"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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 |
| 6802874 | Linear compounds containing phenol and salicylic acid units The invention disclosed herein relates to linear compounds in the form of oligomers or polymers containing unsubstituted or substituted phenol units and unsubstituted or substituted salicylic acid units. These compounds are useful as additives for lubricants and fue... | 10/12/2004 |
| 6706670 | Water soluble metal working fluids This invention relates to novel water soluble metal working fluid compositions, their use to work metal, a process for working metal using such compositions and the metal worked article of manufacture. More particularly, this invention relates to fluid compositions ... | 03/16/2004 |
| 6596038 | Linear compounds containing phenol and salicylic acid units The invention disclosed herein relates to linear compounds in the form of oligomers or polymers containing unsubstituted or substituted phenol units and unsubstituted or substituted salicylic acid units. These compounds are useful as additives for lubrica... | 07/22/2003 |
| 6583093 | Condensates A cyclic compound comprising m units of the formula Ia: ##STR1## and n units of the formula (Ib): ##STR2## joined together to form a ring, wherein Y and Y2 are divalent bridging groups which may be the same or different in each unit; R0 | 06/24/2003 |
| 6399549 | Condensates A cyclic compound comprising m units of the formula Ia. ##STR1## and n units of the formula (Ib) ##STR2## joined together to form a ring, wherein Y and y2 are divalent bridging groups which may be the same or different in each unit; Ro | 06/04/2002 |
| 6200936 | Salicyclic calixarenes and their use as lubricant additives This invention relates to a cyclic compound comprising m units of formula (Ia) ##STR1## and n units of the formula (Ib) ##STR2## joined together to form a ring, wherein each Y is a divalent bridging group which may be the same or different in each un... | 03/13/2001 |
| 6048825 | Lubricant composition A lubricant composition suitable as a helicopter transmission lubricant comprises a synthetic base stock of viscosity in the range 5.0 to 10.0 cSt at 100° C., an antioxidant component, a neutral organic phosphate component, a dicarboxylic acid component,... | 04/11/2000 |
| 6004256 | Catalytic distillation oligomerization of vinyl monomers to make polymerizable vinyl monomer oligomers uses thereof and methods for same This invention discloses a process for making polymerizable and/or reactable vinyl monomer oligomers with narrow molecular weight distributions using catalytic distillation and a catalyst situated in an immobile catalyst bed in a reaction zone of the dist... | 12/21/1999 |
| 5972855 | Soybean based hydraulic fluid A soybean oil based hydraulic fluid of which the soybean oil is less than 85% by weight and the fatty acid profile of the hydraulic fluid includes about 0.12% C24:0. The base oil is hydrogenated to produce maximum possible stability of the soybean oil, an... | 10/26/1999 |
| 5908815 | Heat resistant grease A heat resistant grease composition containing a fluorosilicone base oil, a fluororesin thickener and an additive, that has a reduced gelling, reduced base oil evaporation, and stable heat resistance.... | 06/01/1999 |
| 5783531 | Manufacturing method for the production of polyalphaolefin based synthetic greases (LAW500) A method is disclosed for improving the thickener yield in soap thickened polyalphaolefin base oil greases comprising the steps of (a) producing a simple or complex soap thickener in a quantity of a first PAO of viscosity lower than that of the base oil c... | 07/21/1998 |
| 5750046 | Refrigerant system lubricant and method A method of maintaining and servicing air conditioning systems and compositions therefor are provided whereby newer, more environmentally friendly R-134a refrigerant gas is substituted for the older R-12 and R-22 types. In addition, a method of flushing a... | 05/12/1998 |
| 5681506 | Corrosion inhibiting lubricant composition A corrosion inhibiting lubricating composition comprises: (a) a synthetic ester base stock; (b) at least one aromatic amine antioxidant; (c) a neutral organic phosphate of the formula (R1 O)3 PO where R1 is a tolyl, phenyl, xylyl, a... | 10/28/1997 |
| 5536444 | Compressed-gas packages using polyoxyethylene glyceryl fatty-acid esters as suspension stabilizers and valve lubricants Aerosol compressed-gas packages for the administration of biologically active substances with novel suspension stabilizers and propellants which are not harmful to ozone.... | 07/16/1996 |
| 5536425 | Perfluoropolyether derivatives, and lubricants and magnetic recording medium using the same Novel perfluoropolyether derivatives are described which are obtained from perfluoropolyethers having a carboxyl group at one or both ends and monoamines or diamines. The derivative is useful as a lubricant owing to its significantly improved lubricity. T... | 07/16/1996 |
