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| Number | Title | Issue Date |
| 5174024 | Tail rotor abrasive strip An improved rotor blade assembly and method of making same. The rotor blade includes protective layers which comprise a metal tail having a mesh bonded to its inside surface. The protective layer is pre-shaped and applied to the forward surface of the bla... | 12/29/1992 |
| 5103978 | Covers for videocassettes, videocassette jackets and similar like articles A foldup cover blank for placement about a jacket for holding a cassette. The jacket may include indicia which corresponds to a label which is applied to the jacket. The foldup cover blank may be provided as kit which includes a blank cassette.... | 04/14/1992 |
| 5095602 | Method of making an orthodontic bracket An orthodontic bracket and method of making same wherein the bracket has at least one tie wing integrally formed with a base portion. In one form of the invention the bracket is provided with at least one longitudinally extending groove which extends into... | 03/17/1992 |
| 5095747 | Cryogenic liquid level sensing apparatus Method and apparatus for measuring the level of a cryogenic liquid in a container using frequency pulses. The time interval between the transmitted and echoed pulse is measured and compared with predetermined store values which are characteristics of the ... | 03/17/1992 |
| 5092523 | Magnetic drive tank cleaning apparatus A fluid driven tank cleaning which includes a housing having a fluid receiving chamber, and inlet for connecting the receiving chamber to a source of fluid under pressure, and a secondary chamber separated from the receiving chamber by a common wall as a ... | 03/03/1992 |
| 5088753 | Three-point hitch which is convertible to a ball hitch A coupling device for converting a three-point hitch to either a ball or pin type hitch. The coupling device includes a main longitudinally extending support member having a forward end and a rearward end. The forward end has a ball or pin secured thereto... | 02/18/1992 |
| 5089315 | Glass slide A glass slide having a top surface and a bottom surface. The slide has at least one marking surface which has a first visual appearance when viewed from the top, and a second visual appearance when viewed from the bottom so as to allow the surface to be e... | 02/18/1992 |
| 5082691 | Scratch removal for plastic lenses A method of removing scratches and/or abrasions from the surface of a plastic lens which comprises providing a plastic lens which has one or more surface scratches and/or abrasions, applying a wax composition which contains a pigment to the surface of the... | 01/21/1992 |
| 5080098 | Non-invasive sensor A sensor for placement against the tissue of a living subject for the purpose of measuring a physiological quantity. The sensor includes a rigid housing having a recess chamber formed therein. A light source and sensor is mounted in a flexible mounting pa... | 01/14/1992 |
| 5080232 | Test tube rack and retainer A rack and retainer for use with an existing rack for holding test tubes and similar like articles. The rack or retainer is provided with a projecting member for firmly holding in position a test tube or similar like article placed therein.... | 01/14/1992 |
| 5076307 | Apparatus for spraying a liquid in a tank An apparatus for directing a liquid spray against the interior walls of a vessel. The apparatus includes a housing mounted to the vessel. The housing has a rotatably mounted pod disposed within an interior receiving chamber formed in the housing. A spray ... | 12/31/1991 |
| 5074784 | Orthodontic assembly An orthodontic tensioning device and method of assembly. The device comprises at least one elastic tensioning member and a second tensioning member made of a non-elastic material provided for cooperation with the elastic tensioning member so as to provide... | 12/24/1991 |
| 5074783 | Orthodontic bracket coated with water-soluble dye An orthodontic bracket, a method of manufacture and method of installing the bracket. The bracket is provided with visually enhanced reference edges for assisting in alignment of the bracket with respect to the tooth.... | 12/24/1991 |
| 5073696 | Electrically heated wax shaping tool A tool for shaping wax and wax-like substances has a handpiece containing an electrical connector for connection to a source of electrical power and an opening in which an electrically heated tool tip is removably mounted for the convenient interchange of... | 12/17/1991 |
| 5071344 | Orthodontic bracket An orthodontic bracket having a base portion for attachment to a tooth. The base portion is provided with a substantially monolayer of substantially uniform sized particles. The particles may have a size in the range of 5 to 200 micron.... | 12/10/1991 |
| 5069899 | Anti-thrombogenic, anti-microbial compositions containing heparin Anti-thrombobenic, anti-microbial compositions containing heparin reacted with quaternary ammonium components and bound with water-insoluble polymers are disclosed. Such compositions may also contain additional quaternary ammonium compounds not reacted wi... | 12/03/1991 |
| 5061448 | Incubator An apparatus for incubating and/or incubating shaking biological test specimens having a detachable autoclavable chamber. The main incubating chamber is provided with a support plate and diffuser plate for directing a controlled flow of heated air to the ... | 10/29/1991 |
| 5054647 | Aseptic orthodontic dispenser A dispenser for dispensing orthodontic O-rings comprises a main body portion having at least one storage and delivery chamber for holding a plurality of O-rings lying in a single plane and an outlet for allowing dispensing of O-rings. The main body is des... | 10/08/1991 |
| 5049068 | Method of using pulse radiation for bonding orthodentic brackets to teeth A method and apparatus for photopolymerizing a material using a pulsed radiation source, preferably in the visible spectrum.... | 09/17/1991 |
| 5044947 | Orthodontic archwire and method of moving teeth An orthodontic appliance made of a shape memory alloy comprising of a nickel, titanium, and copper composition which is formulated to provide the desired loading and unloading forces to the bracket.... | 09/03/1991 |
