Patents by Inventor Syed M. Ahmed
Syed M. Ahmed has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8844502Abstract: An internal combustion engine direct injection fuel injector system includes a fuel rail which is welded to a fuel rail bracket. A fuel rail mounting sleeve has a flange and is bolted to the engine cylinder head. The bracket fits around the flange and is held in place by a steel washer and a pair of stepped isolator washers which are positioned in pockets formed on either side of the bracket. The isolator washers serve as springs which form a shock absorber between the bracket and cylinder head. Compression forces on the bracket and isolator washers are controlled by bolt tension.Type: GrantFiled: July 24, 2012Date of Patent: September 30, 2014Assignee: Ford Global Technologies, LLCInventors: Vince P. Solferino, Paul W. Zeng, Patrick C. Brostrom, Michael R. Kaput, Scott Lehto, Syed M. Ahmed
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Patent number: 8701632Abstract: A direct fuel injection fuel system includes a fuel rail cap and a fuel injector received within the fuel rail cap. A clip extends through slots in the fuel rail cap and engages the fuel rail to support the fuel rail within the fuel rail cap. The fuel rail cap includes a groove adjoining the slots to accept a portion of the clip. The clip engages a shoulder on the fuel injector assembly. The shoulder may be on the injector body or on an adapter secured to the injector body.Type: GrantFiled: July 24, 2012Date of Patent: April 22, 2014Assignee: Ford Global Technologies, LLCInventors: Vince P. Solferino, Paul W. Zeng, Patrick C. Brostrom, Michael R. Kaput, Scott Lehto, Syed M. Ahmed
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Publication number: 20140026401Abstract: An internal combustion engine direct injection fuel injector system includes a fuel rail which is welded to a fuel rail bracket. A fuel rail mounting sleeve has a flange and is bolted to the engine cylinder head. The bracket fits around the flange and is held in place by a steel washer and a pair of stepped isolator washers which are positioned in pockets formed on either side of the bracket. The isolator washers serve as springs which form a shock absorber between the bracket and cylinder head. Compression forces on the bracket and isolator washers are controlled by bolt tension.Type: ApplicationFiled: July 24, 2012Publication date: January 30, 2014Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Vince P. Solferino, Paul W. Zeng, Patrick C. Brostrom, Michael R. Kaput, Scott Lehto, Syed M. Ahmed
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Publication number: 20140027543Abstract: A direct fuel injection fuel system includes a fuel rail cap and a fuel injector received within the fuel rail cap. A clip extends through slots in the fuel rail cap and engages the fuel rail to support the fuel rail within the fuel rail cap. The fuel rail cap includes a groove adjoining the slots to accept a portion of the clip. The clip engages a shoulder on the fuel injector assembly. The shoulder may be on the injector body or on an adapter secured to the injector body.Type: ApplicationFiled: July 24, 2012Publication date: January 30, 2014Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Vince P. Solferino, Paul W. Zeng, Patrick C. Brostrom, Michael R. Kaput, Scott Lehto, Syed M. Ahmed
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Publication number: 20030133857Abstract: A polymerization reactor comprises a heat pipe jacket for the removal of large heat fluxes and capable of maintaining essentially isothermal conditions without the use of complicated and maintenance intensive circulation heat exchangers or internal coils. This isothermal reactor is useful particularly when polymerization is conducted in multiphase system and/or when the rate of reaction is high and when consistent polymer properties are desired.Type: ApplicationFiled: January 12, 2002Publication date: July 17, 2003Applicant: Saudi Basic Industries CorporationInventors: Vinh N. Le, Syed M. Ahmed
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Patent number: 5556599Abstract: A blood sample/fluid system includes a pair of tubes formed of identically shaped concentric cylinders, each closed at one end and open at the other end and having different diameters enabling the reduced diameter tube to be positioned in the enlarged diameter tube. A locking ring is positioned around the outer surface of the reduced diameter tube to provide a spacer and seal for the enlarged diameter tube. An identifying label is positioned on the outer surface of the enlarged diameter tube for providing identity for both tubes when the tubes are engaged and for the enlarged diameter tube when the reduced diameter tube is removed from the enlarged diameter tube.Type: GrantFiled: June 29, 1992Date of Patent: September 17, 1996Inventor: Syed M. Ahmed
