...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5547770 | Multiplex aluminide-silicide coating A silicon-enriched aluminide coating for a superalloy article has a composite microstructure including a plurality of bands of silicon rich phases (S1, S2, S3) and a plurality of bands of aluminum rich phases (A1 | 08/20/1996 |
| 5545861 | Membranous-vibration sound absorbing materials The present invention provides a membranous-vibration sound absorbing material which can achieve not only good sound absorbing characteristics, workability and strength but also transparency. The membranous-vibration sound absorbing material can also achi... | 08/13/1996 |
| 5541232 | Treatment of multidrug resistant diseases A method and composition for treating multidrug resistance in a mammal, in which the composition includes NDGA or an analog of NDGA in accordance with the following formula: ##STR1## wherein R1 and R2 are independently H, lower ... | 07/30/1996 |
| 5538809 | Automatic coupling system for traction batteries A coupling for connecting a battery to a battery charger of a replacement station for electric road vehicles equipped with exchangeable batteries receivable upon a roller conveyor associated with the replacement station, or to a battery charger of the own... | 07/23/1996 |
| 5536485 | Diamond sinter, high-pressure phase boron nitride sinter, and processes for producing those sinters A powder of diamond or high-pressure phase boron nitride core particles charged into a coating space as it is dispersed, and a precursor of a coat forming substance allowed to contact and/or impinge against the particles in the powder of core particles so... | 07/16/1996 |
| 5526119 | Apparatus & method for inspecting articles such as agricultural produce A complete sorting system is provided herein including a sequence of interlacing cable conveyors for conveying objects to be sorted, such as apples or other agricultural produce, from bulk storage at the input to the system, through the system, and along ... | 06/11/1996 |
| 5518178 | Thermal spray nozzle method for producing rough thermal spray coatings and coatings produced Known thermal spray apparatus are modified to achieve rough thermal spray coatings. Thermal spray apparatus operate to develop a plasma stream for introduction to a nozzle, for eventual application to the surface of a substrate. Upon entering the nozzle, ... | 05/21/1996 |
| 5518121 | Method for automated mail extraction and remittance processing In a method for the automated processing of bulk mail, envelopes are transferred to a receiving apparatus in bulk fashion (from incoming mail trays or the like) for the extraction of documents contained by the envelopes, and the extracted documents are de... | 05/21/1996 |
| 5517235 | Method and apparatus for inspecting printed circuit boards at different magnifications A printed circuit board inspection system acquires images for purposes of inspection from viewing fields defined along the surface of the printed circuit board to be inspected which can be varied in size to accommodate the density and tolerance of compone... | 05/14/1996 |
| 5514495 | Negative electrode for gastight alkaline storage batteries having a carbon-black-containing gas-consumption layer A carbon-black-containing gas-consuming layer on the surface of a negative electrode is produced from a mixture of an aqueous carbon black dispersion and an aqueous PTFE dispersion, both of which contain a surfactant of the same type (either cationic, ani... | 05/07/1996 |
| 5514488 | Electrochemical secondary cell An Li/LiMn2 O4 secondary cell employing a SWING system (i.e., of the "rocking chair cell" type) includes a positive electrode formed as a metal gauze-reinforced, rolled electrode, and a negative electrode formed by impregnating a nic... | 05/07/1996 |
| 5507638 | Reward-based apparatus for the rehabilitation of labiolingual functions An intraoral apparatus for the treatment of labiolingual dysfunctions which includes a removable support plate equipped with dental anchoring hooks and an anterior vestibular arc. The apparatus includes an active device, and attachment members and stimula... | 04/16/1996 |
| 5503949 | Plate block for lead batteries In a plate block for lead batteries having plates of one polarity with plate lugs which are thicker than the plate lugs of the plates of the other polarity, an equalization of the volumes and of the areas of the two lug types is achieved by providing the ... | 04/02/1996 |