| 5356546 | Metal salts useful as additives for fuels and lubricants This invention relates to metal salts of the general formula Ay- My+ (I) wherein M represents one or more metal ions, y is the total valence of all M and A represents one or more anion containing groups... | 10/18/1994 |
| 4956110 | Aqueous fluid The use of a water-soluble hydroxyl di- or tri-carboxylic acid, generally in combination with an alkanolamine in an oil water fluid especially metal working or hydraulic fluids results in a fluid having excellent hard water compatibility, low foaming tend... | 09/11/1990 |
| 4954572 | Dispersant additives prepared from monoepoxy alcohols The present invention is directed to an oil-soluble lubricating oil additive comprising at least one adduct of (A) a polyolefin of 700 to 5,000 number average molecular weight substituted with carboxylic acid producing moieties (preferably acid or anhydri... | 09/04/1990 |
| 4938891 | Aqueous fluids Aqueous fluids having a good combination of anti-bacterial properties, stability in hard water, a reduced foaming tendency in soft water and at times a reduced boron content are obtained by the use as additive of a combination of a water-soluble hydroxy d... | 07/03/1990 |
| 4927550 | Corrosion preventive composition The present invention is, in one form, an aqueous alkaline metalworking fluid composition in the form of a concentrate which includes a salt of orthophosphoric acid; a dibasicdioic acid in an amount of up to about 5.0% by weight of the concentrate; an ess... | 05/22/1990 |
| 4855073 | Lubricant compositions and methods for preparation of same Disclosed are a lubricant composition comprising a major amount of one or more lubricant fluids and at least one polyvalent metal salt of the formaldehyde condensation products of C12 -C22 alkyl hydroxy benzoic acid, and a method of ... | 08/08/1989 |
| 4708808 | Synergistic antimicrobial or biocidal mixtures Synergistic anti-microbial compositions containing a mixture of a metal complex of a polyfunctional organic ligand and a biocidal composition which contains or releases a lower aldehyde containing 1 to 5 carbon atoms are described. The compositions are pa... | 11/24/1987 |
| 4707282 | Synergistic antimicrobial or biocidal mixtures Synergistic anti-microbial compositions containing a mixture of a metal complex of a polyfunctional organic ligand and a biocidal composition which contains or releases a lower aldehyde containing 1 to 5 carbon atoms are described. The compositions are pa... | 11/17/1987 |
| 4689166 | Succinic acid esters and hydraulic fluids thereform Hydraulic fluids contain as novel dispersants, reaction products of di- or trisuccinic anhydrides with polyethoxylated alcohols to produce polyethoxylated hydrocarbyl polyanhydrides.... | 08/25/1987 |
| 4666616 | Synergistic antimicrobial or biocidal mixtures Synergistic anti-microbial compositions containing a mixture of a metal complex of a polyfunctional organic liqand and a biocidal composition which contains or releases a lower aldehyde containing 1 to 5 carbon atoms are described. The compositions are pa... | 05/19/1987 |
| 4564461 | Method for the mechanical working of cast iron and an aqueous concentrate to be used in the method Mechanical working of cast iron is performed in the presence of an aqueous metalworking composition containing an organic copper (II) complex and an iron corrosion inhibitor. An aqueous concentrate, which after dilution with water is suitable for applicat... | 01/14/1986 |
| 4366076 | Corrosion inhibited compositions Corrosion-inhibited compositions are described comprising a functional fluid in contact with a ferrous metal and, as corrosion inhibitor, a compound having the formula: ##STR1## wherein X is H, an alkali- or alkaline earth metal, NH4, the ... | 12/28/1982 |
| 4263167 | Poly(alkylene oxide) compositions Poly(alkylene oxide) compositions are provided which exhibit excellent resistance to oxidative degradation and inhibit the corrosion of ferrous metals, which compositions have incorporated therein a small effective amount of a bridged dimer of a hydroxyl-... | 04/21/1981 |
| 4130493 | Machining fluid A machining fluid includes a basic component in the form of an aqueous solution and an aliphatic acid organic compound which is produced by a fermentation process comprising cultivating a microorganism in a culture medium containing a saccharide, nitrogen... | 12/19/1978 |
| 3962105 | Lubricating compositions Lubricating compositions containing seal swelling additives based upon certain diesters and/or ester lactones are disclosed.... | 06/08/1976 |
| 3947367 | Hydroxy acid heat stabilizers for ABS resins lubricated with ethylenediamine bis-stearamide A composition effective as a lubricant for incorporation in, and to enhance the heat stabilization of, an ABS resin, and consisting essentially of ethylenediamine bis-stearamide and a substantially minor amount of at least one of malic acid, citric acid, ... | 03/30/1976 |