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Patent number: 5143970Abstract: Water wet nitrocellulose, butyl acrylate/methyl methacrylate monomers and phosphate surfactant are emulsified into an oil-in-water emulsion and polymerized to produce a nitrocellulose/acrylic latex emulsion with a particle size below 0.25 microns. Wood finishing lacquers produced from this latex emulsion are equivalent in performance to solvent lacquers while lowering VOC to below 2.3 lb/gal.Type: GrantFiled: June 3, 1991Date of Patent: September 1, 1992Assignee: Aqualon CompanyInventor: Syed M. Ahmed
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Patent number: 5073282Abstract: Disclosed are electrorheological fluids which display improved stability against sedimentation, reduced current density and good electrorheological responses. In the preferred embodiment of this invention, these electrorheological fluids are prepared from monomers which are polymerized by dispersion polymerization in a low conductivity medium which also serves as the dispersion medium for the fluid.Type: GrantFiled: April 21, 1989Date of Patent: December 17, 1991Assignee: Hercules IncorporatedInventor: Syed M. Ahmed
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Patent number: 4992192Abstract: Disclosed are electrorheological (ER) fluids which display improved stability against sedimentation, reduced current density and good ER responses. Thes=e ER fluids are prepared from monomers which are polymerized by dispersion polymerization in a low conductivity medium which also serves as the dispersion medium for the fluid. The ER fluids are further processed by modifying the polymer particles through polymerization of a hydrophilic monomer to form a hydrophilic shell or globule around the particles followed by neutralization through addition of an organic soluble base. The resulting dispersion is then doped with water to obtain a stable ER fluid. The hydrophilic shell or globule constitutes about 15% of the particle. Water dopant is only absorbed by the hydrophilic portion of the particle and does not enter into the core of the particle. The quantity of water is significantly reduced, which in turn results in a significant reduction of the current density at any given comparative voltage.Type: GrantFiled: April 21, 1989Date of Patent: February 12, 1991Assignee: Hercules IncorporatedInventor: Syed M. Ahmed
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Patent number: 4990279Abstract: Disclosed are electrorheological (ER) fluids which display improved stability against sedimentation, reduced current density and good electrorheological response. These ER fluids are prepared from monomers which are polymerized by dispersion polymerization in a low conductivity medium which in most embodiments of the invention serves as the dispersion medium for the fluid. the ER fluids are further processed by modifying the polymer particles through polymerization of a hydrophilic monomer to form a hydrophilic shell or globule around the particles. The resulting dispersion is then doped with water to obtain a stable ER fluid. The hydrophilic shell or globule constitutes a minor part of the particle. Water dopant is only absorbed by the hydrophilic portion of the particle and does not enter into the core of the particle. The quantity of water is significantly reduced, which in turn results in a significant reduction of the current density at any given applied field strength.Type: GrantFiled: April 21, 1989Date of Patent: February 5, 1991Assignee: Hercules IncorporatedInventor: Syed M. Ahmed
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Patent number: 4896061Abstract: Improved series and shunt switching cells for selectively switching an RF input signal to an output over a wide range of frequencies and in a linear manner. The series cell includes an input FET which has the source electrode clamped by means of a diode clamping circuit. The diode clamping circuit is in series with a second FET which has applied to the gate electrode a control voltage. A third FET has its source electrode connected to the source electrode of the second FET and has the drain electrode coupled through a diode to the drain electrode of the second FET. The drain electrode of the third FET is coupled to the gate electrode of a fourth FET where the source electrode of the fourth FET controls a series switching FET to enable the input signal to be switched to the output.Type: GrantFiled: December 13, 1988Date of Patent: January 23, 1990Assignee: Siemens AktiengesellschaftInventor: Syed M. Ahmed