| 5502379 | Sensor for measuring the swing of a cable including a crown with permanent magnets secured to the cable A sensor for measuring the swing of a cable or load includes a crown which creates a stable magnetic field, and a fixed portion for detecting movement of the crown, and the cable or load to which the crown is attached. The crown is secured to the cable an... | 03/26/1996 |
| 5500309 | Ni/metal hydride accumulator The positive electrode of a Ni/metal hydride accumulator is formed from a mass mixture of Ni(OH)2 and an oxidation-resistant graphite. The stable graphite is notable for a high degree of crystallinity and a low ash content. In conventional Ni/m... | 03/19/1996 |
| 5496664 | Process for producing a positive electrode for lithium secondary batteries An active material for a positive electrode for lithium secondary batteries and composed of a lithium-manganese oxide (Lix Mn2 O4) with a spinel structure is produced by mixing manganese dioxide with lithium formate (HCOOL... | 03/05/1996 |
| 5492810 | DNA silver staining A method for visualizing nucleic acids in a polyacrylamide gel. The method comprises fixing the nucleic acids with 10% acetic acid for about 20 minutes, washing the gel multiple times with water for about 2 minutes, impregnating the gel with silver nitrat... | 02/20/1996 |
| 5487893 | Antiviral use of a 2,6-di-t-butylphenol compound substituted in 4 position against herpes viruses and papillomaviruses A therapeutical use is provided for cornpounds selected from the group which consists of (a) phenols of formula (I): ##STR1## wherein R is a C1-12 alkyl group, a C2-12 alkenyl group, a C2-12 alkynyl group, a C1-12 alkoxy group, a formyl group, a C2-1... | 01/30/1996 |
| 5486433 | Button cell A button cell containing electrodes having a polygonal shape, preferably square or hexagonal, in a flat housing is advantageous when compared to such cells having conventional round pressed powder electrodes. The electrodes can be cut from a continuously ... | 01/23/1996 |
| 5486411 | Electrically charged, consolidated non-woven webs A consolidated non-woven web made by post-treating a precursor nonwoven web including consolidating the web laterally by drawing, thereby reducing the maximum pore size measure of the web and improving the filtration efficiency of the web, and subjecting ... | 01/23/1996 |
| 5478814 | Hemorrhoidal, other compositions and methods of treatment Hemorrhoidal compositions containing disaccharide polysulfate-aluminum compounds such as sucralfate, above or in combination with other hemorrhoidal products, as an agent effective for alleviating the symptoms of anorectal disease when topically applied t... | 12/26/1995 |
| 5478413 | Environmentally friendly coating compositions An aqueous phosphoric bonding solution and coating composition slurry which are environmentally friendly in that they are generally free of molybdate or chromium. Yet the solution is stable with respect to inorganic metal particles, especially aluminum wh... | 12/26/1995 |
| 5470971 | Stress-induced proteins, genes coding therefor, transformed cells of organisms, methods and applications Genes (and portions thereof) which are stress-inducible, e.g., by cold-shock which encode useful proteins. The proteins contribute to confer thermo-tolerance and/or contribute to confer low temperature tolerance to organisms, like eucaryotes or procaryote... | 11/28/1995 |
| 5468486 | Vaccine containing a protein alkaloid conjugate for the treatment of fescue toxicosis A method for the treatment of the symptoms of fescue toxicosis in mammals comprising injecting a subject mammal with a vaccine which includes from about 5 μg to about 1 mg of a protein-alkaloid conjugate per mL of a physiologically acceptable carrier. Th... | 11/21/1995 |
| 5464295 | Articulated frame element for modular furniture, and hinge for articulating two frame elements together A hinge for articulatable elements, particularly for a frame element of modular furniture, includes two articulation elements of identical semi-S-shaped profile placed in converse relative position to one another. The respective external lateral surfaces ... | 11/07/1995 |
| 5460730 | Process and apparatus for treating wastewater from lead battery production Lead oxide is used for neutralizing the sulfuric acid wastewater received from washing charged (formed) electrodes during lead battery production. The neutralization product, including lead sulfate and excess lead oxide, is returned directly to production... | 10/24/1995 |
| 5460273 | Apparatus for the automated processing of bulk mail having varied characteristics An apparatus for the automated processing of bulk mail which incorporates a number of operating stations that serve to accomplish the various aspects of mail extraction, as well as the subsequent processing of extracted documents, and which are operativel... | 10/24/1995 |
