Abstract: A robust and rugged method for sensing atoms and molecule using a small hybrid Hollow-Core Photonic Bandgap Fiber (HCPBF) is described. The hybrid fiber and associated chamber apparatus is amenable to mass production and can be used for wavelengths of light from 400 nm to 2000 nm.

Abstract: A robust, rugged, and small hybrid fiber for use in reference chambers was created using a Hollow-Core Photonic Bandgap Fiber (HCPBF). The hybrid fiber and associated chamber apparatus is amenable to mass production and can be used for wavelengths of light from 400 nm to 2000 nm. The apparatus and method of making thereof is described herein.

Abstract: The present invention discloses a vacuum chamber having operating pressures in the ultra-high vacuum (UHV) range (10?8 torr to 10?13 torr) and incorporating transparent windows, said windows constructed from transparent materials (preferably glass), and having low helium permeability velocity under operating and storage conditions. Embodiments may also contain surface coatings on windows to reduce helium permeation. Also disclosed herein is a method for vacuum processing said chamber by heating entire chamber and exposing the inside and outside of the chamber windows to helium free environments. Methods for final sealing said chamber are also discussed. The vacuum chamber is useful as a container for optically-cooled atoms for use in quantum information and atomic clocks and as a sensor for magnetic fields, gravitational fields, and inertial effects.

Abstract: A method of producing a depth enhanced printed product uses a screen printer. An optic screen of finely spaced lines are formed as a cured emulsion on a mesh silk-screen. A clear gel is extruded through the mesh screen onto the front side of a clear plastic sheet, creating an array of lenses. An image is previously printed on the back side of the plastic sheet using an offset printer. An optic grid of lines are superimposed in the image. The optic grid has a relationship with the lenses to create special effects such as depth enhancement.

Abstract: An improved safety syringe with retractable needle is provided which allows retraction of the needle into a hollow plunger by additional forward pressure on the plunger after the fluid is driven from the syringe. The present invention contemplates an improved syringe device with retractable needle, and a method of delivering fluid to a patient and retracting the needle within the syringe after the fluid is delivered. The syringe preferably includes a hollow plunger inserted into one end of a cylindrical barrel and a hollow needle attached to the other end of the barrel. Biasing means is attached to the barrel for biasing the needle toward the hollow plunger, and means is provided for releasing the needle into the hollow plunger by applying additional forward pressure upon the plunger after the plunger is fully extended into the barrel. The present invention is particularly convenient for the operator to use in a one-handed fashion and is relatively uncomplicated and easy to manufacture.

Abstract: An upright cabinet of molded construction suitable for outside use in storing various types of equipment. The component parts of the cabinet interlock in assembly to provide a high strength structure. Front and rear recesses furnish additional strength and rigidity to the structure as well as protectively housing the rear wall and front door of the cabinet.

Abstract: An adjustable crutch has two vertical supports with an upper arm rest and a third, vertically adjustable lower support. The lower supports fixes the overall height of the crutch. The independently moved hand grip is easily adjustable to provide proper spacing between the crutch's hand grip and arm rest based on the user's arm length. This contruction requires only a two-step adjustment process which may be accomplished individually by the user.