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Patent number: 4890068Abstract: An amplifier includes a first pair of FETS arranged in a differential amplifier configuration having their drain-source paths connected between a first constant current source and a point of operating potential. A second pair of FETS has gate electrodes coupled together for receiving an input signal, source electrodes coupled together to a second constant current source, and drain electrodes connected to sources of third and fourth FETS, respectively. The gate electrodes of the fourth FET and the first FET in the first pair are connected to the sources of the third and fourth FETS, respectively, the latter connection forming an output junction. A third pair of FETS has gate electrodes coupled together for receiving the input signal, source electrodes coupled together to the source electrodes of the second pair to form another differential amplifier configuration, and drain electrodes coupled to the source electrodes of fifth and sixth FETs, respectively.Type: GrantFiled: December 13, 1988Date of Patent: December 26, 1989Assignee: Siemens AktiengesellschaftInventor: Syed M. Ahmed
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Patent number: 4799962Abstract: A particulate water-soluble polymer is dispersed in a liquid medium comprised of low molecular weight polyethylene glycol, water and high molecular weight polyethylene glycol in amounts sufficient to impart stability to the dispersion. The dispersion is used in a process for dispersing the water-soluble polymer into aqueous solutions, such as latex paints, comprising preparing the dispersion and feeding the dispersion into the aqueous solution. The dispersion has excellent dispersion stability and fluidity, and is easier to handle and has a higher dissolution rate than the dry powder (particulate) form of the water-soluble polymer.Type: GrantFiled: December 24, 1987Date of Patent: January 24, 1989Assignee: Aqualon CompanyInventor: Syed M. Ahmed
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Patent number: 4774452Abstract: A zener diode is connected at one end via a first impedance to a first power terminal. The base-to-emitter junctions of first and second transistors are connected in parallel between the other end of the zener diode and a second power terminal. The collector of the first transistor is connected to the one end of the zener diode to regulate the zener current and hence the zener voltage. A third transistor is coupled at its base to the one end of the zener and its emitter is connected to an output terminal to produce an output voltage which is a function of the zener voltage. The collector of the second transistor is connected to the emitter of the third transistor to pass a current through the third transistor which is approximately equal to the current through the first and second transistors whereby the base-to emitter junction of the third transistor and its temperature variations have little, if any, effect on the output voltage.Type: GrantFiled: May 29, 1987Date of Patent: September 27, 1988Assignee: GE CompanyInventor: Syed M. Ahmed
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Patent number: 4644198Abstract: A semiconductor junction clamps a signal to a reference potential. A comparator senses the difference between the reference potential and the signal potential and causes a controllable bias current supply to selectively apply a forward bias to the junction when the signal is of a polarity sense tending to forward bias the junction.Type: GrantFiled: October 31, 1984Date of Patent: February 17, 1987Assignee: RCA CorporationInventor: Syed M. Ahmed
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Patent number: 4524091Abstract: Semiconductive photoanodes formed of titanium dioxide (TiO.sub.2) are known for use in photoelectrochemical cells. They have been made by various techniques, including chemical vapor deposition, thermal oxidation or anodic oxidation of thin titanium foils, hot pressing of TiO.sub.2 powder, and plasma spraying. The present invention provides a method for the fabrication of TiO.sub.2 thick film photoanodes, which method is simple, inexpensive and suitable for mass production of large area plates. The method comprises screen printing a film of conductive material on a clean alumina substrate which is then heated to fuse the conductive material into a conductive layer. A first layer of TiO.sub.2 particles in an organic carrier is then screen-printed over the conductive layer, at least 10% of the TiO.sub.2 being of anatase form. The structure is then heated to burn off the organic carrier and to transform at least part of the TiO.sub.2 from anatase form to rutile form, this resulting in good adhesion of the TiO.Type: GrantFiled: September 22, 1982Date of Patent: June 18, 1985Assignee: Canadian Patents and Development Limited-Societe Canadienne des Brevets et d'Exploitation LimiteeInventors: Cornelis Blaauw, Hussein M. Naguib, Syed M. Ahmed, Ahmad Aftab