Patents by Inventor David A. Silva

David A. Silva 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).

  • Publication number: 20070006941
    Abstract: A method for purging a manifold for the delivery of a high purity chemical by injecting of a purge gas into the manifold under vacuum conditions. In one embodiment, the method comprises a first step of injecting a purge gas into the manifold at a first end while applying vacuum at a second end; a second step of closing the first end and evacuating the manifold by applying vacuum at the second end; and a third step of opening the first end and injecting purge gas into the manifold at the first end while applying vacuum at the second end, causing a turbulent flow of the purge gas along the internal walls of the manifold due to the pressure differential between the purge gas and the evacuated manifold. An effective removal of residuals of the high purity chemical within the manifold is thereby achieved.
    Type: Application
    Filed: July 10, 2005
    Publication date: January 11, 2007
    Inventor: David Silva
  • Patent number: 7161546
    Abstract: A cliplike contact element which can be used to provide an electrical contact between an antenna amplifier mounted on a body of an automotive vehicle and an antenna structure on a window of the vehicle has two interfitting contact partners with the outer contact partner having at least an electrically-conductive surface hugging the conductive surface of the inner contact partner. The contact partners can be bonded, e.g. by soldering to respective conductors.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: January 9, 2007
    Assignee: Hirschmann Electronics GmbH & Co. KG
    Inventors: Alexander Gelman, Ortwin Zoller, David Silva
  • Patent number: 7121835
    Abstract: A contact spring assembly has a contact plate with a window in which a contact spring is received, the contact spring having bent strips engageable with an antenna amplifier and an antenna amplifier structure. The contact spring is fixed at one end and movable at its other end on the support plate.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: October 17, 2006
    Assignee: Hirschmann Electronics GmbH & Co. KG
    Inventor: David Silva
  • Patent number: 7121902
    Abstract: A contacting device, especially for an antenna amplifier in an automotive application to contact an antenna on a windshield or rear window of the vehicle has a lever-like contact element in the form of a strap or stirrup and bends lying in a plane and bearing upon the surfaces and bridging between them.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: October 17, 2006
    Assignee: Hirschmann Electronics GmbH & Co. KG
    Inventors: Alexander Gelman, David Silva, Ortwin Zoller
  • Publication number: 20060216959
    Abstract: A housing holds a first contact partner adjacent a throughgoing hole in the housing. Electrical contact is made between this first contact partner and a second contact partner outside the housing by a device having an electrically conductive and elastically deformable contact element engaged with all-around play in the hole between the contact partners and bearing elastically in one direction on the first contact partner and elastically in an opposite direction on the second contact partner. This element is formed with a flange bearing peripherally on the housing around the throughgoing hole.
    Type: Application
    Filed: May 26, 2006
    Publication date: September 28, 2006
    Inventors: Alexander Gelman, David Silva, Ortwin Zoller
  • Publication number: 20060212408
    Abstract: A method and apparatus provides a framework for specifying a multimodal application, such as an IVR, in a communication network. The framework provides a metalanguage that enables a programmer to specify a multimodal user interface using view logic, business rules using router logic, and integration with a backend enterprise system.
    Type: Application
    Filed: March 17, 2005
    Publication date: September 21, 2006
    Applicant: SBC Knowledge Ventures L.P.
    Inventors: Marcicalito Nuestro, Jayant Thomas, John Tadlock, David Silva, Bruce Brenton
  • Publication number: 20060179976
    Abstract: A method of promoting bud break uniformity and shoot vigor in deciduous trees and vines is shown. The method comprising applying an effective amount of a composition comprising nitrogen including ammoniacal nitrogen and nitrate nitrogen, soluble potash, calcium, boron, copper and trace elements including iron, manganese and zinc and a combination thereof. A composition for application to deciduous trees and vines is also shown. The composition comprises an enhancing effective amount of nitrogen including ammoniacal nitrogen and nitrate nitrogen, soluble potash, calcium, boron, copper and trace elements including iron, manganese and zinc and a combination thereof.
    Type: Application
    Filed: December 21, 2005
    Publication date: August 17, 2006
    Inventors: David Silva, James Coburn
  • Publication number: 20060174942
    Abstract: A high purity chemical delivery system is provided that connects a high purity chemical container to a high purity chemical utilization point and that comprises three manifolds, each of the manifolds having a plurality of diaphragm valves. The inventive system enables rapid clean out and purge after the container is replaced by means of a plurality of vacuum and purge cycles, which remove residual chemical and entrapped impurities while reduced manufacturing downtimes compared with systems in the prior art.
