Abstract: Dental implant drill holes and the shape of a dental implant superstructure are chosen by creating a computer model giving jawbone structural details, gum surface shape information and proposed teeth or dental prosthesis shape information. The computer model shows the bone structure, gum surface and teeth images properly referenced to one another so that implant drill hole positions can be selected taking into consideration proper positioning within the bone as well as proper positioning with respect to the dental prosthesis. Similarly, manufacture of the dental implant superstructure used for fixed dental prosthesis or overdentures can be designed based on knowledge of the actual implant positions referenced to an image of the gum surface and proposed dental prosthesis.

Abstract: A phase mask (15) for modulating a collimated light beam passing therethrough, the light beam being diffracted to photoinduce a refractive index profile in a photosensitive optical medium, the phase mask (15) comprises a substrate (17) having an outer surface provided with a plurality of parallel grating corrugations (19). The grating corrugations (19) have a non-uniform relief depth across the outer surface for photoinducing a non-uniform refractive index profile in the photosensitive optical medium. The non-uniform relief depth is defined by a variable thin film layer (21) of variable thickness overlaying the substrate (17). The grating corrugations (19) can either be etched into the variable thin film layer (21) itself or be etched into the substrate (17), with the variable this film layer (21) being deposited on it after etching. Methods to make such phase masks are also provided.

Abstract: Merchandise is marketed from the premises of a merchant from which the merchandise is normally transported in bags supplied by the merchant. This may, for example, be a grocery store. The merchant provides customers with re-usable bags for transporting their purchases. These bags may be sold to the customers or they may be given away as a promotion. Each customer who returns to the store with the re-usable bags receives an award on the acquisition newly acquired merchandise. The award may be a discount on the newly acquired merchandise, a reward in a reward program or any other product or service that will attract customers. The newly acquired merchandise may be restricted to selected products identified by displays or advertising. Where a particular manufacturer's or supplier's product is selected as a product triggering a discount or is being offered at a discount, the manufacturer or supplier may pay the merchant or provide some other consideration.

Abstract: Dental implant drill holes and the shape of a dental implant superstructure are chosen by creating a computer model giving jawbone structural details, gum surface shape information and proposed teeth or dental prosthesis shape information. The computer model shows the bone structure, gum surface and teeth images properly referenced to one another so that implant drill hole positions can be selected taking into consideration proper positioning within the bone as well as proper positioning with respect to the dental prosthesis. Similarly, manufacture of the dental implant superstructure used for fixed dental prosthesis or overdentures can be designed based on knowledge of the actual implant positions referenced to an image of the gum surface and proposed dental prosthesis.

Abstract: Dental implant drill holes and the shape of a dental implant superstructure are chosen by creating a computer model giving jawbone structural details, gum surface shape information and proposed teeth or dental prosthesis shape information. The computer model shows the bone structure, gum surface and teeth images properly referenced to one another so that implant drill hole position can be selected talking into consideration proper positioning within the bone as well as proper positioning with respect to the dental prosthesis. Similarly, manufacture of the dental implant superstructure used for fixed dental prosthesis or overdentures can be designed based on knowledge of the actual implant position referenced to an image of the gum surface and proposed dental prosthesis.

Abstract: The alloy is for making an infrared transducer. It is constituted by (In1−xTlx) (As1−ySby) in which 0≦x<1 and 0<y<1 (where x and y are less than ½). On a GaSb or AlSb substrate, the transducer comprises an active layer of the alloy having a composition such that its lattice is of a size that is equal to that of the substrate material.

Abstract: An injection pump comprises several modules in a housing. Each module has a chamber supplying an injection circuit, separated by a deformable diaphragm from a compartment defined by a bore of the housing and by a reciprocating piston. The chamber is connected to a fuel supply and is connected to the injection circuit by a non-return valve. The pressures of the liquid in each compartment are adjusted independently. All pistons are driven by a same cam.

Abstract: A magnetic reading head having a magneto resistant element and improved polarization means. The polarization conductor is associated with a supplementary magnetic layer positioned opposite to the magnetoresistant element.

Abstract: Dental implant drill holes and the shape of a dental implant superstructure are chosen by creating a computer model giving jawbone structural details, gum surface shape information and proposed teeth or dental prosthesis shape information. The computer model shows the bone structure, gum surface and teeth images properly referenced to one another so that implant drill hole positions can be selected taking into consideration proper positioning within the bone as well as proper positioning with respect to the dental prosthesis. Similarly, manufacture of the dental implant superstructure used for fixed dental prosthesis or overdentures can be designed based on knowledge of the actual implant positions referenced to an image of the gum surface and proposed dental prosthesis.

Abstract: A spout for a jerrycan, characterized by its flexing and telescoping capabilities. The spout consists of a main accordion-like tubular section, with a connector at one end and a nozzle at the other end. The length of the spout can double relative to its retracted condition, wherein it can be forcibly telescopingly extended/retracted, yet will maintain its last chosen extended/retracted condition when the forcible action ceases. The spout main section can be also be flexed, yet will similarly maintain its last chosen flexed condition once this forcible action ceases.

Abstract: The disclosure herein describes a safety guard which comprises a cover with openings adapted to be mounted over an electrical wall outlet and closure elements which are slideably mounted to the cover to expose or to cover the openings in registry with sockets of the wall outlet. The cover and the closure elements are structured so as to require two movements to displace the closure elements from a socket-covering position to a socket-exposing position. Also, a spring element connected between the cover and each closure element serves to bias the latter to the socket-covering position as the closure element is moved to expose the opening.

Abstract: A magnetic bubble memory has a reading zone with thin detection elements, coated with an insulating layer which carries thick bubble propagation patterns of high magnetic permeability material, and a bubble stretching zone also including thick propagation patterns of shapes such that the rotating field of the device causes the bubbles to progress along the patterns. The device further includes, out of the detection zone, additional thin localized elements of high magnetic permeability material having a thickness much lower than that of the patterns, obtainable by photolithography and located at the same level as the thin detection elements. When located in the stretching zone, the thin patterns are arranged to cooperate with thick patterns so that the voltage well generated by the rotating field of the device has a substantially constant value while moving along the thick patterns.

Abstract: The disclosure herein describes a safety guard which comprises a cover with openings adapted to be mounted over an electrical wall outlet and closure elements which are slideably mounted to the cover to expose or to cover the openings in registry with sockets of the wall outlet. The cover and the closure elements are structured so as to require two movements to displace the closure elements from a socket-covering position to a socket-exposing position. Also, a spring element connected between the cover and each closure element serves to bias the latter to the socket-covering position as the closure element is moved to expose the opening.

Abstract: A magnetic bubble memory device comprises a common package accommodating a lurality of pairs of memory chips. In each pair, the two chips have bubble propagation patterns in confronting relation which are mirror images of each other and additionally angularly offset by 180. Electrical connecting leads between the chips and the outside of the package are carried by insulating films located between the confronting chips. Coils located in the package create a bias magnetic field which is common to all chips. The coils for driving bubbles along the patterns are also common to all chips.