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| Number | Title | Issue Date |
| 5009660 | Gas purging, eye fixation hand piece A gas purging, eye fixation hand piece (10) includes a vacuum ring (15) evacuated by a suction line (21) through a handle (20) via which a purging gas is delivered to an array of purging nozzles (36-38) aimed into the vacuum ring from around an inner peri... | 04/23/1991 |
| 4991947 | Two optomechanically coupled surgical microscopes with coaxial illumination A microscope having two optomechanically coupled observation barrels to permit simultaneous use by two individuals. While each barrel is provided with its own eyepieces and its own magnification system, they share a common optical axis including a single ... | 02/12/1991 |
| 4971645 | Method of fully cushioning pull strap handle A pull strap handle (10) for an automotive interior is fully cushioned by forming a foamed resin cushion (20) that is fit around and over both faces of a strap (15) for the handle. A backing bar (30) is then positioned to extend over cushion (20) and be s... | 11/20/1990 |
| 4971028 | Solar heat collector and insulation panel construction Several alternative forms of construction are disclosed, for enhancing build-up of solar-generated heat into a building or part thereof, while the sun is shining or the outside temperature is relatively hot, and for minimizing heat loss from the building ... | 11/20/1990 |
| 4958920 | Process and apparatus for the automatic focusing of microscopes Fast and versatile autofocusing for microscopes is achieved by the interaction of two known systems: a first, active autofocusing system (12) which projects at least one light dot on the object and develops a focusing signal dependent upon the character o... | 09/25/1990 |
| 4959552 | Microscope arranged for measuring microscopic structures A microscope (1) arranged for measuring microscopic structures uses punctiform bundles of rays from a point source (31, 34) of light focused by an optical system on a structure to be measured so that a photoelectric detector (15) can receive the ray bundl... | 09/25/1990 |
| 4953962 | Microscope objective for accommodating different cover-glass thicknesses A microscope objective adjustable for different thicknesses of cover-glass includes a second lens (L2 and L3) movable between a first lens (L1) and a third lens (L4) and a fourth lens (L5) movable with the second lens, but in an opposite direction. A ring... | 09/04/1990 |
| 4953188 | Method and device for producing phase-contrast images For producing phase-contrast images with a microscope which scans the object point-by-point with a beam of illuminating radiation, the illuminating radiation is focused by an objective (31, 32) including a phase-shifting element (33) of preselective geome... | 08/28/1990 |
| 4948357 | Draped parison blow molding apparatus A double-walled plastic box (20) is molded from a single parison (50) in an unlimited depth by closing the bottom of parison (50) and draping it downwardly over a core (60) so that a leading part of the parison forms an inside wall of the box and a follow... | 08/14/1990 |
| 4941285 | Lift-off shoe system for tilt window A lift-off shoe system uses non-locking sash support shoes (30) movable vertically and spring biased upwardly in a tilt window. Sash pins (25) have heads (26) that interlock with open top slots (31) in sash shoes (30) so that the sash pins are removable f... | 07/17/1990 |
| 4936673 | Diffusion platelet in combination with a slit lamp This invention relates to slit lamps of the type incorporated in instruments used to illuminate eyes for ophthalmic examination and/or photography; and, more particularly, it relates to controlling the illumination produced by such slit lamps.... | 06/26/1990 |
| 4934086 | Recoil spring guide mounting for laser sight A laser sight for a firearm (10) having a recoil spring guide (15) mounts components on the spring guide so that a light beam (18) is directed along the axis of the spring guide. This automatically makes light beam (18) parallel with the barrel (11) of fi... | 06/19/1990 |
| 4926712 | Worm wheel and method of hobbing same An hourglass worm wheel and method of hobbing same wherein the finished worm wheel (70) includes a mid zone (B) where the root surface and outside helix are cylindrical for a predetermined distance along the axis of the worm wheel. The method forming the ... | 05/22/1990 |