    Type: Application
    Filed: February 10, 2005
    Publication date: August 10, 2006
    Inventor: David Silva
  • Publication number: 20060159241
    Abstract: A framework is described for providing a service to a customer via a Interactive Voice Recognition system (IVR) using natural language expressions. The expressions are evaluated using rules-based programming rules. Evaluated expressions determine an eligibility of a business service to be offered to a customer. Interaction with the customer comprises selecting a semantically correct natural language expression from an appropriate vocabulary database.
    Type: Application
    Filed: January 20, 2005
    Publication date: July 20, 2006
    Applicant: SBC Knowledge Ventures L.P.
    Inventors: Vallabha Jagdish, Christopher Baker, Cuong Le, Eileen Burke, Lina Rijanto, Siyu Liu, Jack Sutton, Jagruti Sheth, Marcialito Nuestro, Jayant Thomas, David Silva, Katherine Nealon, Wayne Wisniewski, Shashi Pandey, Jason Mueller, Jiayu Sun
  • Publication number: 20060086398
    Abstract: A three valve block assembly is provided having three diaphragm valves, each of the valves having a diaphragm, a seat side, and a diaphragm side. In one embodiment, the diaphragm side of the first valve is juxtaposed to, and has flow communication with, the diaphragm side of the second valve and the seat side of the third valve, while the seat sides of the first and second valve and the diaphragm side of the third valve are each connected to external sources by means of individual conduits. In another embodiment, the seat sides of all three valves are juxtaposed to, and in flow communication with, each other. In yet another embodiment, the diaphragm sides of one valve and the seat sides of the other two valves are juxtaposed to, and in flow communication with, each other. In still another embodiment, the diaphragm sides of all three valves are juxtaposed to, and in flow communication with, each other.
    Type: Application
    Filed: October 27, 2004
    Publication date: April 27, 2006
    Inventor: David Silva
  • Patent number: 7028963
    Abstract: A mounting bracket (30) for securing a ceiling fan (12) to a ceiling joist (10) has two mounting arms (68) and a support ring (60). The two mounting arms (68) are disposed on opposite sides of the support ring (60) and extend upward for securing to the ceiling joist (10). A down rod (34) of the ceiling fan (12) is suspended from the support ring (60). The two mounting arms (68) each have exteriorly face portions (25) into which respective recesses (58) are formed. Two magnets (56) are disposed interiorly within respective ones of the recesses (58). A ceiling fan canopy (28) has at least a portion thereof defined by a rim portion (21) which is made of a ferrous material. The canopy (28) is disposed around the mounting bracket (30) and the rim portion (21) is magnetically secured to the mounting bracket (30) by the two magnets (56).
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: April 18, 2006
    Assignee: Litex Industries, Limited
    Inventors: David Silva, Claire M. Gerhardt
  • Publication number: 20060060254
    Abstract: An adapter manifold comprising a first dual valve block having a first diaphragm valve and a second diaphragm valve; a first, a second, and a third low dead space connector for connecting the adapter manifold with dual valve block to the remaining portions of the chemical delivery system; a first conduit for connecting both the diaphragm side of the first diaphragm valve and the seat side of the second diaphragm valves to the first low dead space connector; a second conduit for connecting the seat side of the first diaphragm valve to the second low dead space connector; and a third conduit for connecting the diaphragm side of the second diaphragm valve to the third low dead space connector.
    Type: Application
    Filed: September 18, 2004
    Publication date: March 23, 2006
    Inventor: David Silva
  • Publication number: 20060027281
    Abstract: A system for purging high purity interfaces connecting a high purity chemical container to process lines comprises a first purging manifold, connected at one end to a first adapter manifold extending from the high purity chemical container, and connected at the other end either to a process tool, to a second high purity container, to a source of gas, or to a source of vacuum on one side, or to a source of vent or to a source of vacuum on the other side; and a second purging manifold connecting the second adapter manifold either to a source of push gas, a source of purge gas, or a source of vacuum; or to a source of vent. A related method comprises blowing purge gas through both the first and the second purging manifolds, and, optionally, applying vacuum to both purging manifolds.