| 5456972 | Method and apparatus for glow discharge plasma treatment of polymer materials at atmospheric pressure Polymer materials such as film and fabrics, woven, non-woven and meltblown, may be non-destructively surface treated to improve water wettability by exposure to a glow discharge plasma sustained at substantially atmospheric pressure in a modified gas atmo... | 10/10/1995 |
| 5454552 | Articulated fastening element An articulated fastening element (1) for use on a workbench, a machine bed, a vacuum table or the like, is composed of a flexible seal (2) which includes, in order to raise a workpiece to a predetermined height H, rigid raising elements (3) distributed ov... | 10/03/1995 |
| 5447806 | Gas-tight sealed nickel/hydride battery A gas-tight nickel/hydride battery with a high oxygen consumption rate and a correspondingly low internal pressure has a stacked arrangement of positive and negative electrodes wherein the negative electrodes are divided in two with a coarse supporting fr... | 09/05/1995 |
| 5443606 | Post-treatment of laminated nonwoven cellulosic fiber webs A method for post-treating a laminated precursor nonwoven web which includes layers of thermoplastic man-made fibers and at least one layer of cellulose-based staple natural fibers, including consolidating the web longitudinally and thereby reducing the m... | 08/22/1995 |
| 5441550 | Post-treatment of laminated nonwoven cellulosic fiber webs A method for post-treating a laminated precursor nonwoven web which includes layers of thermoplastic man-made fibers and at least one layer of cellulose-based staple natural fibers, including consolidating the web laterally and thereby reducing the maximu... | 08/15/1995 |
| 5441159 | Apparatus for handling documents for delivery to remittance processing equipment An apparatus for presenting documents to a remittance processing device includes an arm for receiving a plurality of the documents for presentation to the remittance processing device and a conveyor for drawing the received documents along the arm and to ... | 08/15/1995 |
| 5439118 | Apparatus for extracting documents from envelopes An extraction apparatus for the automated processing of bulk mail includes a first pair of rollers forming a nip for receiving each of a plurality of envelopes, with their contents. The envelopes, which have been opened along plural contiguous edges, are ... | 08/08/1995 |
| 5436141 | Method for synthesizing stable single-stranded CDNA in eukaryotes by means of a bacterial retron and products A method for producing in vivo stable single-stranded DNAs in eucaryotic cells. The DNAs are multicopy single-stranded DNA (msDNA) structures constituted by a RNA and a DNA portion. The group of genes (retrons) producing said coupled RNA and DNA portions ... | 07/25/1995 |
| 5435867 | Method of manufacturing a flexible tubular structure A tubular structure, such as a pipe or pressure vessel, is provided with a wall formed from plastic, composites and elastomeric materials. The composite materials are spirally wound and are separated by elastomeric strips. The wall has an inner wall eleme... | 07/25/1995 |
| 5435721 | Orthodontic device An orthodontic appliance having improved devices for interconnecting the braces associated with a patient's upper and lower teeth. Each connecting device generally takes the form of a unitary, thin band of material that can be connected between the braces... | 07/25/1995 |
| 5435515 | Adustable, iso-elastic support apparatus The support arm of a camera stabilizing device is provided with a tensioning assembly which is mated to the support arm in a fashion which permits continuous adjustment of the geometric relationship between the end points of the tensioning assembly and th... | 07/25/1995 |
| 5434070 | Reverse transcriptases from Escherichia coli and Myxococcus xanthus The common conserved structural features of msDNAs are described. A synthesis of msDNAs is described which involves a necessary reverse transcriptase. Reverse transcriptases are described which have unique properties in the synthesis of cDNAs. Various uti... | 07/18/1995 |
| 5433146 | Apparatus and method for marking pellet-shaped articles A pellet marking device which includes a ramp-type carrier system for receiving pellet-shaped articles to be imprinted from a feed hopper of improved efficiency, and for conveying the received pellet-shaped articles to a printing device which is combined ... | 07/18/1995 |