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| Number | Title | Issue Date |
| 6486257 | Block copolymers of lactone and lactam, compatabilizing agents, and compatibilized polymer blends This invention relates to high molecular weight block copolymers of &3xb5;-caprolactone and ω-lauryl lactam prepared by sequential bulk polymerization using a mixture of at least one anionic polymerization initiator and optionally at least one co-initiat... | 11/26/2002 |
| 6460641 | Mid-wheel drive wheelchair with front wheel multiple bias suspension and anti-tip assembly A wheelchair has a plurality of central wheels which can be either power or manually driven, at least one rear caster wheel, and at least one resiliently biased ground engaging front wheel having a multiple suspension assembly. The wheelchair has improved... | 10/08/2002 |
| 6454182 | Snow making method and apparatus A snow making machine has at least one flexible hose assembly, with an inner hose connected to a water supply and an outer jacket to receive coolant from a chiller. Ice/snow formed in the inner hose is dislodged by inflating squasher hoses in the outer ja... | 09/24/2002 |
| 6452497 | Carrier identification device An identifying device for a carrier such as meat hook includes a transponder in a housing. The housing may be pinned in place, be pressed into a hole drilled in the meat hook, etc. so that it is held within the bounds of the carrier. Typically the housing... | 09/17/2002 |
| 6437044 | Living radical graft copolymerization of vinyl monomers initiated from the structural defects of polyvinylchloride A graft copolymer composition and the preparation of the composition by living radical polymerization is disclosed. The polymerization reaction can be initiated at active chlorine sites on the poly(vinyl chloride) backbone in conjunction with a transition... | 08/20/2002 |
| 6431534 | Clamping tool for aligning tubes A clamping tool which can generally be utilized to align and hold tubes to be welded. The clamping tool has a curvilinear body or frame similar to a traditional "C"-shaped clamp which is well known in the art. The tool of the present invention has at leas... | 08/13/2002 |
| 6422279 | Pneumatic run flat tire A run flat tire has a plurality of reinforcing wedges located in the tire sidewall with the hardness of each wedge generally diminishing in the radially inward direction of the sidewall. Since the bead filler is harder than the radial innermost wedge, the... | 07/23/2002 |
| 6403711 | Polysiloxane having a copolymer dispersed therein and sealants containing the same A high elongation, low 100% modulus composition comprises a copolymer dispersed in a continuous phase polysiloxane. The copolymer is made from high amounts of at least a monomer which is capable of forming a low Tg polymer and relatively low amounts of at... | 06/11/2002 |
| 6404941 | Optical multiple circuit breaker This invention relates to an optical multiple circuit breaker with (N) first optical inputs (E1) (n)), whereby these inputs can be switched optionally to (N) first or (N) second optical outputs (A1(n)) and/or (A2(n)). Light rays (LS1(n)) and LS2(n)) are r... | 06/11/2002 |
| 6394476 | Wheelchair seat having adjustable telescoping assembly The invention pertains to wheelchairs, and more particularly, to a wheelchair seat having a seat back member which substantially maintains a constant vertical angle when the seat bottom or rail is pivotably raised and lowered. Accordingly, the angle betwe... | 05/28/2002 |
| 6384147 | Poly(vinyl chloride)-g-poly(-methylstyrene) having a single glass transition temperature A grafted poly(vinyl chloride) having at least one pendant chain which comprises poly(-methylstyrene). The graft copolymer has only a single glass transition temperature of from about 100° C. to about 130° C. The poly(vinyl chloride)-g-poly( ... | 05/07/2002 |
| 6371504 | Fifth wheel Fifth wheels are used to establish an articulated connection between a truck tractor and a semi-trailer. They consist of a plate (1) which is attached to the truck tractor and generally has at least one arched slideway lining (4a,4b) acting as a bearing s... | 04/16/2002 |
| 6368489 | Copper electrowinning There is disclosed a method for copper electrowinning and a modified lead electrode for use in such method. The modified electrode is suitable for use as an oxygen anode in low current density, oxygen-evolving applications.... | 04/09/2002 |
