Abstract: A dental implant anchor includes a body portion having a first external wall portion carrying one or more circumferential projections separated by circumferential grooves and, below, a second external wall portion carrying threads. The implant can include a head portion with a smooth external wall; a through-hole and an apical hole passing through the bottom of the implant; and internal structure for engaging a tool for inserting the implant in a passage formed in bone tissue. This internal structure can be in a top portion, or in an internal passage in the body portion of the implant. The method for forming a passage in bone tissue to receive the implant includes forming a passage having a base with a diameter suited to self-tapping of the threaded part of the implant, and, above the base, a larger-diameter section to engage frictionally the circumferential projections.

Abstract: A substantially cylindrically-shaped dental implant includes on its outer surface one or more longitudinally-extending grooves and, near the base of the implant, one or more transversely-extending openings that communicate with the grooves and with a chamber internal to the implant. The chamber also communicates through an upwardly-extending passage with an apical opening at the base of the implant to permit tissue, fluids and debris to escape from a jawbone opening formed to receive the implant.

Abstract: A tiltable, rotatable, adjustable, castable insert adapted for use with dental implants includes two parts: first, a shaft with a receptacle attached to the shaft; second, within the receptacle, a tiltable, rotatable, adjustable prosthesis connector.

Abstract: A handle adapted for engaging, holding and delivering a dental implant to a surgical site, and for holding a dental implant within a package for the implant comprises a body section with a middle portion adapted to fit into a container for the implant; a flange portion connected to the middle portion and adapted to engage an opening in the implant container; a first end portion connected to the middle portion and including an implant-engaging configuration internal or external to the handle; and a second end portion connected to the flange and including a configuration suitable for engaging an implant-insertion tool. The body portion includes an internal passage adapted to receive a shaft that includes a portion for securing an implant to the handle at the implant-engaging configuration.

Abstract: A dental implant anchor includes a body portion having a first external wall portion carrying one or more circumferential projections separated by circumferential grooves and, below, a second external wall portion carrying threads. In some forms, the anchor also includes one or more longitudinally-oriented grooves on its exterior wall. The grooves extend across, and through the circumferential projections. The implant can include a head portion with a smooth external wall; a through-hole and an apical hole passing through the bottom of the implant; and internal structure for engaging a tool for inserting the implant in a passage formed in bone tissue. This internal structure can be in a top portion, or in an internal passage in the body portion of the implant.

Abstract: A pressure sensor comprising a first housing piece defining a lumen therethrough and an opening to said lumen to provide communication between said lumen and a sensing element, said first housing piece having a first surface surrounding said opening, a second housing piece shaped for mating with said first housing piece and providing, with said first housing piece, a region for containing a sensing element in position to communicate with said lumen via said opening, said second housing piece having a second surface that surrounds said region and faces and conforms to the shape of said first surface, said second housing piece including an end of an electrical wire and wire contacts that are electrically connected to said wire, having portions at or near said second surface, and are spaced from each other, a sensing element in said region in communication with said flowpath via said opening, said sensing element including sensor contacts aligned with respective wire contacts, and an elastomeric sheet providing

Abstract: A nested fiberglass structure (10) comprises a plurality of strips (66) each in the shape of a sinusoidal wave (20). The waves (20) have peaks (22) and valleys (24) which have equal amplitudes about a central axis (26). A positioning string (32) is placed over the peaks (22) and into the valleys (24) to provide a guide for the depth of penetration of adjacent strips during nesting of the strips (66). The structure (10) may be formed on an apparatus for manufacturing (46) which forms a continuous web (48) into the strips (66) and nests the strips (66) into the structure (10). The structure (10) may then be wound onto a reel (154) for fabrication into a cylindrical structure (34). The apparatus (136) spirally winds the nested structure (10) around a mandrel (182) to form the cylindrical structure (34).

Abstract: A solid state semiconductor power switch for controlling the application of AC power to a load wherein the power switch employs momentary ON/OFF switches for activating the power switch, and wherein additional circuit means is provided to preserve the ON/OFF condition or state of the power switch during a power-down situation such that upon restoration of the AC power the power switch can be caused to assume the same ON or OFF state it was in just prior to the power-down situation.

Abstract: A wall-mounted housing encloses a blower, an antiseptic solution holder, an atomizer pump, and a timer-switch assembly. A front-mounted actuator bar initiates a timer which starts the blower and pump. The atomizer delivers antiseptic solution into the blower discharge for delivery of a vapor mist through the nozzle to the hands of the user for a pre-determined period of time established by the timer. Then the atomizer is shut down by the timer and the blower continues to operate for another predetermined period to dry the hands.

Abstract: A mixture of waste, essentially cellulosic material and a fire proofing solution can be used to make building materials with exceptional qualities. These qualities include fire proofing, vermin proofing, water proofing and excellent insulative values, for example. Additionally, this process represents an excellent method for recycle of these waste materials. A sheetrock-like or wall-board material can be made therefrom, one which can be nailed, screwed, drilled and fastened without causing serious damage to the surface or the element itself.

