. The badges are each adhesively mounted on individual ones of the sections. The adhesive employed is preferably a fugitive glue which holds the badge onto the carrier web while permitting the badge to "peel" away from the carrier web without any adhesive remaining on the badge. The badge employed is relatively stiff, being formed of plastic material, and has an elongated slot formed on the upper central portion thereof so that the badge can be affixed to the person via a spring clip. A portion of the clip passes through the elongated slot to support the badge.

Abstract: A time indicator for use as a security badge. The badge includes a four-layer front part and a two-layer rear part. The front part has, overlying each other, a transparent front support layer with a front print display surface, an adhesive and ink display layer with a front ink display surface, an optical barrier layer; and an adhesive and ink dissolver layer. The rear part has, overlaying each other, an ink film layer and a backup member layer. Upon issue of the badge, a release sheet is peeled off the ink film layer, and the front part is overlaid and pressed down upon the rear part, with the adhesive and ink dissolver layer and the ink film layer forming an assembly joint therebetween.

Abstract: A temporaty badge fabrication system is provided. The system comprises a badge for attachment to a wearer having at least one surface coated with an ambient light sensitive coating thereon which when exposed to ambient light conditions for a specified period of time changes to a specified color. An apparatus is further provided for printing information on the badge. The apparatus comprises a source of radiation and a printing mask facing the radiation source. The mask comprises an opaque portion and a radiation transmissive portion. The radiation transmissive portion contains an information portion. A badge holding means is disposed so that the mask is located between the radiation source and the badge holding means. A means is provided for activating the radiation source for a period of time sufficient to print the information on the badge in the specified color.

Abstract: A writing board is provided for mounting an overlying sheet for writing information thereon and an underlying sheet for storing a copy of the information. The board comprises a board having a writing surface thereon wherein portions of the surface are non-adhesive and tacky. A mounting means is attached to the board for removably mounting to the board the overlying sheet along an edge of the sheet. Portions of the non-adhesive tacky surface grip the underlying sheet to the surface to prevent slippage of the underlying sheet while writing thereon. Preferably, an other mounting means is attached to the board for additionally removably mounting the underlying sheet to the board along the edge of the sheet. The preferred mounting means it comprises a plurality of clips, wherein a means is provided for releasing the clip upon forcing the board down on a hard surface. Preferably the underlying sheet is a plurality of temporary identification badges and the overlying sheet a log therefore.

Abstract: A temporary security badge fabrication system is provided comprising a badge having at least one surface coated with an ambient light sensitive coating which when exposed to ambient light conditions for a specified predetermined period of time will change to a specified color. A means is also provided for printing information on the badge. An attachment means is provided which is mounted to the badge for attaching the badge to a wearer and permitting exposure of the badge to ambient light. Thus when the badge is attached to the wearer and exposed to ambient light for the specified period of time, the badge changes to the specified color.

Abstract: The present invention provides a digital system including circuitry for imaging items passing on a conveyor belt through an X-ray fan beam. The circuitry of the present invention enables detection of the items as soon as the X-ray beam is pierced and an image of the items is maintained on a monitor following removal of the items from the X-ray beam. This enables detection of all items entering the X-ray beam, and subsequent inspection of the items.

Abstract: A lens switching system is provided for use in X-ray examination devices. The lens system includes at least a full viewing lens for viewing the entire object and a magnification lens which can be switched into the optical axis and controlled to different positions for magnifying the object. The optical axis for the magnification lens can be moved by means of a control handle controlling the lens system so that magnified portions of the object can be observed through the magnification lens.

Abstract: A temporary badge fabrication system is provided. The system comprises a badge having at least one surface coated with an ambient light sensitive coating thereon which when exposed to ambient light conditions for a specified period of time changes to a specified color. An apparatus is further provided for printing information on the badge. The apparatus comprises a source of radiation and a printing mask facing the radiation source. The mask comprises an opaque portion and a radiation transmissive portion. The radiation transmissive portion contains an information portion. A badge holding means is disposed so that the mask is located between the radiation source and the badge holding means. A means is provided for activating the radiation source for a period of time sufficient to print the information on the badge in the specified color. Thus, when the badge is exposed to ambient light for the specified period of time the badge changes to the specified color and the information is not discernible.