| 4924607 | Threaded wedge retainer for top lift A releasable retainer for a replaceable top lift (30) of a shoe heel (10) includes a threaded wedge (25) threaded into a retainer hole (18) that intersects a mounting hole (15) for the top lift. There, a dowel rod or tube (20) holding the top lift at its ... | 05/15/1990 |
| 4913599 | Drill for flexographic plates and negatives A drill (10) for flexographic plates and negatives includes a table (15) movable in a Y direction under a drill bar (30), and a pin bar (25) movable in an X direction on the table so that negatives can be supported on the table, moved to an appropriate po... | 04/03/1990 |
| 4902547 | Reinforcing hang tabs Hand tabs (25) are reinforced by adhering a reinforcing band (14) to a head region (22) of a tab strip (11) while the adhesive coated surface of the tab strip is separated from a release liner (13). Tab strip (11), with its reinforcing band (14), is then ... | 02/20/1990 |
| 4902203 | Housing for dual outlet, dual rotor blower A housing (10) encloses a dual outlet, dual rotor blower between two cast parts (11 and 12) having internal partitions (31) dividing a volute region (30) of the housing. Flanges (32) on opposite ends of the motor (15) nest between the partitions for mount... | 02/20/1990 |
| 4898707 | Method and apparatus for gusseted parison draping A blow molding parison (10) being draped around a generally rectangular mold part (12) is spread from its extruded cylindrical shape into a generally rectangular shape (14), as it descends from an extrusion head (11). Before the open bottom (20) of the pa... | 02/06/1990 |
| 4895052 | Steer-driven reduction drive system Differential reduction drives on opposite sides of a vehicle are steer driven by a pair of worm gears (110) meshed with worm wheels (111) inputting steering torque into each reduction drive. The worm gears are rotationally interconnected so that the steer... | 01/23/1990 |
| 4890809 | Folded hang tab A hang tab (10) is folded on itself, and its hanging region (15) is adhered to its stick-on region (20) so that it lies flat against a package (30) during shipment. The adhesive (25) between the hanging region and the stick-on region is arranged so that t... | 01/02/1990 |
| 4890511 | Friction reduction in a differential assembly A differential gear assembly for vehicles is provided between a pair of drive axles (12), (14) are received in bores (10) formed in the sides of a differential housing (4), and wherein axially aligned worm or side gears (18, 18') are coupled to each axle ... | 01/02/1990 |
| 4889426 | Microscope photometer tube A photometer tube for microscopes is provided with a device by means of which the measurement field diaphragm of the photometer is superimposed on the intermediate image of the object in the binocular tube. For the reflecting-back of the measurement field... | 12/26/1989 |
| 4887594 | Vibratory medicator A vibratory medicator combines a medication dispenser (35, 40, 45) with a vibrator (10) containing a motor-driven eccentric mass (13). The vibrator body (15) can be either hand held or strapped in place against a skin region to be treated; and when body (... | 12/19/1989 |
| 4885913 | Open cycle latent heat engine An open cycle latent heat engine has an elevator (10) rising preferably several thousand feet from a lower level entrance (12) to a higher level exit (13). Warm water vapor is input at the lower level of the elevator passageway (10) to cause moist air to ... | 12/12/1989 |
| 4885958 | Cam action pin locking means for a differential A differential gear assembly of the type including transfer gears for dividing torque between two axles. The transfer gears are each mounted on a pin which is journaled in housing by aligned bores. Cam action means are provided which restricts rotation of... | 12/12/1989 |
| 4881265 | Apex loudspeaker A loudspeaker (10) has speaker mounting walls (11 and 12) joined at an apex angle (15) of 70° or less, with a pair of tweeters (20) mounted as close to the apex as possible and a pair of woofers (25), arranged below the tweeters, and also mounted as clos... | 11/14/1989 |