    Type: Application
    Filed: August 2, 2004
    Publication date: February 9, 2006
    Inventor: David Silva
  • Publication number: 20060011258
    Abstract: A purgeable manifold system for the movement of low vapor pressure chemicals that may be embodied in a variety of forms. In one embodiment, a container for storing the low vapor pressure chemical has a plurality of ports; a first manifold detachably connects a first port to a source of gas, vent, or vacuum by flow communication through a first diaphragm valve; a second manifold detachably connects a second port to a source of gas, vent, vacuum, or low vapor pressure chemical, or to a process tool by flow communication through a second and a third diaphragm valve, or alternatively detachably connects a third port to the same source by flow communication through a fourth and the third diaphragm valve; and a third manifold, detachably connects a fourth port to a source of gas, vent, or vacuum by flow communication through a fifth diaphragm valve.
    Type: Application
    Filed: July 13, 2004
    Publication date: January 19, 2006
    Inventor: David Silva
  • Publication number: 20050247473
    Abstract: The invention concerns a housing, in particular a housing for an electronic appliance for use in the automotive technical field. Said housing comprises at least two plastic housing parts (1, 2) which can be interlocked with each other via at least one interlocking connection.
    Type: Application
    Filed: October 10, 2003
    Publication date: November 10, 2005
    Applicant: Hirschmann Electronics GMBH & Co., KG
    Inventor: David Silva
  • Publication number: 20050229970
    Abstract: The present invention is an apparatus and process for storing and delivering a low vapor pressure process chemical to a process tool for semiconductor fabrication, comprising: a) a bulk container for storing the process chemical; b) a process container for delivering the process chemical to the process tool; c) a first manifold for delivering process chemical from the bulk container to the process container; d) a solvent container containing a quantity of solvent, e) a second manifold for delivering the process chemical from the process container to a process tool; f) a solvent recovery container for containing used solvent and removed process chemical, and, g) a solvent evaporator to differentially remove solvent from process chemical in the solvent recovery container by entrainment in a carrier gas, vacuum removal, heating or combinations thereof. The containers can be baffled on their inert gas inlets. The cabinet can be heated.
    Type: Application
    Filed: April 12, 2005
    Publication date: October 20, 2005
    Inventors: Charles Birtcher, Martin Martinez, Thomas Steidl, Gil Vivanco, David Silva
  • Patent number: 6951475
    Abstract: A cable strain relief device (1) for strain-relieving connection to a contact partner of at least one cable (2) which has at least one electrical lead (3), the at least one cable (2) having an attached extrusion-coated strain-relieving element (4) made of plastic, and the strain-relieving element (4) being attached by compression pins 7 or cement to the contact partner for strain relief.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: October 4, 2005
    Assignee: Hirschmann Electronics GmbH & Co. KG
    Inventor: David Silva
  • Publication number: 20050205104
    Abstract: A bobby-pin hair fastening band for fastening and styling hair comprising an elastic band with bobby-pins attached to each end. The user places the first bobby-pin to the hair. The user then wraps the band around, over or under their hair and places the second bobby-pin in the hair to secure.
    Type: Application
    Filed: March 20, 2004
    Publication date: September 22, 2005
    Inventor: David Silva
  • Publication number: 20050199255
    Abstract: A hair-band comb fastener and method for securing sections of hair of a human being comprising a retaining comb with a hair-band attached to its base. The comb base has teeth extending from two sides; a tooth from the first side lines up with a corresponding tooth from the second side. In use, the comb teeth from the first side are placed into a section of hair; the band is stretched over the hair, and the band is secured around the comb teeth. The invention gives the illusion of a plurality of hair sticks secured in the hair all with a single apparatus.
    Type: Application
    Filed: January 13, 2005
    Publication date: September 15, 2005
    Inventor: David Silva
  • Patent number: 6903698
    Abstract: An antenna assembly for a motor vehicle and especially for an antenna structure on a window of such vehicle in which a support plate is provided between an antenna amplifier and the antenna structure and has at least one but preferably a plurality of spring contacts locked through openings in the support plate and having arcuate portions respectively engageable with contact points on the antenna amplifier and contact pads of the antenna structure.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: June 7, 2005
    Assignee: Hirschmann Electronics GmbH & Co. KG
    Inventor: David Silva