Abstract: A towel dispenser contains two rolls of paper. A bar on the front, when pushed, delivers a short length of wet towel and a short length of dry towel, simultaneously. It also guides the towel dispensed from one of the rolls through a bath of antiseptic hand-cleansing solution. It also releases the system to enable pulling an additional length of toweling from each of the two rolls. Upon release, either towel can be pulled out further manually to produce about ten more inches of towel. The toweling is delivered from both rolls simultaneously, but the towels are used in sequence, the wet towel first and the dry towel next.

Abstract: A screw-type dental implant anchor includes an externally-threaded body portion having internal structure for engaging an insertion tool. The body portion can be joined to a top portion having an unthreaded exterior wall. This internal is inside a top portion or inside the body portion of the anchor. The top portion is open, preferably chamfered at its upper end, and in registration with an internally-threaded shaft inside the body portion of the anchor that extends from a plane just below the head portion downwardly a substantial distance inside the body portion. The distal end of the anchor includes a through hole extending from one side of the body portion to the other, and an opening at the bottom of the body portion extending upwardly inside the body portion a distance sufficient to permit bone and associated tissue to grow into and through these openings and to permit blood tissue to escape.

Abstract: A novel, metal protective solution is described. This solution of two parts, the first part being a mixture of one aqueous potassium silicate and two aqueous sodium silicate solutions and the second part comprising approximately equal amounts of acetic acid, zinc oxide, copper sulfate, clay and sodium bicarbonate, is stable, relatively inert and has a long shelf-life. It may be applied to metal surfaces to prevent corrosion and rust from forming thereon.

Abstract: An apparatus is presented for printing material on an extruded plastic tubing. An extruder forms the plastic tubing of the desired diameter and thickness. The tubing is then drawn through a cooling bath by a pulling mechanism, and cut into desired lengths. The tubing may be dried after the cooling process, and an ink jet printer is utilized to print on the tubing as it is being drawn to be cut. A computer controls the printing process in correlation with the tubing cutter to provide a print signal to the printer in accordance with the desired lengths of tubing. The print heads of the printer are also three-dimensionally adjustable so as to center the printed material on the desired size and length of tubing to be cut.

Abstract: A bore hole scanner includes a light projecting device for projecting a light beam toward a bore hole wall surface. A conical mirror is arranged coaxially with respect to a sonde for condensing light reflected from the bore hole wall surface. An image forming device is arranged in front of the conical mirror. A photoelectric transducing device converts a light signal into an electric signal. Optical fibers introduce an image, which is formed on concentric circles by the image forming device to the photoelectric transducing device. A data processing device scans and extracts signals from the photoelectric transducing device and generates and processes image data indicative of the bore hole wall surface. A sonde position detecting device detects the orientation and position of the sonde. Rotating portions are dispensed with by using the conical mirror and optical fibers, and a linear CCD array can be used as the photoelectric transducing device.

Abstract: A novel and stable coating solution for fireproofing building materials is described. This solution is easy to apply and will reduce the propensity of burnable materials to sustain combustion. Alternatively, the solution may be used as a part of the solution used to cast paper on the surface of paper containing wallboard and the like. The solution finds particular use in fireproofing of wall boards and the like.

Abstract: A self-closing invisible hinge for returning a door to its closed position rom its open position including a self-closing structure in which the closing force can be selectively adjusted externally at the hinge and in which the self-closing structure is compact.

Abstract: A drywall frame compression anchor assembly for use with a sectional metal frame to be mounted in an opening of a wall comprises a restraining bracket having a pair of space support legs and a jamb anchor. The jamb anchor includes a hat section havng a generally U-shaped center portion and a pair of opositely extending wings projecting therefrom. The jamb anchor is moveably mounted between the supports of the spaced support legs to engage the surface of the opening.

Abstract: An optical head (12) is rotated while a sonde (11) is moved up or down within a bore hole (22), and a beam of light from a light source (22) is projected toward the wall of the bore hole (22) via a lens (21), slit (22), half-mirror (19), mirror (15) and lens (14). Light reflected from the bore hole wall is extracted from the half-mirror (19) via a slit (17) and a photoelectric transducer (18) so that the bore hole wall may be continuously observed. By separating the reflected light into spectral components and processing them, color tone logging and other observations can be performed. The orientation of the sonde (11) is sensed by an azimuth finder (23) and rotation gauge (24), and the inclination of the sonde (11) is sensed by a dipmeter (25). Displacement of the sonde accompanying each unit length of up-or-down movement of the sonde (11) is calculated and the displacements are integrated to obtain the position being observed by the sonde.

Abstract: A thermoplastic, one-piece coping insert adapted for use with a dental implant anchoring means includes a shaft that fits into an opening in a dental implant, an abutment head joined to the shaft and adapted to conform to, and fit smoothly on, or in the top surface of the dental implant, a bendable restriction or groove to facilitate preferential bending of the insert at the restriction when the insert is heated to the softening temperature of a thermoplastic, and a relatively unbendable post atop the restriction for receiving and supporting a dental prosthesis such as one or more prosthetic teeth.