| 4878349 | Atmospheric latent heat engine An atmospheric latent heat engine has a passageway extending from a converging entrance nozzle upward to an exit at a substantially higher elevation. Turbo generators, arranged within the passageway, can be powered to start up an air flow through the pass... | 11/07/1989 |
| 4878757 | Tube for a microscope A microscope tube contains prisms mounted on a prism carriage switchable between a position for visual observation of a specimen and a position for photometry or photography of the specimen. A diaphragm (6) mounted on and movable with the carriage has a b... | 11/07/1989 |
| 4870674 | X-ray microscope An x-ray microscope in which the object is illuminated coherently or partially coherently via a condenser with quasi-monochromatic x-radiation and is imaged enlarged in the image plane by a high resolution x-ray objective. To obtain the highest possible i... | 09/26/1989 |
| 4863249 | Catadioptric objective system for imaging a diode line For the imaging of a diode line, a catadioptric objective system is provided. The diode line to be imaged is located between a concave mirror of exactly or approximately spherical shape (possibly with aspherical correction deviating from the theoretical s... | 09/05/1989 |
| 4863128 | Liner reinforced hang tab Hanging regions (22) of hang tags (25) are reinforced by a permanently bonded portion of a liner strip (11), an uncut portion of which releasably carries a row of die cut hang tabs. Liner strip (11) has a release coating on edge regions (16) where stick-o... | 09/05/1989 |
| 4861997 | Stereoscopic thermographic apparatus A compact stereoscopic thermographic IR viewing device is disclosed, which comprises a thermographic apparatus in front of which two binocular telescopes are arranged. One of the two telescopes images an IR scene in two intermediate images which differ sl... | 08/29/1989 |
| 4854558 | Sound deadener for window counterbalance spring A window counterbalance spring (10, 30) enclosed within a spring cover (35) or tube (25) is sound deadened against rattling by having its outer surface (16) coated with a hot melt adhesive (11). Hot melt (11) is preferably sprayed on outer surface (16) of... | 08/08/1989 |
| 4846662 | Reverse parison draping for blow molding A double-walled plastic box (20) is molded from a single parison (50) in an unlimited depth by closing and holding a bottom region of the parison at the bottom of a cavity (30), bringing together parts of a core (40) above the cavity to close off an upper... | 07/11/1989 |
| 4837976 | Window balance spring cover friction system An extruded resin spring cover (12) extending for the full length of a resin jamb liner (10) and divided into vertical halves (14) by a longitudinal slit (15) is involved in a friction system that prevents hop or drop of a sash (13) counterbalanced betwee... | 06/13/1989 |
| 4833752 | Vacuum mop head A vacuum mop head having a scrubbing pad, a front squeegee in a front vacuum pickup slot, and a rear squeegee in a rear vacuum pickup slot has a vacuum outlet divided effectively between the two pickup slots. Side walls of a vacuum passageway extend downw... | 05/30/1989 |
| 4829897 | Automatic cleaner for offset printing blanket An improved automatic blanket wash system for offset printing wherein the washing medium is a water-in-oil emulsion containing 5-35 percent by weight water and 65-95 percent by weight of a water insoluble phase that contains certain hydrocarbons in specif... | 05/16/1989 |
| 4827590 | Method of making of header for automotive air conditioner evaporator A header for an automotive air conditioner evaporator is made from a cut-off length of a cylindrical aluminum tube (10), one end of which is clamped on a cylindrical arbor (11) so that a header region (20) of the tube can be pressed into a generally recta... | 05/09/1989 |
| 4828786 | Draped parison blow molding A double-walled plastic box 20 is molded from a single parison 50 in an unlimited depth by closing the bottom of parison 50 and draping it downwardly over a core 60 so that a leading part of the parison forms an inside wall of the box and a following part... | 05/09/1989 |
| 4825558 | Pin bar for mounting flexographic printing plates A pin bar 10 for mounting flexographic printing plates 25 on print cylinders 20 is formed as an angle bar 11 having two pairs of bearing regions spaced apart on two parallel lines near the bar edges 14 so that the bearing regions can all engage the cylind... | 05/02/1989 |