| 6365069 | Process of injection molding highly conductive molding compounds and an apparatus for this process A technique and apparatus are disclosed for injection molding highly filled conductive resin compositions. These compositions include one or more of unsaturated polyester and vinyl ester resin; a copolymer having a terminal ethylene group; and at least ab... | 04/02/2002 |
| 6361768 | Hydrophilic ampholytic polymer A novel hydrophilic ampholytic polymer synthesized by reacting polymerizable amino and carboxy functional ethylenically unsaturated monomers, together with a non-ionic hydrophilic monomer, to provide a polymer having a glass transition temperature (T... | 03/26/2002 |
| 6357776 | Constant center of gravity tiltable chair of a wheelchair A wheelchair has a constant center of gravity tilt assembly which can be connected to any type of frame structure. A chair is pivotally attached to the tilt assembly which includes a slidable guide member. The guide member is slidably attached to a guide ... | 03/19/2002 |
| 6352285 | Roll bar protection system for motor vehicles A roll bar protection system for motor vehicles comprising an outer box profile forming a case for the components of the roll bar protection system, being mounted firmly on the vehicle, an inner box profile, able to move in the outer box profile via guide... | 03/05/2002 |
| 6352275 | Wheelchair A wheelchair includes two side frames (1L and 1R) consisting of respective lower frame parts (1'L and 1'R) and respective upper frame parts (1"L and 1"R). Each side frame has transverse, horizontal, tilt pivot axis (3) between its upper and lower parts. F... | 03/05/2002 |
| 6350792 | Radiation-curable compositions and cured articles A radiation-curable composition in a liquid or solid form comprises at least one solid, non-crystalline radiation-transmissible material, dispersed in at least one cationic-curable or free-radical curable composition or mixture thereof. The solid, non-cry... | 02/26/2002 |
| 6345132 | Optical switching element and switching arrangement The invention relates to an optical switching element for altering the propagation direction of at least one light beam, comprising a transparent base body (21), said base body being provided with a recess (20) for forming at least one boundary surface (1... | 02/05/2002 |
| 6314977 | Adjustable height handgrip for a crutch An orthopedic crutch is provided which has a parallel vertical support members which oppose a central longitudinal axis of the crutch. The support member include apertures on the opposing surfaces to form parallel pairs of apertures. An adjustable hand cr... | 11/13/2001 |
| 6303724 | Polycyclic copolymer compositions Copolymers containing repeating units polymerized from at least one polycyclic monomer and at least one acrylic monomer are disclosed. The copolymer is formed by addition polymerization in the presence of a Group VIII transition metal catalyst. The copoly... | 10/16/2001 |
| 6302107 | Apparatus and method for forming oxygen-enriched gas and compression thereof for high-pressure mobile storage utilization An oxygen concentrator is utilized in combination with a compressor to provide a highly enriched and compressed oxygen gas in a mobile container such as a gas cylinder. The combination and method of production provides for the facile preparation of an enr... | 10/16/2001 |
| 6296278 | Rollover protection apparatus The invention addresses a rollover protection apparatus for motor vehicles with a protection system assigned to each vehicle seat. The invention provides that the profile unit is designed in the form of a box profile rigidified against bending with guide ... | 10/02/2001 |
| 6279591 | Universal platform support for a walker A universal platform support assembly (10) provides for vertical and horizontal adjustment to secure the assembly to a wide array of walker (W) styles and sizes. A forearm receiving member (20) can be pivoted for comfort of the user and a push handle (24)... | 08/28/2001 |
| 6275291 | Micropolarimeter and ellipsometer A micropolarimeter and ellipsometer for obtaining complete optical information of superficially illuminated specimens. A compact construction is designed to facilitate their use. To obtain the simultaneous surface measurement of all optical information fr... | 08/14/2001 |