Abstract: An apparatus for inspecting various articles in connection with the present invention comprises a structure for operating a retractable door which includes a shaft member, a flexible door member carried by and windable on the shaft member, a motor structure for driving the shaft member, and a gear train mechanically linking the motor and shaft member. The gear train includes a drive gear and a driven gear with the driven gear being connected to the shaft member and the drive gear being connected to and driven by the motor. The drive gear and driven gear both comprise gear teeth about only a portion of the respective circumferences. A switch member for controlling the motor is provided, and an actuating control structure is provided with respect to the drive gear for controlling the switch member.

Abstract: An inspection system is provided to simultaneously X-ray inspect hand carried articles and provide metal detection of the person of the carrier. These different inspections are independent, and may be carried out separately from one another. The X-ray inspection involves the insertion of a hand carried item into a chamber, and guiding it along the X-ray inspection station by holding a handle outside of the detector. Metal detection of the person may be accomplished independently by walking through a metal detector arch.

Abstract: An X-ray optical system for examining articles, comprising a source of X-rays directed in a generally downward first direction, fluorescent screen means for converting the X-rays to a light image, such screen means being disposed below said X-ray source, means for receiving the article between the X-ray source and the fluorescent screen means such that X-rays passing through the article reach the screen means to generate thereat a light image of the article, a first light reflecting means disposed generally below the fluorescent screen means so as to receive the light image from the fluorescent screen means, such light image being directed generally in the first direction, second light reflecting means disposed opposite and obliquely to the first light reflecting means, so as to receive the light image reflected from the first light reflecting means and to redirect the light image in a generally upward second direction, and means for viewing the light image, such viewing means being disposed above the second

Abstract: An article inspection apparatus comprising chamber defining means that are substantially impermeable to x-rays. The chamber defining means comprise a first portion comprising entry and exit portions and a second portion located between the entry and exit portions. Also included is an x-ray source for directing x-rays to the chamber at said second portion and flexible x-ray shielding means disposed at the entry and exit portions, the entry and exit portions both comprise respective first and second regions, the first regions being removed from the chamber second portion and the second regions being located between the second portion and their respective said first regions. The second regions comprise completely enclosed tunnels communicating with the second portion and with the first regions. The first regions comprise top and partial side wall members, which side wall members have a cutaway at the end thereof more remote from the second portion.

Abstract: An object viewing system, comprising a radiation source, means for converting a radiation image to a light image, said means being spaced from said radiation source and comprising a phosphor layer and a light reflective layer, said phosphor layer being more proximate to said radiation source than said reflective layer and said reflective layer being disposed so as to reflect light from said phosphor layer in the direction of a radiation permeable light reflector, said radiation permeable light reflector being located between said converting means and said source, said reflector comprising a light reflecting area that faces and is angularly oriented with respect to said phosphor layer, and being disposed so as to receive light traveling in a first direction and reflecting said light in a second direction, said reflector being spaced from said radiation source such that said object can be located therebetween.

Abstract: The present invention comprises an x-ray transmission target tube that includes an envelope; x-ray permeable window means disposed at the envelope and forming a part thereof; means for directing a charged particle beam to the window means to generate x-rays thereat; structural means for providing a space at the window means, which structural means comprises an x-ray permeable window element that is disposed opposite the window means and further comprises wall means, which structural means, together with the window means, forms the space; and means for transferring a heat-transfer fluid through the space so as to be in heat transfer relationship with the window means.

Abstract: An electrophotographic diffractometer apparatus, comprising a photoconductive storage member, means for uniformly charging said storage member, means for holding a diffraction specimen, means for directing a collimated beam of electromagnetic radiation to said specimen, whereby diffracted rays of said beam are directed to said charge storage member and produce discharged local areas thereon in accordance with the diffraction characteristics of said specimen, and scanning means for electrically measuring the charge pattern at said storage member.

Abstract: An article transfer and inspection apparatus comprising chamber-defining means, substantially impermeable to x-rays; and x-ray source for directing x-rays to a first portion of said chamber; feed and extraction conveyor systems individually having at least a portion thereof outside the chamber and respectively serving to introduce and remove an article into and from the chamber, the feed conveyor system being operable at a first speed; an inspection conveyor system located between the feed and extraction conveyor systems and at least partly disposed at the chamber first portion, the inspection conveyor system being operable at a second speed at least equal to the first speed and serving to carry the article through the chamber first portion; and means for converting x-rays passing through the first portion and the article into a visual image.The apparatus can also include means for achieving a pre-determined spacing between various articles.