| 5044500 | Package for handling and transporting glass slides A container for handling and transporting glass slides. The container comprise a base support having at least one slide retention well for receiving a single glass slide and a cover for engagement with the base support. A projection is provided on the cov... | 09/03/1991 |
| 5043362 | Photopolymerizable compositions Water-processable screenprinting stencils and resists are based upon photopolymerizable systems in which the hydrogen donor compound is a modified polyvinylalcohol having pendant dialkylamino groups.... | 08/27/1991 |
| 5035319 | Jewelry storage case A jewelry case capable of holding large and/or small jewelry in an organized manner. The base receptacle is provided with at least one upwardly extending wall which forms a closed area for holding jewelry.... | 07/30/1991 |
| 5033450 | Radiant heater The present invention provides a high output radiant heater which uses a heat exchanger to obtain a variety of types of heat from a single power source. The heater is comprised of a housing; a combustion chamber in the housing, the combustion chamber defi... | 07/23/1991 |
| 5032081 | Glass orthodontic bracket An orthodontic bracket made of a partially crystallized glass material and method for making same. The orthodontic bracket has a thin compressive outer crystalline layer.... | 07/16/1991 |
| 5027905 | Fire sprinkler control apparatus A fire sprinkler control apparatus which is adapted for connection between a network of connecting fluid flow lines which terminate in sprinkler heads and a water supply. The apparatus consists of a conduit having a first end and a second end. The first e... | 07/02/1991 |
| 5012976 | Fluid driven tank cleaning apparatus A fluid device tank cleaning apparatus having a stationary housing, an outer Tee-housing which rotates about a first axis and nozzle assembly rotatably mounted to the Tee-housing for rotation about a second axis. The stationary housing is provided with pa... | 05/07/1991 |
| 5013238 | Aseptic orthodontic dispensing appliances Dispensing device for dispensing orthodontic O-rings wherein the O-rings are individually dispensed and are easily accessible.... | 05/07/1991 |
| 5005730 | Orthodontic dispenser An orthodontic dispensing device for dispensing orthodontic appliances formed in an elastomeric strip of material. The device comprises a housing having a discharge opening and a guide bar adjacent thereto. A drive reel is provided for moving the strip ar... | 04/09/1991 |
| 5004088 | Torsional vibration damper A rotary coupling device has a hub driving a hub flange formed with windows containing helical compression springs. Those springs are also contained in windows in disc-like side plates rivetted together to form a carrier for friction material. The springs... | 04/02/1991 |
| 5000754 | Fluid control electrosurgical method A control device for use with an electrical appliance. The device comprises a handpiece having at least one exhaust port which is connected to positive fluid pressure source. Blocking of the exhaust port will operate an appropriate switch means for contro... | 03/19/1991 |
| 4993263 | Plastic hydrometer A plastic hydrometer of the constant mass variable displacement type. The hydrometer includes a separate bulbous section, stem and cap. The bulbous section is a single piece molded part having an upper end which mates with the lower end of the extruded tu... | 02/19/1991 |
| 4993984 | Discretionary mosaic art kit A discretionary mosaic art kit which comprises a support board arranged so as to selectively accommodate individual pieces of design creating elements at a selected location on said board, and a plurality of design creating elements in the form of an equi... | 02/19/1991 |
| 4988946 | Paramagnetic gas measuring apparatus A gas testing apparatus comprising a body (13, 14) defining a chamber (7), means (2, 3) for creating a magnetic field within the chamber in a first direction, a test body (20), means (19) for mounting the test body (20) for rotation about an axis parallel... | 01/29/1991 |
| 4986121 | Apparatus for measuring the vertical motion of a floating platform An apparatus and method for measuring the vertical motion of a floating platform e.g. a survey vessel, caused by wave action. The apparatus includes a sensor having three accelerometers (11,12,13) arranged on mutually perpendicular axes (Ax,Ay,Az) so that... | 01/22/1991 |
| 4983120 | Method and apparatus for constructing an orthodontic appliance A method and apparatus for constructing an orthodontic applicance. The method includes the forming of a model of a patient's malocclusion. The teeth are separated and teeth are placed back in their malooclusion position on a base support. The teeth are mo... | 01/08/1991 |
| 4973357 | Ultrasonic machining tool for machining orthodontic brackets An orthodontic bracket and method of making same wherein the bracket has at least one tiewing integrally formed with a base portion. In one form of the invention the bracket is provbided with at least one longitudinally extending groove which extends into... | 11/27/1990 |
| 4961782 | Ultrasonic machining tool for machining orthodontic brackets An orthodontic bracket and method of making same wherein the bracket has at least one tiewing integrally formed with a base portion. In one form of the invention the bracket is provided with at least one longitudinally extending groove which extends into ... | 10/09/1990 |
| 4957550 | Ultrasonic machining tool for machining orthodontic brackets An orthodontic bracket and method of making same wherein the bracket has at least one tiewing integrally formed with a base portion. In one form of the invention the bracket is provided with at least one longitudinally extending groove which extends into ... | 09/18/1990 |
| 4955142 | Deck spacing tool A hand tool for use in placing deck boards on a support structure which is in the form of a unitized main body portion which comprises at least one substantially vertically extending blade having an outer exposed edge, the blade being suitable for placeme... | 09/11/1990 |