| 6271297 | General approach to nanocomposite preparation A blend of a polymer, swelling agent, and a sheet silicate and/or sheet silicone filler is disclosed. The swelling agent makes it possible to intercalate the sheet silicate and/or sheet silicone with a variety of different polymers. The swelling agent is ... | 08/07/2001 |
| 6268915 | Micropolarimeter The invention concerns a micropolarimeter comprising an analyzer (1) and a detector (10) located past the analyzer in the direction of radiation and presenting a number of segments ND which is higher than or equal to 3 (11). The invention seeks... | 07/31/2001 |
| 6256429 | Matrix switch The invention relates to a matrix switch for optical fibers, exhibiting slides (S1(n)) arranged in lines, to each of which an input optical fiber (LWL1(n)) is fixed, and slides (S2(m)) arranged in columns to each of which an output optical fiber (LWL2(m))... | 07/03/2001 |
| 6230408 | Process for producing micro-heat exchangers A method for fabrication of micro heat exchangers, which enable an efficient heat transfer between two flowing media. In a first processing step, a plastic layer is structurized by means of photolithography, x-ray deep lithography, or laser ablation. This... | 05/15/2001 |
| 6225440 | Cationic ring-opening polymerization of benzoxazines Cationic polymerization of mono and polyfunctional benzoxazine monomers is described. The chemical structure of the polymers from cationic polymerization of benzoxazine monomers has been identified and distinguished from thermally polymerized products fro... | 05/01/2001 |
| 6216374 | Banner with improved supplement signage pocket A method and product resulting from employing radio frequency electric energy for heat-sealing a thermoplastic pouch to a thermoplastic sheet or banner to provide a banner with an improved supplemental signage pocket affixed thereto. The components of the... | 04/17/2001 |
| 6206393 | Constant center of gravity tilt seat of a wheelchair A tilt seat of a wheelchair is operatively connected to a wheel-chair frame through an archial support member and through a gear rack such that as the seat is tilted, the center of gravity of a person seated in the wheelchair is substantially maintained. ... | 03/27/2001 |
| 6207786 | Ternary systems of benzoxazine, epoxy, and phenolic resins Low viscosity ternary mixtures of benzoxazine, epoxy and phenolic resins have been developed. The blends render homogeneous and void free cured specimen with a wide range of properties. Melt viscosity values as low as 0.3 Pa.s at 100° C. can be achieved.... | 03/27/2001 |
| 6202773 | Motorized wheelchairs A motorized wheelchair is advantageously provided with a rate-of-turn feedback sensor and with forward/reverse motion, lateral motion, and vertical motion acceleration feedback sensors that are integrated into a closed-loop wheelchair servo control system... | 03/20/2001 |
| 6200502 | Process for the production of optical components with coupled optical waveguides and optical components produced by said method The invention concerns a method for the fabrication of an optical component with at least one fiber taper receptacle and a coupled fiber taper For this, a microstructure body is first made by coating a substrate with resist, the height of the resist dimin... | 03/13/2001 |
| 6182996 | Fifth wheel A fifth wheel is described with a coupling plate having elements for fastening to the vehicle frame. It is supposed to facilitate the mounting on the vehicle frame, while it should be possible to equalize manufacturing tolerances of the frame in simple fa... | 02/06/2001 |
| 6180203 | Rotational moulding process A method for rotational molding of articles, including the step of rotationally molding a mixture of particulate plastics material comprising at least one thermoplastics material having a first particle size and a second thermoplastics material having a l... | 01/30/2001 |
| 6160079 | Activated arylamine-based polybenzoxazines Arylamines with electron donating groups such as alkyl and alkoxy groups in the meta position on the aromatic ring change the polymerization temperature of the benzoxazine prepared therefrom and offer an opportunity for an additional crosslinking site (th... | 12/12/2000 |
| 6152134 | Oxygen conserving device A portable oxygen conserving apparatus to deliver oxygen to a patient generally only during inhalation. The device includes an inlet connected to an oxygen source, an outlet which communicates oxygen to a patient, a mass-flow sensor connected to the outle... | 11/28/2000 |
